Blissey (F) @ Heavy-Duty Boots / Leftovers
Ability: Regenerator / Magic Bounce
EVs: 252 HP / 252 Def / 4 SpD  
Sassy Nature  
IVs: 0 Spe  
- Teleport
- Soft-Boiled 
- Seismic Toss / Fire Blast 
- Toxic / Thunder Wave / Stealth Rock / Counter