Some quick ideas I had:
Iron Jugulis @ Hurricane
Ability: Quark Drive
Tera Type: Water
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
- Hydro Pump
- Focus Blast
- Air Slash
- U-turn
With Hurricane as the item, all moves become perfectly accurate (+ a 30% chance to confuse) in the Rain so Jugulis is able to spam to its heart's content. This sort of set also works with Thunder or Blizzard, notably Gholdengo can run this as well.
Lurantis @ Leaf Storm
Ability: Contrary
Tera Type: Flying
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
- Bullet Seed
- Giga Drain
- Tera Blast
- Substitute
With 3 hits from Bullet Seed, Lurantis will have maxed out its Special Attack stat. Lurantis has zero coverage moves so Tera Blast is a huge help, Flying provides a nice mix of offensive coverage and defensive utility but other options like Fire, Rock, Ghost, and Dark work as well.
Tyranitar @ Assurance
Ability: Sand Stream
Tera Type: Rock
EVs: 252 Atk / 4 SpD / 252 Spe
Adamant Nature
- Rock Blast
- Earthquake
- Dragon Dance
- Substitute
With Assurance as an item, Rock Blast will have its damaged doubled after the first hit so it will be 25, 50, 50, 50, 50, meaning it has a minimum BP of 75 and maximum of 225. Combined with Ttar's 134 attack and Dragon Dance, this turns into a terrifyingly strong STAB move.
Iron Moth @ Venoshock
Ability: Quark Drive
Tera Type: Fairy
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Sludge Wave
- Fiery Dance
- Morning Sun
- Toxic Spikes
With poison support from Toxic Spikes or maybe a Poison Fang mon, Iron Moth is able to double the power of all its moves on top of its 140 SPA. Really simple, but it hits extremely hard and loves being paired with Glimmora due to the lack of boots.
Dragapult @ Hex
Ability: Infiltrator
Tera Type: Dragon
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
- Draco Meteor
- Shadow Ball
- Thunder Wave
- U-turn
Very similar to the last set, but has the advantage of Hex being way easier to activate and being on Dragapult. Extremely quick and able to hit anything statused with a 260 BP Draco Meteor.
Garganacl @ Ancient Power
Ability: Purifying Salt
Tera Type: Water
EVs: 252 HP / 4 Def / 252 SpD
Careful Nature
- Salt Cure
- Rock Blast
- Earthquake
- Recover
Finally, a slot machine Pokemon. Spam Rock Blasts to see how much RNGesus smiles upon you this day. With a 10% chance to miss, a 15% chance to hit 5 times, and each of those with a 10% chance to boost all of your stats. Well? Are you feeling lucky?
Iron Jugulis @ Hurricane
Ability: Quark Drive
Tera Type: Water
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
- Hydro Pump
- Focus Blast
- Air Slash
- U-turn
With Hurricane as the item, all moves become perfectly accurate (+ a 30% chance to confuse) in the Rain so Jugulis is able to spam to its heart's content. This sort of set also works with Thunder or Blizzard, notably Gholdengo can run this as well.
Lurantis @ Leaf Storm
Ability: Contrary
Tera Type: Flying
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
- Bullet Seed
- Giga Drain
- Tera Blast
- Substitute
With 3 hits from Bullet Seed, Lurantis will have maxed out its Special Attack stat. Lurantis has zero coverage moves so Tera Blast is a huge help, Flying provides a nice mix of offensive coverage and defensive utility but other options like Fire, Rock, Ghost, and Dark work as well.
Tyranitar @ Assurance
Ability: Sand Stream
Tera Type: Rock
EVs: 252 Atk / 4 SpD / 252 Spe
Adamant Nature
- Rock Blast
- Earthquake
- Dragon Dance
- Substitute
With Assurance as an item, Rock Blast will have its damaged doubled after the first hit so it will be 25, 50, 50, 50, 50, meaning it has a minimum BP of 75 and maximum of 225. Combined with Ttar's 134 attack and Dragon Dance, this turns into a terrifyingly strong STAB move.
Iron Moth @ Venoshock
Ability: Quark Drive
Tera Type: Fairy
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
IVs: 0 Atk
- Sludge Wave
- Fiery Dance
- Morning Sun
- Toxic Spikes
With poison support from Toxic Spikes or maybe a Poison Fang mon, Iron Moth is able to double the power of all its moves on top of its 140 SPA. Really simple, but it hits extremely hard and loves being paired with Glimmora due to the lack of boots.
Dragapult @ Hex
Ability: Infiltrator
Tera Type: Dragon
EVs: 252 SpA / 4 SpD / 252 Spe
Timid Nature
- Draco Meteor
- Shadow Ball
- Thunder Wave
- U-turn
Very similar to the last set, but has the advantage of Hex being way easier to activate and being on Dragapult. Extremely quick and able to hit anything statused with a 260 BP Draco Meteor.
Garganacl @ Ancient Power
Ability: Purifying Salt
Tera Type: Water
EVs: 252 HP / 4 Def / 252 SpD
Careful Nature
- Salt Cure
- Rock Blast
- Earthquake
- Recover
Finally, a slot machine Pokemon. Spam Rock Blasts to see how much RNGesus smiles upon you this day. With a 10% chance to miss, a 15% chance to hit 5 times, and each of those with a 10% chance to boost all of your stats. Well? Are you feeling lucky?