Volcanion @ Life Orb  
Ability: Magic Guard  
EVs: 4 Atk / 252 SpA / 252 Spe 
Hasty Nature  
- Steam Eruption  
- Flare Blitz  
- Earth Power  
- Sludge Bomb / Substitute / Defog  

Volcanion @ Choice Specs  
Ability: Primordial Sea / Swift Swim
EVs: 252 SpA / 4 SpD / 252 Spe  
Modest Nature  
IVs: 0 Atk  
- Weather Ball  
- Steam Eruption  
- Sludge Wave  
- Earth Power

Volcanion @ Choice Specs  
Ability: Desolate Land  
EVs: 4 HP / 252 SpA / 252 Spe  
Modest Nature  
IVs: 0 Atk  
- Weather Ball  
- Fire Blast  
- Earth Power  
- Sludge Bomb