Mewtwo-Mega-X @ Choice Scarf  
Ability: Shadow Tag  
EVs: 252 Atk / 84 Def / 172 Spe  
Naughty Nature  
- Ice Punch  
- Low Kick  
- Dragon Ascent  
- Surf  

Mewtwo-Mega-X @ Shed Shell  
Ability: Huge Power  
EVs: 252 Atk / 212 Def / 44 Spe  
Adamant Nature  
- Gear Grind  
- Petal Blizzard  
- Sacred Fire  
- Shadow Sneak  

Audino-Mega @ Safety Goggles  
Ability: Wonder Guard  
EVs: 248 HP / 252 Def  
Relaxed Nature  
IVs: 0 Atk / 0 Spe  
- Parting Shot  
- Roost  
- Defog  
- Stealth Rock  

Arceus @ Shed Shell  
Ability: Wonder Guard  
EVs: 248 HP / 128 Def / 132 SpD  
Bold Nature  
IVs: 0 Atk  
- Whirlwind  
- Roost  
- Parting Shot  
- Aromatherapy  

Giratina @ Safety Goggles  
Ability: Prankster  
EVs: 248 HP / 252 Def / 8 SpD  
Bold Nature  
IVs: 0 Atk  
- Spore  
- Encore  
- Roost  
- Curse  

Rayquaza-Mega @ Sky Plate  
Ability: Mold Breaker  
EVs: 208 HP / 252 SpA / 48 Spe  
Modest Nature  
IVs: 0 Atk  
- Substitute  
- Quiver Dance  
- Oblivion Wing  
- Dark Void