Pyukumuku @ Leftovers  
Ability: Unaware  
EVs: 252 HP / 252 Def / 4 SpD  
Bold Nature  
IVs: 0 Atk  
- Block  
- Spite  
- Recover  
- Rest

Other viable moves:
- I dislike using any other set on this because then I just prefer Quagsire oftentimes, BUT it can be justified on very specific team structures, so...
- Toxic
- Taunt
- Protect
- Soak