homecoming (Mewtwo-Mega-X) @ Leppa Berry  
Ability: Huge Power  
EVs: 252 HP / 252 Atk / 252 Def / 176 SpA / 252 SpD / 252 Spe  
Adamant Nature  
- First Impression  
- Light That Burns the Sky  
- Photon Geyser  
- Close Combat  

off ur rocker (Celesteela) @ Shed Shell  
Ability: Magic Bounce  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Impish Nature  
- Defog  
- Milk Drink  
- Anchor Shot  
- Beak Blast  

destroying angel (Groudon-Primal) @ Safety Goggles  
Ability: Wonder Guard  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD  
Relaxed Nature  
IVs: 0 Atk / 0 Spe  
- Parting Shot  
- Lava Plume  
- Roost  
- Core Enforcer  

judgement day (Blissey) (F) @ Fist Plate  
Ability: Imposter  
EVs: 252 HP / 252 Def / 252 SpD / 252 Spe  
Calm Nature  
IVs: 0 Atk  
- Whirlwind  
- Spikes  
- Baneful Bunker  
- Wish  

leave it to me (Mewtwo-Mega-Y) @ Earth Plate  
Ability: Protean  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Hasty Nature  
- Judgment  
- Searing Shot  
- Sunsteel Strike  
- Freeze-Dry  

to pieces (Muk-Alola) @ Air Balloon  
Ability: Wonder Guard  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD  
Sassy Nature  
IVs: 0 Spe  
- Baton Pass  
- Spectral Thief  
- Soft-Boiled  
- Stealth Rock