Mamoswine @ Focus Sash  
Ability: Oblivious  
EVs: 252 Atk / 4 Def / 252 Spe  
Jolly Nature  
- Earthquake  
- Endeavor  
- Ice Shard  
- Stealth Rock  

Ferrothorn @ Leftovers  
Ability: Iron Barbs  
EVs: 252 HP / 88 Def / 168 SpD  
Relaxed Nature  
IVs: 0 Spe  
- Leech Seed  
- Spikes  
- Gyro Ball  
- Power Whip  

Gyarados-Mega @ Gyaradosite  
Ability: Intimidate  
EVs: 252 Atk / 4 Def / 252 Spe  
Jolly Nature  
- Waterfall  
- Crunch  
- Earthquake  
- Dragon Dance  

Excadrill @ Choice Scarf  
Ability: Mold Breaker  
EVs: 252 Atk / 4 Def / 252 Spe  
Jolly Nature  
- Earthquake  
- Iron Head  
- Rock Slide  
- Rapid Spin  

Volcarona @ Psychium Z  
Ability: Flame Body  
EVs: 4 Def / 252 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Fiery Dance  
- Bug Buzz  
- Psychic  
- Quiver Dance  

Tapu Koko @ Expert Belt  
Ability: Electric Surge  
EVs: 4 Def / 252 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Thunderbolt  
- Volt Switch  
- Dazzling Gleam  
- Hidden Power [Ice]