Mewtwo-Mega-X @ Focus Sash  
Ability: Huge Power  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Jolly Nature  
IVs: 0 SpA  
- V-create  
- Searing Sunraze Smash  
- Light That Burns the Sky  
- Let's Snuggle Forever  

Mewtwo-Mega-X @ Life Orb  
Ability: Pure Power  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Jolly Nature  
IVs: 0 SpA  
- Photon Geyser  
- Knock Off  
- Play Rough  
- Extreme Speed  

Mewtwo-Mega-Y @ Focus Sash  
Ability: Magic Guard  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Modest Nature  
IVs: 0 Atk  
- Mind Blown  
- Light of Ruin  
- Extreme Evoboost  
- Spore  

Chansey (M) @ Choice Scarf  
Ability: Imposter  
EVs: 252 HP / 252 Def / 252 SpD / 252 Spe  
Relaxed Nature  
IVs: 0 Atk / 0 SpA / 0 Spe  
- Perish Song  
- Healing Wish  
- Parting Shot  
- Magic Coat  

Chansey (F) @ Leftovers  
Ability: Innards Out  
EVs: 252 HP / 252 Atk / 252 Spe  
Naive Nature  
IVs: 0 HP / 0 Atk / 0 Def / 0 SpA / 0 SpD  
- Magic Coat  
- Soft-Boiled  
- Stealth Rock  
- Spikes  

Ampharos @ Ampharosite  
Ability: Wonder Guard  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Adamant Nature  
- Shell Smash  
- Block  
- Power Trip  
- Baton Pass