Nihilego @ Black Sludge  
Ability: Beast Boost  
EVs: 80 Def / 176 SpA / 252 Spe  
Timid Nature  
- Stealth Rock  
- Power Gem  
- Knock Off  
- Sludge Bomb  

Cobalion @ Leftovers  
Ability: Justified  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Swords Dance  
- Substitute  
- Iron Head  
- Close Combat  

Thundurus-Therian (M) @ Heavy-Duty Boots  
Ability: Volt Absorb  
EVs: 4 Def / 252 SpA / 252 Spe  
Timid Nature  
- Knock Off  
- Volt Switch  
- Focus Blast  
- Defog  

Amoonguss @ Rocky Helmet  
Ability: Regenerator  
EVs: 248 HP / 212 Def / 40 SpD / 8 Spe  
Bold Nature  
IVs: 0 Atk  
- Spore  
- Giga Drain  
- Sludge Bomb  
- Foul Play  

Gyarados @ Sitrus Berry  
Ability: Moxie  
EVs: 252 Atk / 4 SpD / 252 Spe  
Adamant Nature  
- Dragon Dance  
- Waterfall  
- Ice Fang  
- Power Whip  

Hydreigon @ Choice Scarf  
Ability: Levitate  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
- Draco Meteor  
- Dark Pulse  
- U-turn  
- Fire Blast