Groudon @ Toxic Orb
Ability: Poison Heal
EVs: 248 HP / 252 Atk / 8 Spe
Adamant Nature
- Shift Gear
- Sacred Fire
- Thousand Arrows
- Substitute

Hoopa-Unbound @ Leftovers
Ability: Mold Breaker
EVs: 252 HP / 252 Def / 4 SpD
Relaxed Nature
- Pursuit
- Magma Storm
- Taunt
- Recover

Swampert-Mega @ Rocky Helmet
Ability: Magic Bounce
EVs: 252 HP / 252 Def / 4 SpD
Impish Nature
- Wish
- King's Shield
- Sucker Punch
- Thousand Arrows

Rayquaza-Mega @ Sharp Beak
Ability: Aerilate
EVs: 252 Atk / 4 SpA / 252 Spe
Hasty Nature
- Fake Out
- Boomburst
- Extreme Speed
- Poison Fang

Kyogre @ Assault Vest
Ability: Regenerator
EVs: 248 HP / 252 Def / 8 SpA
Relaxed Nature
- Volt Switch
- Rapid Spin
- Scald
- Nuzzle

Shedinja @ Lum Berry
Ability: Sturdy
EVs: 252 Atk / 4 SpA / 252 Spe
Naive Nature
- Endeavor
- Ice Shard
- Whirlpool
- Recycle