Cloyster @ Leftovers  
Ability: Shell Armor  
EVs: 252 HP / 4 Atk / 252 Def  
Relaxed Nature  
- Spikes  
- Surf  
- Ice Beam  
- Explosion  

Cloyster @ Leftovers  
Ability: Shell Armor  
EVs: 252 HP / 4 Atk / 8 SpA / 244 SpD  
Sassy Nature  
- Spikes  
- Ice Beam  
- Rapid Spin  
- Explosion