Nihilego @ Expert Belt  
Ability: Beast Boost  
EVs: 24 HP / 184 SpA / 48 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Sludge Wave  
- Power Gem  
- Hidden Power [Ice]  
- Thunder  

Pelipper @ Heavy-Duty Boots  
Ability: Drizzle  
EVs: 240 HP / 204 Def / 64 SpD  
Bold Nature  
IVs: 22 Spe  
- Defog  
- U-turn  
- Roost  
- Scald  

Swampert-Mega @ Swampertite  
Ability: Swift Swim  
EVs: 168 Atk / 88 Def / 252 Spe  
Jolly Nature  
- Stealth Rock  
- Earthquake  
- Liquidation  
- Flip Turn  

Ferrothorn @ Leftovers  
Ability: Iron Barbs  
EVs: 252 HP / 92 Def / 164 SpD  
Careful Nature  
- Knock Off  
- Spikes  
- Leech Seed  
- Thunder Wave  

Victini @ Choice Scarf  
Ability: Victory Star  
EVs: 252 HP / 4 Atk / 252 Spe  
Jolly Nature  
- Final Gambit  
- V-create  
- U-turn  
- Bolt Strike  

Kommo-o @ Kommonium Z  
Ability: Bulletproof  
EVs: 24 Atk / 232 SpA / 252 Spe  
Hasty Nature  
- Clangorous Soul  
- Clanging Scales  
- Flamethrower  
- Drain Punch