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Destroys most stall teams and fits well on screens / webs HO
240 HP EVs give Manaphy a high chance to avoid a 2HKO from Mega Metagross while also always surviving a Thunderbolt from Choice Scarf Magnezone even after Stealth Rock damage. They also allow Manaphy to always avoid the 2HKO from maximum Special Attack Life Orb Clefable and the OHKO from Choice Specs Latios's Draco Meteor. 160 Special Attack EVs with a Modest nature let Manaphy OHKO Mega Metagross after Stealth Rock damage and one Tail Glow boost. 108 Speed EVs allow Manaphy to outspeed Jolly Bisharp, Mega Metagross before it Mega Evolves, and defensive Garchomp.
The premier screens setter in oras. Provides good utility as it can check stuff like rotom and manaphy, and also can be offensively threatening thanks to leafs storm.
BW OU, courtesy of Ophion
Thundurus-Therian (M) @ Leftovers
Ability: Volt Absorb
Hidden Power: Ice
EVs: 24 HP / 252 SpA / 56 SpD / 176 Spe
Timid Nature
- Thunder
- Hidden Power [Ice]
- Focus Blast
- Protect
Heatran @ Leftovers
Ability: Flash Fire
EVs: 252 HP / 96 SpA / 160 Spe
Modest Nature
- Magma Storm
- Sunny Day
- Solar Beam
- Earth Power
These are still up for reservation:
PU
Archeops @ Power Herb
Ability: Defeatist
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Meteor Beam
- Air Slash
- Earth Power
- Stealth Rock / Heat Wave
LC (claimed by @Aurora)
Drilbur @ Eviolite
Ability: Mold Breaker
Level: 5
EVs: 116 HP / 76 Atk / 196 Def / 120 Spe
Impish Nature
- Stealth Rock
- Earthquake
- Rock Slide
- Rapid Spin
DOU (claimed by @dnagerbdager)
Lurantis @ Sitrus Berry
Ability: Contrary
EVs: 248 HP / 252 Atk / 8 SpD
Brave Nature
IVs: 0 Spe
- Leaf Blade
- Superpower
- Knock Off / Substitute
- Protect
Tyranitar @ Sitrus Berry
Ability: Sand Stream
EVs: 188 HP / 252 Atk / 68 SpA
Brave Nature
- Stone Edge
- Crunch
- Ice Beam
- Stealth Rock
BSS, courtesy of Theorymon (claimed by martinvtran)
Groudon @ Sitrus Berry / Light Ball
Ability: Drought
Level: 50
EVs: 252 HP / 4 Def / 252 SpD
Careful Nature
- Stealth Rock
- Earthquake
- Thunder Wave / Fling
- Rock Tomb
OU pt.2, courtesy of Tysonslayer (claimed by Sulo)
Tapu Koko @ Heavy-Duty Boots
Ability: Electric Surge
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Volt Switch
- Dazzling Gleam
- Nature's Madness / Toxic
- Roost
Also, these are still up for reservation:
PU (claimed by @dnagerbdager)
Archeops @ Power Herb
Ability: Defeatist
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Meteor Beam
- Air Slash
- Earth Power
- Stealth Rock / Heat Wave
DOU
Tyranitar @ Sitrus Berry
Ability: Sand Stream
EVs: 188 HP / 252 Atk / 68 SpA
Brave Nature
- Stone Edge
- Crunch
- Ice Beam
- Stealth Rock
BW OU
Thundurus-Therian (M) @ Leftovers
Ability: Volt Absorb
Hidden Power: Ice
EVs: 24 HP / 252 SpA / 56 SpD / 176 Spe
Timid Nature
- Thunder
- Hidden Power [Ice]
- Focus Blast
- Protect
Heatran @ Leftovers
Ability: Flash Fire
EVs: 252 HP / 96 SpA / 160 Spe
Modest Nature
- Magma Storm
- Sunny Day
- Solar Beam
- Earth Power