Ferrothorn @ Leftovers  
Ability: Iron Barbs  
EVs: 252 HP / 4 Atk / 252 Def  
Relaxed Nature  
- Spikes  
- Gyro Ball  
- Knock Off  
- Leech Seed  

Tornadus-Therian (M) @ Heavy-Duty Boots  
Ability: Regenerator  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
- Hurricane  
- Heat Wave  
- Defog  
- U-turn  

Kyogre @ Choice Specs  
Ability: Drizzle  
EVs: 252 SpA / 4 SpD / 252 Spe  
Modest Nature  
IVs: 0 Atk  
- Water Spout  
- Origin Pulse  
- Thunder  
- Ice Beam  

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

Slowbro @ Heavy-Duty Boots  
Ability: Regenerator  
EVs: 252 HP / 4 Def / 252 SpD  
Calm Nature  
IVs: 0 Atk  
- Teleport  
- Scald  
- Future Sight  
- Slack Off  

Volcanion @ Choice Scarf  
Ability: Water Absorb  
EVs: 4 Def / 252 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Steam Eruption  
- Fire Blast  
- Earth Power  
- Defog