Registeel @ Leftovers  
Ability: Regenerator  
EVs: 252 HP / 4 Def / 252 SpD  
Careful Nature  
- Shield Slam  
- Stealth Rock  
- Body Press  
- Toxic / Iron Defense  

Registeel @ Leftovers  
Ability: Bulletproof  
EVs: 252 HP / 4 Def / 252 SpD  
Careful Nature  
- Shield Slam  
- Iron Defense  
- Rest  
- Sleep Talk