Defensive (Diancie) @ Leftovers  
Ability: Regenerator  
EVs: 252 HP / 4 Def / 252 SpD  
Careful Nature  
- Stealth Rock  
- Diamond Storm  
- Body Press  
- Toxic

TR setter (Diancie) @ Mental Herb / Shuca Berry
Ability: Pixilate  
EVs: 252 HP / 252 Atk / 4 SpD  
Brave Nature  
IVs: 0 Spe  
- Explosion  
- Stealth Rock  
- Trick Room  
- Body Press / Diamond Storm