Chansey @ Eviolite  
Ability: Natural Cure  
EVs: 248 HP / 252 Def / 8 SpD  
Bold Nature  
IVs: 0 Atk  
- Seismic Toss
- Soft-Boiled

Other viable moves (listed roughly in terms of importance/usage):
- Toxic
- Stealth Rock
- Heal Bell
- Protect
- Wish
- Confide