Resource Random Battles Changelog

[A Cake Wearing A Hat]

8/21:

Gen 9 Random Battle:

-Azumarill's sets were split back up between Choice Band and Belly Drum, because belly drum being at 33% reduced Azumarill's winrate.

-Bulky Setup Great Tusk: -Tera Fighting, +Tera Steel.
-Komala: -Tera Normal

Gen 9 Random Doubles Battle:

-Pokemon with offensively-inclined roles and moves that don't want Life Orb (e.g. fake out, incinerate) now get Focus Sash in the lead slot, and if not in the lead slot, they get Heavy-Duty Boots or Clear Amulet depending on if they are weak to Rock.
-Glimmora now gets Focus Sash in the lead slot.
-Eternatus now gets Leftovers.

-Thunder Wave is now forced on Prankster users. Thus:
--Klefki's sets were fused together, due to a lack of need to split them anymore.
--Thundurus's Support set was changed to Bulky Protect.

-Forretress's first set is now Iron Head, Rapid Spin, Thunder Wave, Toxic Spikes, Volt Switch.
-Forretress has gained a second set: Choice Item user, with Body Press/Bug Bite/Iron Head/Explosion, a Choice Band, and Tera Fighting/Fire.
-Support Gengar was changed to Offensive Protect, and Clear Smog was removed. It now gets a Life Orb.
-Salazzle: +Heat Wave, role changed to Doubles Fast Attacker. It can now get Focus Sash, Heavy-Duty Boots, and Life Orb as its potential items.
-Donphan's Bulky Attacker set was removed. It now only runs Assault Vest.
-Arcanine: +Close Combat, -Tera Fire, +Tera Normal, +Tera Fighting, role changed to Bulky Attacker. Arcanine can now qualify for Assault Vest.

-Setup Sweeper Thundurus: -Sludge Bomb, +Protect
-Fast Attacker Golduck: +Protect
-Support Jolteon: +Protect
-Articuno: -Hurricane, +Brave Bird
-Support Scizor: -Feint
-Arceus-Fire: -Stomping Tantrum, +Protect
-Uxie: -Psychic, +Mystical Power

Gen 7 Random Battle:

-Feraligatr now has a set split: one set with Swords Dance and Aqua Jet, and one set with Dragon Dance and no Aqua Jet.
-Ledian now has a set split: one set with screens and no Defog or Encore, and one set with enforced Toxic with Encore and Defog as options.
-Doublade now has a second set: Staller, with Toxic instead of Swords Dance.
-Kangaskhan now has a second set: AV Pivot, with the same moves as its other set.

-Bulky Support Mismagius was changed to Bulky Attacker; it will now always get Dazzling Gleam. It also no longer runs Substitute.
-Fast Support Jumpluff was changed to Bulky Attacker to enforce Strength Sap.
-Shaymin's role was changed to Fast Support; it can now run a Life Orb when it isn't SubSeed.

-Arcanine is now always Intimidate.
-Mega Charizard Y will no longer always get Air Slash.
-Pressure will now only and always exist on Articuno, Dusknoir, Raikou, Suicune, Vespiquen, and Wailord.
-Autotomize Alolan Golem will now get a Life Orb instead of an Air Balloon.
-Black Sludge is now treated like Leftovers in HP EV calculation.

-Spinda can now sometimes roll Feint Attack instead of Sucker Punch.
-Bulky Attacker Tangrowth: -Giga Drain, +Power Whip
-Z-Move Volcarona: -HP Rock

 

[A Cake Wearing A Hat]

9/3:

Gen 6 Random Battle has been completely revamped, like Gen 7 was. Almost exactly like Gen 7, actually. The gens are very similar.

 

[A Cake Wearing A Hat]

9/8:

Gen 7 Random Battle:

All instances of "PT" refer to the "preferred type" system; a Pokemon with a preferred type will always generate with a move of that type. It will be referred to by the aforementioned "PT" shorthand in the rest of this pull request.

These changes are largely to align Gen 7's set optimization with that of the newly-revamped Gen 6 Random Battle when reasonable. Now, the only differences between generations 6 and 7 of Random Battle will involve actual generational mechanic, movepool, and stat changes.

Role additions/changes/removals:
-Steelix now has three sets:
--Wallbreaker, which is the Sheer Force Life Orb set unchanged
--Staller, which is Sturdy Leftovers with Earthquake, Heavy Slam, Toxic, and Protect
--Bulky Support, which is Sturdy Leftovers with Earthquake and any 3 of Heavy Slam/Toxic/Roar/Stealth Rock
-Arceus-Psychic has a set split:
--Bulky Setup with CM + Recover + Judgment + Fire Blast/Earth Power
--Bulky Attacker with Recover + Judgment + Earthquake/Fire Blast + Willowisp/Toxic/Defog/the other of Earthquake/Fire Blast
-Bronzong has a set split:
--Bulky Support, unchanged
-- Staller, with Toxic + Protect + any 2 of Iron Head/Psychic/Earthquake
-Aerodactyl has a set split:
--Bulky Attacker with Stone Edge + Earthquake + Roost + Defog/Taunt/Toxic/Stealth Rock and Leftovers
--Fast Support with Stone Edge + Earthquake + (almost) any 2 of Defog/Doubleedge/Pursuit/Stealth Rock/Roost, with Leftovers/Focus Sash/Life Orb/Choice Band depending on moves and team position
-Rapidash has a set split:
--Bulky Attacker with Flare Blitz + Morning Sun + any 2 of High Horsepower/Wild Charge/Will-O-Wisp and a Leftovers (new)
--Wallbreaker with Flare Blitz + any 3 of Morning Sun/High Horsepower/Wild Charge/Megahorn, with Life Orb or a Choice Band (new)
-Infernape: Setup Sweeper changed to Z-Move user (Fightinium Z)
-Farfetch'd: Fast Attacker changed to Setup Sweeper (forces Swords Dance) (DONE IN BOTH GENS 6 AND 7)
-Magcargo's Bulky Support changed to Staller (forces Toxic)
-Feraligatr's Wallbreaker changed to Bulky Setup (forces Aqua Jet and Swords Dance)
-Bulky Attacker (SubPunch) Mega Mawile has been removed.
-Setup Sweeper Carnivine has been removed.

Item changes:
-King's Shield Aegislash will now generate Leftovers instead of Life Orb.
-Jirachi: +Healing Wish; Healing Wish cannot generate with Body Slam; Choice Scarf Jirachi now exists.
-Dialga: -Roar, +Dragon Tail; Dialga can now run Assault Vest
-Primeape: +Hone Claws; Primeape can now run Life Orb

Move changes:
-Dusknoir: -Substitute, +Haze
-Staller Empoleon: +Defog
-Bulky Attacker Rampardos (the Mold Breaker one): +Superpower
-Fast Attacker Sceptile: +Rock Slide
-Bulky Support Mega Garchomp: -Toxic
-Hitmontop: +Earthquake
-Bulky Setup Suicune: -Hidden Power Grass; -PT Ice (no longer necessary in order to force Ice Beam)
-Dragon Dance Tyranitar and Mega Tyranitar: +Fire Punch
-Bulky Support Lunatone: -Ice Beam, +Moonblast
-AV Pivot Tangrowth: -Leaf Storm, +Giga Drain
-Bulky Attacker and Wallbreaker Machamp: +Bulk Up, +PT Dark
-Muk: -Explosion
-Bulky Attacker Venusaur: -Giga Drain, +Earthquake, +Energy Ball
-Bulky Support Kangaskhan: +Double-Edge
-Bulky Setup Chimecho: -Shadow Ball
-Z-Move user Venomoth: -Substitute, +Roost

Preferred Type changes:
-AV Pivot Lickilicky: +PT Ground
-Flareon: -PT Fighting (not necessary in order to force Superpower)

 

[A Cake Wearing A Hat]

9/13:

Random Battles was updated for the Teal Mask DLC. A full changelog would bypass the character limit of a Smogon post.

Notable trends include:
-Every new Pokemon was added. You can see their sets with the "/randbats" command!
-Pokemon with the Wallbreaker role now always get a STAB priority move if it is available in their Randbats movepool.
-Dipplin has Eviolite and does not die.
-Scale Shot sets were added to several Dragon-types. Scale Shot gives Loaded Dice. It's usually paired with Swords Dance.
-Knock Off has replaced all of those other Dark moves we were using as placeholders.
-A couple things got Scald. We didn't give it to everything that gets it, because not everything wants it over Hydro Pump.
-A couple things got Toxic. We didn't give it to everything that gets it, because not everything wants it over actual attacks.
-Flip Turn exists on several Water-types, and, aside from Basculin, it'll never generate alongside Aqua Jet.
-All those sad Pokemon relying on Stomping Tantrum now run High Horsepower.
-A couple things run Lash Out now. Not many.
-Physical Ghosts run Poltergeist now. Please excuse Banette's level being so busted-nasty for what it is now.
-Officially, now, under 10% of teams have three choice item users or more! This has been our goal for a while now. Let's hope we can maintain that rate.
-Officially, now, 38.1% of teams have hazard removal. Let's hope we can keep that number going up.

----------------

9/14

Bug fixes:
-Gliscor and Gurdurr no longer run Flame Orb and instead get their correct items.
-Grassy Glide is treated as a priority STAB move and is therefore enforced on Wallbreaker Rillaboom.
-Galvanize and Magnet Pull now appear on the correct sets on Alolan Golem.
-Ninetales now always gets Drought.
-Politoed now always gets Drizzle.
-Empoleon now always gets Competitive.
-Illumise now always gets Prankster.
-Leavanny will no longer get Overcoat, since Grass types are immune to powder moves.
-Weezing-Galar will no longer get Misty Surge, and now always gets Levitate.
-Setup Revavroom is now Fast Attacker, so that it gets Life Orb instead of Air Balloon.
-Uxie is now Bulky Support, to prevent Life Orb.
-Jirachi can now get Healing Wish and U-turn together, can get Wish + Protect + U-turn on the same set, and will no longer get Life Orb, all due to its role becoming Bulky Support.
-Ogerpon-Wellspring's non-support set is now Setup Sweeper, to enforce Swords Dance.
-Infernape's mixed Wallbreaker set is now Fast Attacker so that Mach Punch is not enforced; the physical set's role is now Fast Support, which is functionally identical to its previous role.

Regular ol' set changes:
-Fast Support Ribombee: -Tera Fighting
-Bulky Support Alolan Sandslash: +Iron Head
-Sunny Day Sunflora: -Energy Ball, +Giga Drain
-Swords Dance Mienshao is now its own set with Regenerator and Close Combat, instead of being part of the Reckless High Jump Kick set.

 

[A Cake Wearing A Hat]

9/14 again:

-Arbok now always has Intimidate and doesn't get Shed Skin. Whoops!

-Third Sandaconda set: Fast Bulky Setup with Loaded Dice Scale Shot + Rock Blast and Tera Dragon.

-Dipplin: -Leaf Storm
-Politoed: -Focus Blast, +Haze; Politoed now always gets Ice Beam
-Weezing and Galarian Weezing: -Sludge Bomb, +Gunk Shot (they have higher Attack)

 

[A Cake Wearing A Hat]

9/16:

-Ogerpon is now treated, functionally, as a Tera Blast user. It rejects other Tera Blast user roles, and is rejected itself if the team has a Tera Blast user.

-Fezandipiti's sets have been overhauled. Its AV Pivot set now has Beat Up over Brave Bird with Tera Dark/Steel/Water. It also now has a Bulky Attacker set with Roost, Gunk Shot, Play Rough, and Beat Up/Double Kick/U-turn with the same teras as above.

-Sunny Day Sunflora was removed. We tried. We can't do better than specs.
-Wallbreaker (Choice Band Wood Hammer) Ogerpon was removed.

-Ogerpon-Wellspring and Cornerstone's Fast Support roles were changed to Bulky Attacker; this means their non-Swords Dance sets will always have Synthesis now.

-Stealth Rock Golem now runs a Custap Berry.
-Weak Armor Shell Smash Magcargo now runs Heavy-Duty Boots.

-Regular Weezing now has a 50/50 chance of running either Sludge Bomb or Gunk Shot.
-Torterra: +Tera Rock

 

[A Cake Wearing A Hat]

9/20:

Singles:

-Decidueye-Hisui has received a set split: the Bulky Attacker set is identical to before except with Defog removed, and a Fast Support set with Defog has been added. This gives Defog sets Heavy-Duty Boots instead of Leftovers and increases the overall chance of Defog from 20% to 50%.

-Hatterene can now have a Bulky Setup Calm Mind + Draining Kiss set with Tera Fairy/Steel. Its remaining moves are Mystical Fire and a roll between Psychic/Psyshock.

-Empoleon's AV Pivot set has been removed.

-Sandslash-Alola's Setup Sweeper set can now roll Rapid Spin, making Swords Dance/Ice Spinner/Earthquake/Rapid Spin a possible set.

-Manaphy: -Tera Steel.

-Great Tusk's non-setup set is now Bulky Support to enforce Rapid Spin.
-Walking Wake's Specs set now runs Flip Turn, replacing Hurricane.

Technical:
-Setup Toxtricity's role is now Setup Sweeper, fixing an issue with both sets having the same role

----------

Doubles:

Teal Mask update. Notable:
-High Horsepower is now a move again.
-Knock Off is now a move again.
-All of the new mons are in.
-Sorry about the Sticky Web.
-Dark Void isn't in this on purpose.

 

[A Cake Wearing A Hat]

9/24:

Gen 9 Random Battle:
-Gothitelle now has a set split: one Bulky Setup Calm Mind set, and one Choice Scarf Trick Fast Attacker set. Newly, both have Focus Blast.
-Tinted Lens Yanmega now actually gets Choice Specs.
-Choice Scarf Dragon Energy Regidrago now exists as a third set.
-Ogerpon-Cornerstone: -Wood Hammer, +Power Whip (because of Sturdy)
-Zapdos: +Tera Steel, -Thunderbolt, +Discharge, role changed to Bulky Attacker (now always gets Roost; no more Specs)
-Komala: +Tera Dark, no longer gets Choice Scarf.
-Ursaluna-Bloodmoon no longer gets Silk Scarf. That was an accident.
-Support Alolan Sandslash: -Swords Dance, +Knock Off
-Cosmic Power Clefable was removed.
-Even if the team already has a hazard remover, Cyclizar will get Heavy-Duty Boots.
-Rillaboom: -Tera Flying
-Torkoal's role changed to Fast Support (yes, i know) so that it can get Tera Dragon Lava Plume + Rapid Spin + Stealth Rock + Yawn as a possible set.
-Lycanroc-Midnight: -Psychic Fangs, -Tera Rock, +Sucker Punch; now always gets Close Combat.

Technical:
-Speed reduction code has been generalized to include all pivot moves + wish + a speed stat at or below 70, instead of just being Wish + Flip Turn + Scald.
-Fast Support boots code now checks for all pivot moves, and not just specific ones.
-The Wallbreaker role now does not prevent Assault Vest with Rapid Spin.
-Dragon Energy gives a Choice Scarf.
-Removed some unnecessary Doubles item code.

Gen 9 Random Doubles:
-Illumise is now a fixed set of Encore + Bug Buzz + Tailwind + Thunder Wave.

Gens 6+7 Random Battle:
-Bulky Setup Kingdra (Critdra) was removed.
-Staller Illumise (the Substitute one) was removed.
-Torterra's roles were changed so its setup set gets Leftovers instead of a Life Orb.
-Sunflora: +HP Rock
-Mega Gyarados: -Ice Fang
-Cherrim: +Synthesis (and therefore Life Orb)
-Heatran: -Roar, +Taunt
-Kyurem-White: -Focus Blast
-Bouffalant: -Megahorn
-Sheer Force Tauros: +Fire Blast, +Preferred Type Ground (always gets Earthquake)
-Blaziken: -HP Ice, +Stone Edge
-Zangoose: +Preferred Type Dark (always gets Knock Off)

Gen 6 Random Battle specifically:
-Physical Mega Lucario: -Extreme Speed
-Spinda will no longer get Choice Band.
-Calm Mind Virizion was removed.
-Zygarde: +Glare

 

[A Cake Wearing A Hat]

10/1:

Gen 9 Random Battle:
-Alomomola and Vaporeon no longer get minimum Speed with Flip Turn.
-Normal-types with Fake Out now get a Silk Scarf. Affects Persian and Ambipom currently.
-Ariados now gets Insomnia instead of Sniper.
-Kommo-o's Wallbreaker set (the Boomburst one with Stealth Rock) has been deleted entirely.
-Clangorous Soul Kommo-o: +Boomburst, -Tera Dragon, +Tera Normal
-Gumshoos: -Psychic Fangs
-Webs Vikavolt: -Energy Ball
-Support Clodsire: -Haze
-Greedent: -Fire Fang
-Morpeko's Tera Types have been revamped to be only STAB teras; the one without Knock Off is Dark/Electric, and the one with Knock Off is only Electric. The reasoning for this is that Morpeko's Aura Wheel stops switching types when Terastallized, so Terastallizing a Morpeko should be a purely offensive move.
-AV Pivot Slowbro: -Tera Water, +Tera Fairy
-Goodra: -Tera Dragon
-Hisuian Goodra: -Tera Dragon, -Tera Steel
-Bulky Support Clefable: -Tera Fire, +Tera Poison
-Wigglytuff: +Tera Poison
-Scream Tail: +Tera Poison


Gen 9 Random Doubles:
-Morpeko is now only Tera Electric, for the same reasons as in singles.
-Morpeko: -Rapid Spin, +Knock Off
-Toedscruel: -Rapid Spin
-Decidueye: -Defog
-Clodsire: -Stealth Rock
-Toxapex now gets Leftovers.
-Toxapex: -Chilling Water, +Acid Spray
-Clefairy: -Icy Wind, +Moonblast


Broken Cup:
-Ogerpon formes, the Loyal Three, Ursaluna-Bloodmoon, Toxic Chain, Blood Moon, Ivy Cudgel, Matcha Gotcha, Supersweet Syrup, and Mind's Eye are now included in Broken Cup.


Gens 6 + 7 Random Battle:
-Galvantula now always gets Bug Buzz.
-Vikavolt in Gen 7 now always gets Bug Buzz.

 

[A Cake Wearing A Hat]

10/6:


Gen 9 Random Battle:
Per Council decisions, Last Respects is no longer in the format. Thus:
--Trick, Switcheroo, and Healing Wish will no longer give Choice Scarf with priority moves. (Trick Houndstone will be Choice Band, this doesn't affect anything else yet)
--Houndstone and Basculegion can now be leads again
--Houndstone: level 87
Set 1: Bulky Attacker, with Poltergeist + Body Press + Shadow Sneak, and a roll between Trick, Will-O-Wisp, and Roar as the last move. Tera Fighting. Leftovers or Choice Band.
Set 2: Bulky Support, RestTalk Poltergeist Body Press, Tera Fighting, Leftovers.
Set 3: AV Pivot, Poltergeist + Body Press + Shadow Sneak + Play Rough, Tera Fighting/Fairy.

--Basculegion-F: level 85, Tera Water only on both sets.
Set 1: Wallbreaker with Hydro Pump, Flip Turn, Ice Beam, Shadow Ball. Choice Specs.
Set 2: AV Pivot with Wave Crash, Hydro Pump, Flip Turn, and Shadow Ball.

--Basculegion-M: Level 86, Tera Water
AV Pivot with Wave Crash, Aqua Jet, Shadow Ball, and Flip Turn.
Other sets may be tried later, but Tera Blast is not going to be one of them due to how Adaptability works.


-Wallbreaker Trevenant: +Rest
-Bulky Support Trevenant: -Leech Seed, -Substitute, +Drain Punch, +Toxic, +Tera Fighting

-Wallbreaker Dusknoir: +Ice Punch, +Tera Ground, +Tera Dark
-add Dusknoir set 2: Bulky Support, Poltergeist + any 3 of Shadow Sneak, Earthquake, Haze, Pain Split, and Will-O-wisp. Tera Dark/Fairy.
-Koraidon now has a set split: set 1 is the current Choice Band set, while set 2 is Loaded Dice Scale Shot Swords Dance. Swords Dance Outrage Lum Berry Koraidon no longer exists.

-Gigaton Hammer is now enforced without needing to be Tera Steel.
-Bulky Attacker Tinkaton: -Tera Steel, +Tera Water
-Hisuian Avalugg: +Tera Ghost
-Bulky Support Arceus-Ghost: -Hex, +Judgment
-Hippowdon: -Yawn, -Whirlwind, +Roar
-Setup Altaria: -Tera Flying, +Tera Steel
-Dialga: -Flash Cannon, +Heavy Slam. Dialga no longer gets Choice items and instead now gets Assault Vest sometimes.
-Galarian Articuno: -Tera Psychic

Gen 9 Random Doubles Battle:
-Doubles Bulky Attacker Groudon: -Stealth Rock, +Heat Crash, Tera Fire only.
-both Weezings: -Toxic, +Poison Gas; Poison Gas will not generate with Will-O-Wisp.

Gen 7 Random Battle:
-Add Murkrow at level 90 (Council decision)
Set 1: Z-Mirror Move (+2 attack, uses the Z move of the mirrored move), Brave Bird, Sucker Punch, Protect.
Set 2: Bulky Attacker. Brave Bird + Roost + Thunder Wave + random roll between Haze, Pursuit, and Defog

Gen 6+7 Random Battle:
-Fast Attacker Celebi now always gets Psychic.

Gen 5 Random Battle:
It's this format's turn for a complete revamp! It's identical in function to previous revamps of Gen 6/7, with a notable addition of the Spinner role. This role's meant to ameliorate Gen 5's godawful hazard control situation. If a Pokemon could be a Spinner role, it will always run its Spinner role, unless the team already has a Rapid Spin user.

 

[A Cake Wearing A Hat]

10/15

This update is special for a few formats for a few different reasons.

Generations 5, 6, 7, and 9
-High Jump Kick users will now always be able to miss twice from full health without dying.

Gen 9 Random Battle:
This update contains many experimental changes that we will track via win rates in the next half-month, intended mainly to increase set variety and reduce Choice item frequency. Changes marked with * reduce Choice Item rate.

-Galarian Weezing now gets Neutralizing Gas 50% of the time.
-Milotic now gets Marvel Scale 50% of the time.
-Add Bulky Setup Dipplin: Dragon Pulse, Growth, Recover, Giga Drain. Tera Steel.
-Morpeko set 1's role changed to Fast Support, which gives it Heavy-Duty Boots.
-Add Bulky Setup Noctowl: Calm Mind, Hyper Voice, Hurricane, Roost. Tera Normal/Ground/Steel.
-remove Bulky Attacker Revavroom.
-Add Tera Blast Fire Dragon Dance Flapple.
-Wallbreaker Slowking: +Slack Off, -Psychic, -Tera Water (Psyshock is now forced) *
-add AV Pivot Munkidori: Fake Out Psychic Psyshock Sludge Wave U-turn, Tera Dark *
-Swords Dance masked Ogerpon formes: Grass move is now a roll between Horn Leech and Power Whip. Support sets and base Ogerpon remain unchanged.
-add AV Pivot Muk, consisting of its current set minus Haze, Toxic, and Toxic Spikes. Tera Dark. *
-Muk is now always Poison Touch.
-add Fast Support Pachirisu: Super Fang, Encore, Thunderbolt, U-turn. gets Heavy-Duty Boots. Tera Flying.
-add Bulky Setup Passimian: Drain Punch, Bulk Up, Knock Off, Gunk Shot. Tera Steel/Dark/Poison.
-add AV Pivot Hatterene: Psychic, Draining Kiss, Mystical Fire, Nuzzle, Tera Steel/Fairy. *
-Add Setup Sweeper Gallade: Agility, Sacred Sword, Psycho Cut, Night Slash. Tera Dark/Fighting. Gets Life Orb. *
-Water/Ground types with Water moves in their movepool now always get Water moves. As a result:
--Support Whiscash now always gets Hydro Pump
--Quagsire now has two sets: a Bulky Attacker set with Liquidation and no Ice Beam, and a Bulky Support set with Ice Beam and no Liquidation.
--Gastrodon now has two sets: a Bulky Support set with Surf and Earthquake (the current one), and a Bulky Attacker set with Earth Power and no Surf.
-Oinkologne M and F: -Lash Out, +Thief, by popular demand.
-add Setup Sweeper Infernape: Nasty Plot, Aura Sphere, Fire Blast, Vacuum Wave, Grass Knot. Tera Fire/Grass/Fighting. *
-Bulky Support Mesprit: +Tera Steel, +Tera Dark, -Thunderbolt
-add Bulky Support Mesprit: Drain Punch, Knock Off, Psychic, Ice Beam, Thunderbolt, Thunder Wave, U-turn. Tera Dark/Fighting. Gets Assault Vest or Leftovers.
-add Bulky Setup Chimecho: Calm Mind, Dazzling Gleam, Psychic, Psyshock, Recover. Tera Electric/Fairy, with Leftovers.
-Support Azelf and Uxie: +Tera Dark

Gen 9 Random Doubles:
This update is special because we've completely given up on having a decent amount of hazard removal in the format, and we're also reducing entry hazard distribution to compensate for us not tryharding to force Defog onto stuff as much.

-Wigglytuff, Tyranitar, Jirachi, all Arceus formes, Krookodile, Perrserker, Heatran: -Stealth Rock
-Scizor, Altaria, Giratina, Swanna, Cramorant: -Defog
-Ogerpon, Sandy Shocks: -Spikes
-Muk: -Toxic Spikes
-Arboliva: +Strength Sap
-Okidogi: +Snarl, role changed to Doubles Bulky Attacker (now gets Assault Vest sometimes)

Gen 6+7 Random Battle
-Luvdisc: -Ice Beam
-Wallbreaker Sigilyph now always gets a Psychic move.
-Relicanth now runs its Gen 5 set split minus Yawn, allowing Life Orb Rock Polish to exist.

Gen 6 Random Battle
-Flygon's Bulky Attacker set was changed to Bulky Support to enforce Defog when the team does not have removal. Its backup move when the team has removal already was changed from Fire Blast to U-turn.
-Tornadus-Therian's role was changed to Fast Support; it can now get Assault Vest.

Gen 5 Random Battle
Gen 5's first post-revamp update!

-Pinsir set split: Bulky Attacker with Stealth Rock, and Fast Attacker with Quick Attack and Swords Dance. Fast Attacker will always get Earthquake.
-Raichu no longer gets Choice Scarf.
-Ninetales: +Hypnosis
-Belly Drum Azumarill now exists, with Return as its coverage move.
-Houndoom no longer gets Expert Belt.
-Wallbreaker Sigilyph now always gets a Psychic move.
-Mawile now gets Leftovers instead of Life Orb if it gets Intimidate.
-Smeargle no longer gets Technician.
-Bugfix: Nature Power now well and truly counts as Earthquake when counting attacks for move generation.

 

[A Cake Wearing A Hat]

10/23:


Gen 9 Random Battle:
-Phione: Setup Sweeper changed role to Bulky Attacker (it now gets Leftovers instead of Life Orb)
-Bulky Support Dusknoir: -Haze
-Add Dusknoir set 3: Setup Sweeper, with Trick Room, Poltergeist, Leech Life, and Earthquake. Same teras as Wallbreaker.
-Toxic Hypno: +Tera Fighting
-Remove Hisuian Decidueye's second set, and readd Defog to set 1, due to the addition of Boots Defog causing a significant win rate drop.
-Special Shiftry: -Giga Drain
-Lycanroc-Dusk's role changed to Wallbreaker and priority-STAB Pokemon status removed (confusing, I know, but all this does is force Stone Edge while keeping Accelerock forced)
-Wallbreaker Cacturne: +Spikes
-add Illumise set 2: Bulky Attacker, with Bug Buzz over U-turn and no other differences.
-Wallbreaker Calyrex-Ice: -Zen Headbutt (no longer gets Choice Band, now always gets Close Combat and High Horsepower)
-Basculins: -all coverage moves, +Double-Edge, role changed to Wallbreaker (hits all Water immunities, and it now always gets Flip Turn)


Gen 9 Random Doubles:
-Great Tusk: -Earthquake
-Revavroom (both sets): -Spin Out, +Iron Head
-Cramorant: +Roost
-Due to the above singles change, Lycanroc-Dusk now always has Rock Slide and does not always have Accelerock.
-Kommo-o now has a 50/50 roll between Soundproof and Overcoat.
-Arceus-Grass: -Tera Grass, +Tera Steel


Gens 5-7 Random Battle:
-All 3: Lopunny's role changed to Wallbreaker to prevent Choice Scarf from generating on it.
-Gens 6 and 7: Trick Room Cofragrigus's role was changed to Bulky Setup; it now gets Leftovers instead of Life Orb.
-Gen 6: Spinda's role changed so that it now always gets Leftovers.
-Gen 5: the Swords Dance Venusaur set was removed.

 

[A Cake Wearing A Hat]

10/31:

Gens 5-9 Random Battle:
-Zoroark now visually mimics the level of your last team slot. For example, a level 79 Hisuian Zoroark disguising as an Arcanine will visually appear to be a level 84 Arcanine.
-Zoroark will no longer be the level of the last team slot. Zoroark is now level 84. Hisuian Zoroark is now level 79.

Gen 9 Random Battle:

Changes marked with * reduce choice item rate.

-Spectrier: +Draining Kiss, +Tera Fairy, -Tera Ghost
-Sawsbuck now has a set split; Tera Normal Headbutt, and Tera Normal/Ground Double-Edge. No other differences.
-Alolan Muk: +Shadow Sneak (we just didn't realize it got that back!)
-revert Trick Room Dusknoir, because Dusknoir's winrate quickly dropped after Trick Room's addition.
-revert Gastrodon's set split and stop Water STAB from being enforced on Water/Ground types again, because it was bad for both Gastrodon and Whiscash. Quagsire's set split will remain. Also, Gastrodon will still have two forced attacks.
-Support Delibird: -Memento, +Brave Bird; this set will still not get Hustle.
-Volbeat now has a second set that is Lunge over U-turn with no other differences, after the success of Bug Buzz Illumise.
-Noctowl's sets have been fused to one Bulky Attacker set with Defog or Calm Mind as a 50/50 roll.
-Webs Leavanny: +Swords Dance (will only get it on this set when the team already has a Sticky Web user)
-Webs Ribombee: +Psychic
-Luvdisc: +Ice Beam again, will still always get WishTect.
-Toxicroak has a set split, where it still gets all the sets it did before but now also gets Knock Off half the time. *
-New Armarouge set: Calm Mind Bulky Setup. Still has Weak Armor. *
-Jirachi: +Stealth Rock (can now get Leftovers on non-Wishtect sets) *

Gen 9 Random Doubles:
-Whiscash and Quagsire's roles were changed so that they still have forced Water moves after the Singles change.
-Delibird: -Rapid Spin
-Add Delibird set 2: Wallbreaker with Ice Shard, Ice Spinner, Brave Bird, and one of Foul Play or Drill Run. This set will get Hustle and a Choice Band. Tera Ice/Dark/Flying/Ground.

Gen 6+7 Random Battle:
-Fast Attacker Simisage: +Rock Slide, +Gunk Shot, +Preferred Type Fighting (will always get Superpower)

Gen 7 Random Battle:
-Castform's set was changed to its Gen 6 set (Weatherless mixed AV/Leftovers)
-Spinda's set was changed to its Gen 6 set, with the addition of Wish + Protect as an option alongside Rest + Sleep Talk. (I.e., no Z-Move)

Gen 5 Random Battle:
-Choice Band Exploud now runs Facade over Sleep Talk and always has Double-Edge.

 

[A Cake Wearing A Hat]

11/6:
Gen 4 was revamped.
The other update:

Changes marked with a * decrease the rate of choice items.

Gen 9 Random Battle:
-Toxic Grafaiai is no longer a set.
-Intimidate Choice Band Tauros no longer exists. It is now always Sheer Force. *
-Sunny Day Scovillain now exists. It is Boots unless the team has hazard removal, and runs Eball over Solarbeam due to wanting to have the flexibility to not require using Sunny Day. *
-Jirachi now has three sets:
--Fast Support with Iron Head, WishTect, and Body Slam or Future Sight. Tera Water.
--Bulky Attacker with all the attacks Jirachi previously had, plus Psychic, Energy Ball, Stealth Rock, and Drain Punch. Tera Water/Fighting. Gets Assault Vest always when not Stealth Rock.
--Bulky Support with Iron Head, Fire Punch, U-turn, WishTect, and Healing Wish; Healing Wish will get Scarf. Tera Water.
-Wallbreaker Hatterene has been removed entirely. (No longer gets Specs or Life Orb) *
-added Slack Off Bulky Attacker Glowbro. Tera Ground/Dark/Poison. STABs + Slack Off + Earthquake/Fire Blast/Thunder Wave. *
-Psychic moves are now forced on Poison/Psychic types.
-Mienshao no longer gets Choice Scarf at all; the Reckless set is now always Choice Band (role changed to Wallbreaker)
-Giratina-O: -Outrage
-Salamence: -Tera Flying, +Tera Steel; Outrage is now forced on it.
-Bulky Support Chimecho: +Tera Dark
-Dragalge: -Tera Fighting (now always has Hydro Pump)
-ACTUALLY FOR REAL THIS TIME Ariados should always be Insomnia.
-Arbok: -Sucker Punch; no longer gets Choice Band. *

Gens 6/7 Random Battle:
-Gourgeist formes will no longer run SubSeed sets.

 

[A Cake Wearing A Hat]

11/15:

Gen 9 Random Battle:
-Rock-weak Pokemon will now get Heavy-Duty Boots even with hazard removal on the team. (Council decision)
-Zangoose has been split into three fixed sets solely so that it always gets Knock Off.
-Furret's sets have been split; Tidy Up as it was before, and Choice Band with the addition of Trick over Brick Break.
-Carbink's sets have been fused together. Dual Screens Carbink will no longer generate as a second screens setter, but its fourth move will always be Body Press.
-Carbink has a new second set: Iron Defense, Moonblast, Body Press, and Rock Polish/Rest. Gets Chesto with Rest and Leftovers with Rock Polish.
-Arbok now has a Setup Sweeper set with Coil, Gunk Shot, Earthquake, and Sucker Punch/Trailblaze. Trailblaze gives Leftovers, Sucker gives Life Orb. Tera Ground.
-Diancie now has a Bulky Setup set with Calm Mind, Diamond Storm, Draining Kiss, and Earth Power. Tera Fairy/Water.
-Rillaboom no longer gets Acrobatics Grassy Seed, and also now always gets Grassy Glide on Swords Dance. Rillaboom can now be a lead again.
-Bulky Support Gliscor: -Stealth Rock, +Spikes; it also now always gets Protect on this set.
-Hustle Delibird: +Foul Play, +Tera Dark, role changed to Wallbreaker to force Ice Shard.
-Ribombee now always gets Shield Dust.
-Qwilfish, Hisuian Qwilfish, Overqwil, and Jumpluff will no longer get weather speed boosting abilities ever.
-Calm Mind Typhlosion-Hisui: +Tera Fire, +Tera Fighting, +Focus Blast
-Eruption Typhlosions are now only Tera Fire.
There are a lot of changes we made that caused the Pokemon's winrates to decrease, so we're doing the following now to revert them:
--Remove Psychic Ribombee
--Remove Marvel Scale Milotic
--Remove Neutralizing Gas Galarian Weezing
--Remove Growth Dipplin
--Remove Calm Mind Armarouge
--Readd Sucker Punch to Arbok
--Remove Slack Off from Wallbreaker Slowking, and readd Psychic and Tera Water.
--Readd Giga Drain to special Shiftry
--Remove Nasty Plot Infernape

Doubles:
-Delibird: -Memento
-Giratina-O: -Destiny Bond, +Poltergeist
-Choice Item Politoed: -Earth Power, +Weather Ball
-Volbeat now runs a copy of Illumise's set but with Lunge instead of Bug Buzz. No more TailPass.
-Electrode: -Tera Dark

Old Gens:
-Add Thunder Wave to Staller Blissey/Chansey, and allow Thunder Wave + Toxic on the Staller role. (gens 4-6)
-Torterra: -Swords Dance (gens 4-7)
-Manectric: -HP Grass, role changed to Wallbreaker to enforce Choice Specs (gens 4-7)
-Kyogre: Bulky Setup changed to Bulky Support; you can now get RestTalk 2 attacks. (Gens 4 and 5)
-Ledian no longer gets Swarm with no bug moves (Gen 4)
-Bulky Attacker Regirock: +Rest (Gen 4)
-Snorlax no longer gets Choice Scarf (Gen 4)
-Electrode now always gets HP Ice (Gen 4)
-Weezing's roles have been swapped, and the set with all the attacks now no longer gets Thunderbolt and doesn't always get Fire Blast anymore. (Gen 4)

 

[A Cake Wearing A Hat]

12/1:

Levels have been balanced in all generations based on win rates.

Changes marked with (*) reduce the rate of choice items.

Gen 9 Random Battle:
-Swalot's sets have been adjusted: alongside the Swords Dance set, it now has a set that's Toxic + Protect + EQ + Sludge Bomb with Tera Ground, and a Bulky Attacker set that's Sludge Bomb + Knock Off + any 2 other moves that Swalot's old support set used to get except Toxic or Protect, with Tera Dark. ...It makes more sense if you see it.
-Golduck's sets have been adjusted: its old set's role was changed to Fast Bulky Setup to enforce Nasty Plot and allow Leftovers on Encore + Nasty Plot + 2 attacks, and it has gained a new Fast Attacker set that's Grass Knot + Hydro Pump + Ice Beam + Flip Turn or Nasty Plot with Tera Grass or Water. This second set will either get Life Orb or Choice Specs depending on its fourth move.
-Mewtwo's sets have been adjusted: its old set's role was changed to Setup Sweeper to enforce Nasty Plot, and it has gained a new Fast Attacker set that's Psystrike + Dark Pulse + Recover + Aura Sphere or Focus Blast with a Life Orb. Yes, this means Specs Mewtwo is gone. (*)
-Bronzong's sets have been adjusted: its old set no longer has dual screens, and it now has a Bulky Setup set with Iron Defense + Body Press + any two of Iron Head, Psychic, and Rest. Leftovers with 3 attacks, Chesto with Rest.
-Dragonite has a new Tera Steel Iron Head Dragon Dance set. (*)
-Girafarig has a new Hyper Voice Nasty Plot set with Tera Normal/Electric.
-Raichu has a new Tera Blast Ice Nasty Plot set. (*)
-We're trying Sunny Day Sunflora one more time, but this time with Solarbeam and Earth Power instead of Energy Ball and Sludge Bomb. It's probably not going to work, but it's not like Sunflora really has anything to lose by trying. We'll revert if it's bad. (*)
-We're trying Chilly Reception Future Sight Boots Slowking one more time, but this time with Scald, now that it has it. Hopefully it doesn't result in a winrate decrease this time. (*)


-Florges is now Flower Veil even in Singles, as a nice bonus to all the Mayhem players out there.
-Kilowattrel is now Bulky Attacker instead of Fast Support; functionally, this means it now always gets Roost.


-Dual Screens has been removed from everything except Grimmsnarl and Uxie. This means it's gone from Bronzong, Hypno, Wigglytuff, and Carbink. No strong reason other than that screens isn't really that good on most of these mons and cutting them down as much as we can means fewer complaints about having multiple screens setters on a team.
-Wugtrio: -Memento, +Tera Ground
-Wigglytuff: +Knock Off
-Chesnaught: -Leech Seed
-Muk (both sets): +Poison Jab
-Arceus-Poison: +Dragon Dance (all other physical Arceus sets have Extreme Speed)
-Weavile and Chien-Pao: -Ice Spinner, +Icicle Crash
-Belly Drum Cetitan: -Icicle Crash, +Ice Spinner
-Swords Dance Iron Hands: -Close Combat
-Fast Support Electrode: +Tera Dark
-Vigoroth: -Tera Poison (after a long time, we've ultimately deduced that its winrate lowered after we added Tera Poison to it)
-Both Zamazenta-Hero sets: +Tera Steel


Gen 9 Random Doubles:
-Hisuian Arcanine is now always Intimidate. It has one Choice Band set with Rock Slide, Flare Blitz, Stone Edge, and Extreme Speed, and one Sitrus Berry Bulky Protect set with Protect, Flare Blitz, Rock Slide, and one of Will-O-Wisp and Morning Sun.
-Tera Blast Farigiraf was removed.
-Kingambit now has a Swords Dance set with Protect, Iron Head, and Sucker Punch.


Old Gens
-In gens 5, 6, and 7, Electivire now always gets Ice Punch.
-In Gens 6 and 7, Pangoro now always gets Scrappy if it does not have any punching moves.
-In Gen 7, Drampa now runs Berserk with Roost.
-In Gen 5, Pokemon with Poison-type moves now cannot generate Expert Belt.
-In Gen 5, Gengar now always gets Focus Blast.
-In Gen 5, Regirock's Bulky Attacker set is now Bulky Support.

 

[A Cake Wearing A Hat]

Apologies for being late on this update!

12/15:
The Indigo Disk update occurred! Obviously too much to make a full changelog, but notable points are as follows:

Knock Off is now forced on pure Normal and Fighting types.
Bug STAB is now forced on Bug/Electrics.
Psychic STAB is now forced on Grass/Psychics.
Kommo-o is now Soundproof.
Steel-type STAB is now enforced on Steel-types with base Attack stats of 90 or higher; this means that Magearna and Cobalion are now proud holders of Steel moves all the time.
Alluring Voice has replaced most instances of Dazzling Gleam. We'll try rolling between the two at a later point.
Psychic Noise has been added to many bulky Psychics
Throat Chop has replaced nearly every instance of Crunch, because of the new Sound moves. We'll try rolling between the two at a later point.
Double-Edge has replaced or become a roll with Body Slam on most offensive Normals.
Terapagos counts as a Tera Blast user.
Tera Blast Espathra has been removed.
Several new sets have been added for preexisting Pokemon that we'd like to try out, like Draining Kiss Enamorus-Therian, Swords Dance Grafaiai, and Curse Oinkologne.
Sheer Force Trailblaze Feraligatr is entirely intentional, before you ask.

 

[A Cake Wearing A Hat]

Partially late, partially early:
12/16:
-Scrafty will correctly get Shed Skin on Bulky Setup and Intimidate/Moxie on Setup Sweeper.
-Toucannon will get Keen Eye on sets where both Sheer Force and Skill Link are useless, since it can theoretically be useful.
-Primarina will always get Torrent.
-Ambipom will get Pickup on sets where Technician is useless, since it can theoretically be useful.
-Flame Charge Solgaleo gets Weakness Policy as intended, instead of Assault Vest.
-Meowstic will no longer get sets with only 3 moves.
-Dodrio will always get Early Bird.
-Tera Blast User (TBU) Keldeo is removed.
-Uxie's STAB move is now a Psychic/Psychic Noise roll.
-Bellossom's non-TBU set with coverage is now a roll between Sludge Bomb with Tera Poison and Moonblast with Tera Fairy.
-Lilligant's non-TBU set now has Alluring Voice as its coverage move instead of Pollen Puff.
-Goodra-Hisui's Curse set has been removed. It is now always Assault Vest.
-Araquanid no longer gets Focus Sash in the lead slot, since it has good bulk.
-Minior now has some defensive teras, specifically Steel and Water.
-Doubles Torterra will no longer get Loaded Dice; it was an unintended byproduct of a change to singles.

12/17:

-Kyurem's sets have been adjusted: Tera Blast Ground has replaced Earth Power on the Dragon Dance set, and it now has a Wallbreaker set that is either mixed 4 attacks Boots or Choice Specs, depending on moves rolled.
-Deoxys-Defense has a new Psychic Noise variant of its support set with Knock Off and Teleport, while the Night Shade set no longer has Knock Off.
-Toucannon will now get the correct abilities in the correct occasions.
-Shed Skin now actually appears when it's supposed to and doesn't appear when it's not supposed to.

12/20-12/21 probably (not live yet):
-Ditto is now Tera Stellar always. The meme will be missed.
-Raichu now has Alluring Voice on its support set.
-Alolan Raichu now has Alluring Voice and Tera Fairy as options. Its sets have also been split to make Nasty Plot always have Psyshock over Psychic.
-Gliscor's third set no longer has Protect enforcement or Spikes, because enforcing Protect and adding Spikes lowered Gliscor's win rate somehow.
-Toucannon now always has Beak Blast.
-Rampardos now gets Choice Scarf instead of Choice Band.
-Swampert now gets Damp when it does not have a Water move.
-Araquanid: +Tera Steel, +Tera Ground

 

[A Cake Wearing A Hat]

1/1/2024:

Levels have been balanced.

Gen 9 Random Battle:

Changes marked with * reduce the rate of choice items.
Changes marked with ^ were performed after consultation with the Random Battles PS! room as part of the Set Development Workshop room project.


-Iron Boulder will no longer be a lead, and will therefore no longer get Leftovers. (Council decision)
-Emboar no longer runs Life Orb on its Trailblaze set and instead gets Leftovers as intended.
-Vileplume now has a second set of Setup Sweeper with Sunny Day Tera Fire Weather Ball and a Life Orb.
-Muk and Alolan Muk now have an additional set of Bulky Setup with Curse, Knock Off, Gunk Shot/Poison Jab, Drain Punch, and Rest, with Leftovers or a Chesto Berry. *
-Kyurem now has an additional set of Bulky Setup with Substitute + Protect + Earth Power + Freeze Dry, with Leftovers. *
-Seviper now has an additional set of Fast Bulky Setup with Swords Dance, Trailblaze, Earthquake, and Gunk Shot, with Leftovers. Tera Ground/Grass. *
-Meganium now has a second set of Setup Sweeper with Swords Dance, Earthquake, Knock Off, and Petal Blizzard, with a Life Orb. ^
-Bombirdier's sets have been revamped. The preexisting set now has Roost instead of Hone Claws, and it has gained a second set of Bulky Support that does not have Stone Edge. I do not know why everyone wanted this outcome in particular. ^ *
-Ting Lu's second set has been changed to Bulky Attacker; as such:
--Set 1: -Ruination (to prevent too much set overlap, and also to prevent Ruination + Whirlwind hazardless)
--Set 2: -Tera Fighting, -Tera Ground, -Stone Edge, -Body Press, +Tera Ghost, +Spikes, +Stealth Rock
--the rate of Assault Vest has been lowered to around 10%


-U-turn Illumise no longer exists.
-RestTalk Duraludon no longer exists.
-Sheer Force Life Orb Toucannon no longer exists.


-Lycanroc (Midday): -Drill Run *
-Bastiodon: -Stone Edge, +Foul Play
-Smeargle: +Glare
-All Grimmsnarl sets: -Tera Fairy, +Tera Poison, +Tera Steel
-Oricorio-Pom-Pom: -Defog
-All Metagross sets: -Meteor Mash, +Heavy Slam
-Deoxys and Deoxys-Attack: +Tera Stellar to both sets
-Pyroar: +Taunt

Old Gens:

Gen 4:
-Sableye now runs a second set with Recover, Payback, Seismic Toss, and Toxic/Will-O-Wisp.
-Alakazam now has Calm Mind.

Gens 4-7:
-Floatzel now always gets Ice Punch on its Choice Band sets, and no longer has Low Kick enforced in gens 6-7.
-Pokemon that have Guts as a possible ability can no longer get Protect and Swords Dance together.
-Most Pokemon with Sniper no longer get the ability, since other abilities are superior.
-Swarm is now allowed with U-turn, even if the set has no other Bug-type attacks. This ensures that Beedrill will always get Swarm and not Sniper.
-Bronzong no longer gets screens.

Gens 5-7:
-Raticate now runs Crunch and always gets it.
-Wailord now gets Water Veil, instead of Pressure.
-Volbeat no longer gets Toxic and Illumise no longer gets Wish, to guarantee or increase the chance of Encore depending on the gen.
-Hypno no longer gets screens.
-Bulk Up Tornadus now gets Defiant as its ability.

Gens 6-7:
-Wigglytuff no longer gets screens, and can now get Knock Off.
-Genesect's physically-based sets have been split between Choice Band and setup. Genesect-Douse no longer exists.
-Leavanny no longer gets Overcoat, since it is Grass-type and hence immune to powder moves anyway.
-Victreebel now runs a Sunny Day set.
-Ice-types that don't run Blizzard and have Freeze-Dry will always get Freeze-Dry. Additionally, Lapras no longer runs Thunderbolt, and Glalie-Mega always gets Earthquake.

Gen 7:
-Volbeat now runs a second set with Lunge as its attack instead of U-turn.
-When its other abilities are useless, Toucannon will get Keen Eye, since it can theoretically be useful.
-Ledian have been revamped: Bulky Support has been removed so it no longer runs screens, and its Staller set now has Air Slash as its main attack instead of U-turn. Focus Blast has been added to Staller to hit Steel-types.

Gen 8:
-As per council decision, Glalie and Octillery no longer run Moody. Glalie is level 94 and Octillery is level 90.
-Glalie runs its gen 7 singles set in singles.
-Glalie runs its gen 9 doubles set in doubles.
-Octillery no longer runs Protect and now runs Scald and Thunder Wave in singles.
-Octillery no longer runs Substitute and now runs Thunder Wave in doubles.

 

[A Cake Wearing A Hat]

1/3/2024:

Gen 9 Random Doubles has been updated to Indigo Disk, now featuring Sleep Clause, more Muddy Water, more Double-Edge, and various other changes.

Gen 3 Random Battles has been revamped entirely to the same roles system as modern generations. New roles include the "Generalist" role (which does nothing special) and the "Berry Sweeper" role (which grants Salac/Petaya/etc. pinch berries and forces moves like Substitute and Endure if they're on the set).

 

[A Cake Wearing A Hat]

1/7/2024:

-Removed the limit of one Pokemon per unique type combination in gens 2-9.. This means it is now possible to get, for example, Kyogre and Barraskewda on the same team. Monotype will still have a limit of three Pokemon of a type combination in gens 6-9.
-Implemented a limit of four Pokemon weak to Freeze-Dry in gens 6-9. Testing has shown that its effect on team generation is negligible outside of its intended purpose.
-Gens 5, 6, and 7 no longer have a limit of two Pokemon per Smogon tier, since they no longer have Pokemon consistently attaining a winrate over 53%.
-Removed tier limits and the soft type cap from gen 1.

 

[A Cake Wearing A Hat]

1/20:

Gen 9 Random Battle
-Teams will no longer get multiple Sticky Web users. In order to accomplish this:
--Araquanid can now run Mirror Coat over Hydro Pump sometimes. If the team has a webs setter already, it will run both Mirror Coat and Hydro Pump with an Assault Vest.
--Kricketune now runs Swords Dance over Sticky Web on its current set if the team has a webs setter already. Swords Dance Kricketune will not exist otherwise.
--Ribombee's Sticky Web set can now run Psychic Noise. If the team has a webs setter already, it will run Moonblast + Psychic Noise + Stun Spore + U-turn.

-Teams will, under the vast majority of scenarios, no longer get multiple Stealth Rock users. In order to accomplish this:
--Golem's two sets have been fused together. Aside from tera types on the Stealth Rock set now matching that of Rock Polish, this presents no functional difference.
--Camerupt now runs Fire Blast and Will-O-Wisp instead of Lava Plume. Yes, this means it sometimes doesn't have Stealth Rock.

Removals and Reversions:
-Curse Stone Edge Garganacl no longer exists (Council decision).
-Assault Vest Regenerator Reuniclus no longer exists.
-Magnet Pull Alolan Golem no longer exists.
-Swords Dance Gliscor no longer exists.
-SubTect Kyurem no longer exists, as it performed poorly in win rate analysis.
-Slither Wing can no longer be a lead, which prevents Leftovers and Weakness Policy from generating on it (Council decision).
-Deoxys and Deoxys-Attack no longer run Tera Stellar, as they performed poorly in win rate analysis.
-Smeargle no longer runs Shed Tail or Glare, because it decreased in win rate despite gaining a level.
-Hydrapple now has Bulky Setup instead of Fast Bulky Setup, meaning it no longer gets Nasty Plot 3 Attacks Life Orb.
-Pyroar no longer runs Taunt, because it performed poorly in win rate analysis.
-Sweet Veil Alcremie no longer exists.
-Calm Mind Slowbro: -Psychic Noise
-Banette: -Will-O-Wisp
-Jirachi: -Doom Desire
-Ambipom: -Switcheroo
-Appletun: -Tera Grass

New Additions and Changes:
-Alcremie and Wigglytuff now roll between Alluring Voice and Dazzling Gleam.
-Grimmsnarl, Chien-Pao, Mightyena, and Ursaluna now roll between Crunch and Throat Chop.
-Sceptile now runs a third set of Setup Sweeper with Swords Dance, Leaf Blade, Earthquake, and Rock Slide with Tera Rock.
-Ursaluna-Bloodmoon now runs a second set with Vacuum Wave and no Earth Power.
-Toucannon now runs a second set with Swords Dance, Flame Charge, Brave Bird, and Bullet Seed.
-Luvdisc now runs a second set of Substitute, Endeavor, Surf, and Whirlpool with Heavy-Duty Boots.
-Heatran now runs a second set of Protect, Magma Storm, Will-O-Wisp, and Earth Power with Leftovers.
-Pyroar now runs a second set of Sunny Day, Fire Blast, Solar Beam, and Hyper Voice with Tera Fire/Grass.
-Armarouge now runs a second set of Power Herb with Meteor Beam, Armor Cannon, Energy Ball, and Psyshock with Tera Fire/Grass.
-Bombirdier now runs a third set of Heavy-Duty Boots with Hone Claws, Sucker Punch, Stone Edge, and Brave Bird with Tera Rock.
-Lapras now runs a third set of Heavy-Duty Boots with Dragon Dance, Earthquake, Waterfall, and Freeze-Dry with Tera Ground.
-Necrozma-Dawn-Wings now runs a third set of Life Orb with Dragon Dance, Moongeist Beam, Photon Geyser, and Brick Break with Tera Fighting.
-Rabsca now runs a second set of Calm Mind + Recover, without Revival Blessing.
-Komala's sets have been split and revamped such that AV always runs Body Slam and Choice items always run Double-Edge. Choice Scarf exists again. Coverage moves have been optimized significantly.
-Persian's sets have been split and revamped such that Fake Out always runs U-turn and Aerial Ace no longer exists.
-Terapagos now runs Calm Mind, Tera Starstorm, Dark Pulse/Earth Power, and Rest/Rapid Spin. It has no other sets anymore.
-Blastoise now runs a new Tera Blast Electric/Grass set.
-Porygon2 now runs a new Tera Blast Fighting/Fairy set with Shadow Ball and Thunder Wave. It is now also always Download.
-Tera Blast Enamorus now runs Tera Stellar with Moonblast, Play Rough, Superpower, and Tera Blast. Play Rough will not be removed from this set.
-Tinkaton now runs Pickpocket.
-Sandaconda's Bulky Support set was changed to Bulky Attacker to prevent mono-Earthquake sets.
-Toedscruel's Bulky Attacker set was changed to Bulky Support to force Rapid Spin.
-Night Shade Deoxys-Defense: +Cosmic Power
-Calm Mind Deoxys-Defense: +Tera Fighting
-Choice Band Terrakion: -Quick Attack, +Iron Head
-Palossand: -Hypnosis, +Sludge Bomb, +Tera Poison
-Fast Attacker Incineroar: -Overheat, +Flare Blitz
-Bulky Support Exeggutor: -Sludge Bomb, +Giga Drain
-Bulky Attacker Diancie: +Rock Polish (DOES NOT GIVE WEAKNESS POLICY)
-Greedent: -Psychic Fangs, -Tera Psychic, +Tera Ghost
-Dipplin: +Infestation
-Slither Wing: +Tera Fire
-Dialga: +Tera Flying
-Dialga-Origin: -Tera Steel, +Tera Fairy
-Support Tyranitar: -Tera Poison, +Tera Ghost
-Oricorio-Sensu: +Tera Ground

Gen 9 Random Doubles
-Sweet Veil Alcremie no longer exists.
-Tinkaton now runs Own Tempo or Pickpocket, weighted 2:1 towards Own Tempo.
-Toucannon now runs a second set with Beak Blast and Knock Off over Brave Bird and Tailwind.
-Iron Hands: -Tera Fighting
-Metagross now runs Heavy Slam over Meteor Mash.
-Iron Leaves now has the correct tera types on the correct sets.
-Ceruledge: -Close Combat

Old Gens
-All instances of Hidden Power Grass have been removed from Electric-types. This includes Electrode, Zebstrika, and Mega Manectric.
-Switcheroo was removed from Manectric in all gens in which it gets Volt Switch.
-Jolteon's sets were adjusted in gens 5-7 s.t. it always gets Volt Switch.
-Switcheroo was removed from Ambipom in all gens 4-7.
-Screens were removed from Grumpig in all gens 4-7.
-Superpower was removed from Krookodile in all gens 5-7.
-Staller Maractus had Toxic removed in favor of HP Fire/Ice in gens 5-7.
-Screens was removed from Deoxys-Speed in gens 4-5.
-Durant now always gets Superpower in gens 5-7.
-Electrode's first set now always gets HP Ice in gens 5-7.
-Dusknoir now always gets Earthquake in gens 4-7.
-Shiftry now always gets Sucker Punch and doesn't always get Dark Pulse in gens 4-5.
-Plusle and Minun will now always have HP Ice in gens 5-7.
-Vanilluxe will now always have HP Ground in gens 5-7.
-Ledian no longer runs Screens in gen 5-6. Its set was changed in 5 to look more like its Gen 7 set, with Acrobatics, Knock Off, and Focus Blast.
-Switcheroo and Aerial Ace were removed from all oldgens where Persian had them.
-Arbok lost Seed Bomb in gen 5 and Aqua Tail in gen 4 in favor of the other one.
-Chimecho was changed to include HP Fighting in Gen 5, to match Gen 4.
-Abomasnow no longer gets HP Fire in gen 5.
-Gen 5 Mienshao now can run Choice Band.
-Forretress now runs Earthquake over Gyro Ball in gen 5 and Payback over Gyro Ball in Gen 4.
-Calm Mind 3 attacks Serperior now runs Life Orb in gen 5.
-Lunatone now always has Psychic in gen 5 and can no longer run Choice Specs.
-Swords Dance Absol no longer runs Psycho Cut in gen 5.
-Drifblim no longer runs Thunder Wave in gen 5.
-Garbodor now always gets Drain Punch in gen 5.
-Moxie Heracross now always gets Stone Edge in gen 5.
-Ambipom now runs Payback in Gen 5.
-Jumpluff now gets Sleep Powder instead of Protect on its Staller set in gen 5.
-Night Shade Noctowl no longer exists in Gen 5.
-Ice Beam Pelipper no longer exists in Gen 5.
-Conkeldurr can now get Choice Band in Gen 5.

 

[A Cake Wearing A Hat]

1/31:

All Gens:
Level balancing occurred.

Keldeo (in gens 5-7), Dudunsparce, Maushold, Polteageist, Sinistcha, Basculin (red and blue), Magearna, and Zarude now all roll randomly between their effectively cosmetic formes in Random Battles and no longer have their cosmetic formes show up in the /randbats command.

Gen 9 Random Battle:
(*) - This change reduces the rate of Choice items

-Blaziken no longer gets Leftovers. Oops!
-Cinccino no longer gets Skill Link Choice Band, and instead now is a 50% roll between Loaded Dice Technician Tidy Up and Loaded Dice Technician U-turn. (*)
-Dewgong's roles have been changed to delete Assault Vest Dewgong. It is now 100% Heavy-Duty Boots.
-Latias and Latios now get Soul Dew instead of Life Orb and Leftovers. Choice Specs Latios still exists as normal.
-Rhyperior now has a second Bulky Attacker set with Assault Vest and Choice Band, and Tera Bug has been added to its Rock Polish set.
-Donphan's Bulky Attacker set has been removed and Ice Shard has been added to Bulky Support. Donphan no longer gets Choice Band unless the team already has hazard removal. (*)
-Venusaur and Vileplume no longer run Sunny Day sets.
-In order to increase code simplicity, Dudunsparce's Calm Mind set has been split into two, one for each coverage move. This means Calm Mind is now 2/3rds of Dudunsparces.
-Fast Support Hisuian Lilligant has been removed. It is now entirely Victory Dance.
-Rampardos now has Zen Headbutt and Tera Psychic on both sets. It no longer runs Fire Punch on Choice Scarf and no longer runs Crunch or Tera Dark on Life Orb.
-Haxorus is now only Tera Steel and now always gets Iron Head.
-SubSeed Whimsicott: +Encore (can roll over Hurricane)
-Arceus-Fairy: -Fire Blast, -Tera Fire
-Physical Mew: -Flare Blitz, -Brave Bird (last move is now a roll between Knock Off and Leech Life)
-Uxie: -Screens
-Dragon Dance Whiscash: -Liquidation, +Waterfall
-Hippowdon: -Roar, +Whirlwind (again)
-AV Pivot Eelektross: -Acid Spray, +Tera Steel
-Choice Band Terrakion: -Iron Head, +Quick Attack (previous change reverted due to winrates)
-Bulky Setup Chimecho: +Tera Poison, +Tera Steel
-AV Pivot Lurantis: +Tera Steel, +Tera Water
-Calm Mind Iron Valiant: +Tera Steel
-Lycanroc-Midnight: +Tera Rock
-Glalie: -Tera Steel, -Tera Poison, +Tera Ghost
-Zapdos-Galar: +Tera Dark
-Support Mesprit, Uxie, Support Bronzong, Support Chimecho: -Tera Electric
-SubSeed Scovillain: -Tera Water
-Curse Muk: -Tera Fighting
-Qwilfish: -Tera Water, +Tera Grass
-Setup Sweeper Roaring Moon: +Tera Poison
-Removed no-longer-necessary hardcodes involving Cinccino, Ambipom, and Dudunsparce

Gen 9 Random Doubles:
-Jumpluff's former Acrobatics set has been removed. Its Doubles Support set now has Acrobatics.
-Pecharunt's first set is now Doubles Setup Sweeper, and its second set no longer has Recover. As such, Protect + Recover Pecharunt no longer exists.

Gen 2:
ZU and ZUBL Pokemon now have levels associated with their tiers

Gen 7-8: A crash involving Wishiwashi was fixed.

 

[A Cake Wearing A Hat]

2/16:

Gen 9 Random Battle:
-Teams will now have at most one Toxic Spikes user.

New sets, set merges, and set splits:
-Chien-Pao has a set split: Wallbreaker Choice Band with Ice Shard + Sacred Sword + Icicle Crash + Throat Chop/Crunch, and Setup Sweeper with SD + Icicle Crash + Throat Chop + Ice Shard/Sucker Punch/Sacred Sword.
-Exeggutor has a new third set: Bulky Setup, with Calm Mind, Psyshock/Psychic, Giga Drain, and Substitute.
-Mismagius has a set split: Wallbreaker Choice Specs as normal without Nasty Plot, and Setup Sweeper with Tera Electric/Fairy, Nasty Plot + Shadow Ball + Tbolt/Dgleam + Mystical Fire/Substitute/Tbolt/Dgleam. Runs Leftovers with Substitute, and Life Orb otherwise. This decreases the rate of Specs Mismagius.
-Alolan Golem has a set split to give it better Tera Types. Setup Sweeper (Rock Polish LO) will have Tera Grass/Flying, while Wallbreaker (Choice Band) will have Tera Electric/Grass/Ground.
-Alomomola now has a second set of Fast Support that runs Heavy-Duty Boots but is otherwise identical.
-Dialga-Origin now has a second set that's identical aside from having Heavy Slam over Flash Cannon.
-Torkoal now has a set split: Wallbreaker with the same moves as usual, and Bulky Support with all the same moves except Earthquake. Only Bulky Support has Tera Dragon as an option. In effect, this increases the rate of Rapid Spin and deletes Assault Vest Torkoal.
-Granbull now has a second set with Roar over Encore.
-Kyurem-White now has a second set with Ice Beam over Earth Power.
-Earth Power Terapagos: -Rapid Spin, +Rock Polish. Role changed to Fast Bulky Setup to make this work on a technical level. Rock Polish will only generate with Calm Mind + Earth Power + Tera Starstorm and will get Leftovers.
-Setup Sweeper Electivire's role changed to Bulky Setup to give Leftovers; -Supercell Slam, +Wild Charge
-Setup Sweeper Raikou is now Bulky Setup to prevent Life Orb Raikou.
-Urshifu-Rapid-Strike is no longer hardcoded to have Punching Glove with Swords Dance. Now, it has two sets: one can get choice items and Life Orb, and the other can get Leftovers and is only SD + Ice Spinner + STABs. Aqua Jet and choice items are now half as common as before on it as a result.
-Arceus-Steel now has a set split between Calm Mind and Will-O-Wisp. It can no longer get both at once and will always have a ground move. Will-O-Wisp has Earthquake.
-Drifblim's sets have been merged for simplicity. Drifblim will no longer get Will-O-Wisp ever, and will instead always be Calm Mind if you have a hazard remover on the team already.
-Brambleghast's sets have been merged for simplicity. This has no functional change aside from slightly changing the chances to get SubSeed (I haven't done the math)
-Pawmot's sets have been merged. It now always runs Double Shock Tera Electric and no longer runs Volt Switch, Thunder Punch, or Focus Sash. All other moves and items still exist as normal.
-Iron Defense 3 attacks Probopass now runs Leftovers instead of Air Balloon.

Reversions of previous updates due to winrates: (written as: these changes are what are happening now)
-Tinkaton now has Mold Breaker again.
-Hydrapple can now run Life Orb 3 attacks Nasty Plot again (role changed back to Fast Bulky Setup)
-Slowbro's Bulky Support set now has Psychic Noise again.
-Dialga-Origin: -Tera Fairy, +Tera Steel (also in place for the new set)
-Tera Electric readded to Uxie, Bulky Support Mesprit, Bulky Support Bronzong, and Bulky Support Chimecho.
-Curse Muk and Curse Alolan Muk no longer exist.
-Dewgong now runs Assault Vest again sometimes.
-Rabsca no longer runs Calm Mind and now always runs Revival Blessing again.
-Toucannon no longer runs Swords Dance + Flame Charge.
-Pyroar no longer runs SunnyBeam.
-Heatran no longer runs its Leftovers Protect set.
-Bombirdier once again no longer runs Hone Claws.
-Choice Scarf Rampardos: -Tera Psychic, -Zen Headbutt, +Fire Punch
-Lycanroc-Midnight: -Tera rock
-Alcremie: -Dazzling Gleam
-Dipplin: -Infestation
-Grimmsnarl: -Crunch
-Oricorio-Sensu: -Tera Ground
-DD Whiscash: -Waterfall, +Liquidation
-Exeggutor: -Giga Drain, +Sludge Bomb, +Psychic
-Camerupt will now always get Stealth Rock again, but still has Will-O-Wisp and Fire Blast in its movepool over Lava Plume. Camerupt will still not generate as a second Stealth Rock setter.

Other removals:
-Choice Specs Galarian Slowbro no longer exists. (Wallbreaker: -Trick, -Sludge Bomb, +Shell Side Arm, -Psyshock, +Psychic)
-Draining Kiss CM Iron Defense Enamorus-Therian no longer exists.
-Cud Chew SubBU Tauros-Paldea-Combat no longer exists.
-WishTect Luvdisc no longer exists.
-Choice Scarf and Choice Specs Glimmora no longer exist (-Energy Ball)

Move and Tera Type changes:
-Hazards Gliscor: +Toxic
-Hustle Delibird: +Spikes
-Seed Sower Arboliva: -Energy Ball, +Leaf Storm
-Setup Sweeper (Aqua Jet) Crawdaunt: +Dragon Dance (as a roll with Swords Dance)
-Arceus-Water: -Taunt, +Calm Mind
-DD Tyranitar: -Fire Punch, +Ice Punch
-Dragalge: -Sludge Bomb, +Sludge Wave
-Araquanid: -Leech Life, +Lunge
-Toxtricity: -Toxic Spikes
-Noctowl: +Nasty Plot
-Arceus-Fighting: -Tera Psychic
-Venomoth: +Morning Sun
-Wallbreaker Tauros-Combat: +Tera Dark, +Tera Steel
-Cyclizar: +Tera Fairy
-Calm Mind Raging Bolt: +Tera Fairy
-non-Tera Blast Lilligant: +Tera Fairy
-Tera Blast Eiscue: +Tera Electric (as a roll with Ground)
-Ho-Oh: +Tera Steel
-Setup Sweeper Garchomp: +Tera Fire
-Vaporeon: +Tera Steel, +Tera Poison
-Orthworm: +Tera Ghost

Technical:
-Several pieces of item code were combined when reasonable and sanitized.
-Hardcodes removed for Urshifu and Luvdisc.
-Loaded Dice code was refactored to use multi-hit moves in general and not just Scale Shot to determine the item, to decrease the number of necessary Loaded Dice hardcodes.
-Doubles Clear Amulet code moved up in the priority list to better work with the new Loaded Dice code.
-Air Balloon code simplified significantly; no longer uses roles, and instead just exempts any setup move users from having Air Balloon.
-Revavroom's role changed to Setup Sweeper to be more face-value accurate given the above Air Balloon exemptions no longer require it to be Fast Attacker. No functional difference.

Gen 9 Random Doubles:
-Tinkaton is now Mold Breaker again.
-Slowking: -Slack Off, -Chilly Reception
-Slowbro: -Slack Off
-Deoxys-Attack: +Knock Off
-Scale Shot Loaded Dice Kyurem-Black no longer exists.

Old Gens
-In Gens 4-7, Rampardos now runs a Choice Scarf Fast Attacker set with two rock moves (Sheer Force with Fire Punch and Rock Slide in 5-7, Mold Breaker with Superpower and Stone Edge in 4), and a Setup Sweeper set with Rock Polish, Zen Headbutt, and no Crunch.
-In gens 4-7, Raikou no longer runs Life Orb on Calm Mind + 3 attacks sets, and Raikou also now always gets Hidden Power Ice.
-In gens 4-7, Meganium no longer runs dual screens, can now roll Earthquake, and always has Toxic.
-In gens 4-7, Ludicolo no longer runs Focus Blast.
-In gens 5-7, Ninetales now gets Leftovers when it only has two attacks.
-In gens 5-7, Krookodile now gets Choice Scarf and Superpower again.
-In gens 6-7, Cobalion no longer runs Volt Switch or Assault Vest.
-In gens 6-7, Snorlax can now sometimes run Curse + RestTalk.
-In gens 6-7, Purugly no longer runs Quick Attack or Sucker Punch.
-In gens 6-7, Eelektross no longer runs Acid Spray.
-In gens 6-7, Golem now has a second set of Rock Polish + Weakness Policy.
-In gens 4-5, Girafarig no longer runs HP Fire.
-In gens 4-5, Uxie no longer runs dual screens.
-In gen 7, Z-Move user Volcarona no longer runs Hurricane or Flyinium Z.
-In gen 7, Marshadow no longer runs Ice Punch. Choice Band sets now always have Shadow Sneak.
-In gen 6, Hitmonlee now runs a Bulk Up Unburden White Herb Close Combat set.
-In gen 5, Crawdaunt no longer runs Substitute
-In gen 4, Dewgong no longer runs Encore on its Hydration set.
-In gen 4, Cresselia no longer runs dual screens.
-In gen 4, Floatzel no longer runs Baton Pass.
-In gen 4, Magnezone now runs Toxic + Protect + HP Ice instead of Substitute + Magnet Rise + HP Fighting/Fire.
-In gen 3, Umbreon no longer runs its Mean Look set.
-In gen 3, Shuckle now runs Leftovers.
-In gen 3, Beautifly now always runs Psychic + HP Fire + Morning Sun + Toxic

 

[A Cake Wearing A Hat]

3/1:

Level balancing occurred.

Broken Cup was updated, for both singles and doubles.

Main update:


In Gens 2-9, teams will no longer have multiple Pokemon 4x weak to the same type. Council decision.

Gen 9 Random Battle:
-Paradox Pokemon now get Booster Energy with the Fast Bulky Setup role, instead of the Bulky Setup role. All Booster Energy sets have been adjusted to the Fast Bulky Setup role. On Paradox Pokemon, this role can not generate in the lead slot. Iron Boulder and Slither Wing can now be leads. Raging Bolt's Calm Mind set is now Bulky Setup.
-Great Tusk now has a Bulky Setup set, identical to its Fast Bulky Setup Set, except it gets Leftovers instead of Booster Energy as its item and can generate in the lead slot.
-Gouging Fire now has a second set with Morning Sun instead of Earthquake, and Tera Fairy instead of Tera Ground.
-Bulk Up Grimmsnarl has been removed.
-Black Glasses has been deleted from the format.
-Scream Tail now runs a second set with Dazzling Gleam instead of Play Rough.
-Kyogre's set has been split between choiced and Calm Mind. The Calm Mind set now runs Tera Dragon/Electric/Steel.
-Pokemon with Hustle and setup now run wide lens 50% of the time. This affects Flapple and Lilligant-Hisui.
Move and Tera Type changes:
-Urshifu: +Tera Poison.
-Bulky Support Chimecho: +Dazzling Gleam, +Tera Fairy.
-Swords Dance Feraligatr: -Earthquake, +Crunch, +Tera Dark/Dragon/Steel.
-Pelipper: -Ice Beam (both sets).
-Arceus-Fire: -Liquidation, -Tera Water.
-Bulky Support Mew: +Tera Dark.
-Coalossal: +Flamethrower, roll with Overheat.
-AV Hariyama: +Stone Edge.
-Bulky Support Clodsire: +Gunk Shot, incompatible with Poison Jab.
-Setup Clodsire: +Tera Steel.
-Bulky Attacker Talonflame and Fast Attacker Charizard: -Tera Water, +Tera Dragon.
-Gogoat: +Tera Water, +Rock Slide.
-Moltres-Galar: +Tera Steel.
-Tornadus and Fast Attacker Tornadus-Therian: +Tera Fighting.
-Wallbreaker Oranguru: +Tera Normal.
-Fast Support Masquerain: +Tera Water.
-Zamazenta-Crowned: -Behemoth Bash, +Heavy Slam.
-Giratina-Origin: +Tera Fairy/Steel.
-Fast Support Garchomp: -Fire Blast.
-Calm Mind Cobalion: +Focus Blast, roll with Aura Sphere. +Tera Ghost/Water.
-Nasty Plot Lucario: -Aura Sphere. It now always runs Focus Blast.

Gen 9 Random Doubles Battle:
-Dragonite: -Roost.
-Clodsire's role has been changed to Doubles Bulky Attacker, ensuring that it always runs Gunk Shot.
-Mesprit: -Mystical Power.
-Arceus-Ghost now runs a Calm Mind set with Judgment, Dazzling Gleam, Focus Blast, and Recover, with Tera Fairy/Fighting.
-Terrakion: -Tera Water.
-AV Raging Bolt: -Breaking Swipe, +Electroweb, +Snarl. It always runs Thunderclap and doesn't always run Thunderbolt.
-Sets with Iron Defense now get Leftovers by default.
-Kilowattrel's ability is now always Competitive and it no longer gets Volt Absorb.

Old Gens:
-In Gens 4-7, Grass/Poison types no longer run HP fire and instead run HP ground or a superior Ground move.
-In Gens 5-7, Substitute users that don't have Leftovers can use Substitute 4 times from full HP without fainting.
-In Gens 5-7, Alakazam's Fast Attacker set no longer runs HP fire, ensuring that it always has Counter and Focus Sash.
-In Gens 5-7, Chansey's Bulky Support (Wish) set now runs Softboiled instead of Protect.
-In Gens 5-7, Bulk Up Scrafty always runs Drain Punch and no longer runs High Jump Kick.
-In Gens 6-7, Alakazam now has a second set with Calm Mind and Life Orb, identical to what it runs in Gen 5.
-In Gens 6-7, Noctowl no longer runs Heat Wave and instead runs Toxic.
-In Gens 6-7, Suicune no longer runs Hydro Pump and always runs Scald.
-In Gens 6-7, Beautifly now runs a fixed set of Quiver Dance, Bug Buzz, Air Cutter, and HP ground.
-In Gens 6-7, Crawdaunt can now get Aqua Jet + Dragon Dance.
-In Gens 6-7, Abomasnow and Mega Abomasnow will always have Blizzard + Ice Shard + Earthquake + a grass move. Focus Blast has been removed.
-In Gens 6-7, Speed Boost Yanmega now runs HP ground instead of Giga Drain.
-In Gens 6-7, Dialga now always runs Fire Blast.
-In Gens 6-7, Sticky Web Leavanny now runs Toxic and no longer runs Heal Bell.
-In Gens 6-7, Dragon Dance Scrafty always has Iron Head as its 4th move. It no longer runs Ice Punch or Poison Jab.
-In Gens 6-7, AV Pivot Reuniclus has been removed.
-In Gens 6-7, Swanna no longer runs Ice Beam. It has been replaced by Toxic on the Bulky Attacker set.
-In Gens 6-7, Galvantula can no longer obtain Choice Scarf.
-In Gens 6-7, Gogoat can now run Toxic, which is a roll with Bulk Up.
-In Gens 6-7, Meowstic-F now runs Dark Pulse instead of Shadow Ball.
-In Gens 6-7, Diancie no longer runs dual screens.
-In Gens 6-7, Mega-Diancie no longer runs Hidden Power Fire and always runs Earth Power. In Gen 7, it no longer runs Power Gem and always runs Diamond Storm. In both gens, its sets have been merged, since the set splits are no longer necessary.
-In Gen 7, Bellossom's sets have been split and roles modified so that sets with coverage can now be rolled even if the team doesn't have a Z-move user. HP rock is now a possible coverage move.
-In Gen 7, Spinda no longer runs WishTect. Its sets have been merged.
-In Gen 7, Rayquaza now only runs setup sets. This ensures that it will always get Z-move user with Dragon Ascent unless the team already has a Z-move user. When the team already has a Z-move user, it will either run Swords Dance or Dragon Dance.
-In Gen 7, Lycanroc-Midnight now runs Stomping Tantrum instead of Fire Punch.
-In Gen 7, Bewear now runs Leftovers instead of Life Orb on its sets with Swords Dance. A second set has been added with Bulk Up, Drain Punch, Shadow Claw, and Return/Double-Edge.
-In Gen 7, Oranguru now runs Nature Power (Tri Attack) and Psychic.
-In Gen 7, Tapu Fini no longer runs Scald and instead runs Surf.
-In Gen 7, Kommo-o and Buzzwole now run Iron Head instead of Poison Jab.
-In Gen 7, Necrozma-Dawn-Wings now runs Signal Beam instead of Power Gem.
-In Gen 6, Ledian now runs a Staller set similar to Gen 7, but with Knock Off as its main attack.
-In Gen 6, Rayquaza now runs the same sets as in Gen 5. It runs mixed Life Orb, Choice Band, Dragon Dance and Swords Dance.
-In Gens 4-5, Venusaur no longer runs HP ice.
-In Gens 4-5, Muk always runs Brick Break. In Gen 5, Muk no longer runs Fire Punch.
-In Gens 4-5, Altaria's Bulky Support role has been changed to Bulky Attacker, to ensure it runs a coverage move.
-In Gens 4-5, Deoxys and Deoxys-Attack no longer run HP Fire.
-In Gens 4-5, Arceus-Normal now always runs Earthquake.
-In Gens 4-5, Pokemon with a pivoting move can no longer obtain Focus Sash, unless they have a hazard move.
-In Gen 5, Arbok's sets have been updated to obtain more appropriate items. It still always runs Coil, Gunk Shot, and Earthquake. It can run Glare or Sucker Punch with Life Orb, or Rest or Sucker Punch with Leftovers.
-In Gen 5, Flareon no longer runs WishTect with Lava Plume and is always Guts with Toxic Orb.
-In Gen 5, Crobat now runs Hypnosis.
-In Gen 5, Grumpig now runs a Wallbreaker set with Psychic/Psyshock, Focus Blast, Shadow Ball, Calm Mind, and Trick.
-In Gen 5, Glalie no longer runs Explosion and runs Super Fang. It will always run Earthquake.
-In Gen 5, Phione now runs a Rain Dance Hydration set with Damp Rock.
-In Gen 5, Arceus-Poison can now run a Calm Mind set.
-In Gen 5, Whimsicott's Fast Support set no longer runs Leech Seed.
-In Gen 5, Swanna's Rain Dance set no longer runs Ice Beam and always runs Rest.
-In Gen 5, Jumpluff and Crobat no longer run Infiltrator, since it is only useful for ignoring screens and there are no screen setters in the format.
-In Gen 5, Slowbro's Calm Mind set now has the Staller role, to ensure it always gets Leftovers.
-In Gen 4, Seaking now always runs Rain Dance.
-In Gen 4, Ampharos no longer runs dual screens.
-In Gen 4, Ledian's non-Baton Pass set has been modified to be a Staller set like in later generations, with HP Flying as the STAB move.
-In Gen 4, Masquerain now runs a Bulky Support set with Air Slash, Bug Buzz, Hydro Pump, Roost, Stun Spore, and Toxic.
-In Gen 4, Lunatone now runs a Bulky Support set with Psychic, Earth Power, Explosion, Stealth Rock, and Toxic.
-In Gen 4, Giratina-O no longer runs its Substitute + Calm Mind set.
-In Gen 3, Choice Band Dodrio and Fearow no longer run Baton Pass and always have Quick Attack.
-In Gen 3, Absol now runs Double-Edge on both its setup and Choice Band sets, and no longer runs Baton Pass on Choice Band.
-In Gen 3, Forretress will no longer get Choice Band. This is done via a set split ensuring it always has a status move.
-In Gen 3, Linoone's Bulky Setup set will always have HP ground.
-In Gen 3, Milotic no longer runs a RestTalk set.
-In Gen 3, Tropius no longer runs Sunny Day; the set has been replaced by Swords Dance.
-In Gen 3, Xatu's ability is now always Synchronize.