Aegislash @ Leftovers  
Ability: Magic Bounce  
EVs: 248 HP / 80 SpD / 180 Spe  
Calm Nature  
IVs: 0 Atk  
- Milk Drink  
- Substitute  
- Baton Pass  
- Curse  

Diancie-Mega @ Lum Berry  
Ability: Pixilate  
EVs: 248 HP / 252 Atk / 4 SpA / 4 Spe  
Brave Nature  
- Fake Out  
- Extreme Speed  
- Boomburst  
- Spikes  

Mewtwo-Mega-X @ Choice Scarf  
Ability: Arena Trap  
EVs: 252 Atk / 84 Def / 172 Spe  
Naughty Nature  
- Surf  
- Beat Up  
- Dragon Ascent  
- Close Combat  

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

Arceus @ Shed Shell  
Ability: Wonder Guard  
EVs: 248 HP / 252 Def / 8 SpD  
Impish Nature  
- U-turn  
- Taunt  
- Roost  
- Defog  

Kyogre-Primal @ Safety Goggles  
Ability: Wonder Guard  
EVs: 248 HP / 8 Def / 252 SpD  
Sassy Nature  
IVs: 0 Atk / 0 Spe  
- Whirlwind  
- Roost  
- Aromatherapy  
- Parting Shot