Diancie-Mega @ Shed Shell  
Ability: Pixilate  
EVs: 248 HP / 252 Atk / 4 SpA / 4 Spe  
Brave Nature  
- Fake Out  
- Extreme Speed  
- Boomburst  
- Stealth Rock  

Aegislash @ Leftovers  
Ability: Magic Bounce  
EVs: 248 HP / 80 SpD / 180 Spe  
Calm Nature  
- Milk Drink  
- Substitute  
- Baton Pass  
- Curse  

Rayquaza-Mega @ Sky Plate  
Ability: Mold Breaker  
EVs: 200 HP / 252 SpA / 56 Spe  
Modest Nature  
IVs: 0 Atk  
- Quiver Dance  
- Taunt  
- Oblivion Wing  
- Substitute  

Rayquaza-Mega @ Mental Herb  
Ability: Mold Breaker  
EVs: 60 HP / 252 SpA / 4 SpD / 192 Spe  
Modest Nature  
IVs: 0 Atk  
- Shell Smash  
- Oblivion Wing  
- Secret Sword  
- Dark Void  

Kyogre-Primal @ Leftovers  
Ability: Wonder Guard  
EVs: 248 HP / 252 Def / 8 SpA  
Bold Nature  
IVs: 0 Atk  
- Substitute  
- Baton Pass  
- Scald  
- Magic Coat  

Blissey (F) @ Shed Shell  
Ability: Wonder Guard  
EVs: 252 HP / 4 Def / 252 SpD  
Sassy Nature  
IVs: 0 Atk / 0 Spe  
- Baton Pass  
- Defog  
- Aromatherapy  
- Recover