Chansey @ Eviolite  
Ability: Prankster  
EVs: 4 HP / 252 Def / 252 SpD  
Bold Nature  
IVs: 0 Atk  
- Transform  
- Soft-Boiled  
- Seismic Toss  
- Stealth Rock  

Swampert @ Swampertite  
Ability: Drizzle  
EVs: 252 Atk / 4 Def / 252 Spe  
Jolly Nature  
- Swords Dance  
- Waterfall  
- Earthquake  
- Ice Punch  

Ferrothorn @ Damp Rock  
Ability: Drizzle  
EVs: 252 HP / 252 Def / 4 SpD  
Impish Nature  
- Spikes  
- Power Whip  
- Parting Shot  
- Knock Off  

Volcanion @ Waterium Z  
Ability: Swift Swim  
EVs: 252 SpA / 4 SpD / 252 Spe  
Modest Nature  
IVs: 0 Atk  
- Tail Glow  
- Steam Eruption  
- Sludge Wave  
- Hidden Power [Grass]  

Thundurus-Therian @ Life Orb  
Ability: Triage  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Nasty Plot  
- Oblivion Wing  
- Thunder  
- Hidden Power [Ground]  

Tapu Koko @ Leftovers  
Ability: Mold Breaker  
EVs: 252 HP / 4 Atk / 252 Spe  
Jolly Nature  
- Lovely Kiss  
- Taunt  
- Nature's Madness  
- U-turn