Wall (Gastrodon) @ Leftovers  
Ability: Dauntless Shield / Regenerator / Unaware / Sap Sipper / Magic Bounce
EVs: 252 HP / 252 Def / 4 SpD  or 252 HP / 4 Def / 252 SpD Sassy Nature
Relaxed Nature  
- Recover  
- Scald  
- Toxic / Haze
- Earthquake / Scorching Sands