Cloyster @ King's Rock  
Ability: Skill Link  
EVs: 252 Atk / 4 SpD / 252 Spe  
Adamant Nature  
- Rock Blast  
- Icicle Spear  
- Ice Shard  
- Shell Smash  

Tapu Koko @ Heavy-Duty Boots  
Ability: Electric Surge  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Defog  
- Volt Switch  
- Dazzling Gleam  
- Taunt  

Polteageist @ Focus Sash  
Ability: Weak Armor  
EVs: 252 SpA / 4 SpD / 252 Spe  
Modest Nature  
IVs: 0 Atk  
- Shell Smash  
- Shadow Ball  
- Stored Power  
- Giga Drain  

Blastoise @ Focus Sash  
Ability: Torrent  
EVs: 252 SpA / 4 SpD / 252 Spe  
Modest Nature  
IVs: 0 Atk  
- Shell Smash  
- Ice Beam  
- Terrain Pulse  
- Surf  

Melmetal @ Choice Band  
Ability: Iron Fist  
EVs: 252 HP / 252 Atk / 4 SpD  
Adamant Nature  
- Double Iron Bash  
- Earthquake  
- Ice Punch  
- Superpower  

Chansey (F) @ Eviolite  
Ability: Natural Cure  
EVs: 248 HP / 252 Def / 8 SpD  
Bold Nature  
- Toxic  
- Seismic Toss  
- Soft-Boiled  
- Counter