Diancie @ Leftovers
Ability: Regenerator
EVs: 248 HP / 252 SpD / 8 Spe
Careful Nature
- Diamond Storm
- Body Press
- Stealth Rock
- Heal Bell

Diancie @ Life Orb  
Ability: Triage  
EVs: 248 HP / 8 Def / 252 SpA  
Modest Nature  
IVs: 0 Atk  
- Calm Mind  
- Draining Kiss  
- Power Gem  
- Body Press