Mewtwo-Mega-X @ Terrain Extender  
Ability: Psychic Surge  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Jolly Nature  
IVs: 0 SpA  
- Stealth Rock  
- Light That Burns the Sky  
- Thousand Arrows  
- Parting Shot  

Mewtwo-Mega-X @ Expert Belt  
Ability: Huge Power  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Naughty Nature  
- Photon Geyser  
- Searing Shot  
- Thousand Arrows  
- Plasma Fists  

Mewtwo-Mega-X @ Focus Sash  
Ability: Huge Power  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Adamant Nature  
IVs: 0 SpA  
- Shell Smash  
- Photon Geyser  
- Searing Sunraze Smash  
- Ice Shard  

Mewtwo-Mega-X @ Leftovers  
Ability: Prankster  
EVs: 252 HP / 252 Def / 252 SpD / 252 Spe  
Calm Nature  
IVs: 0 Atk  
- Substitute  
- Tailwind  
- Destiny Bond  
- Baton Pass  

Mewtwo-Mega-X @ Leppa Berry  
Ability: Huge Power  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Jolly Nature  
IVs: 0 SpA  
- Extreme Evoboost  
- Photon Geyser  
- V-create  
- Icicle Spear  

Blissey (F) @ Figy Berry  
Ability: Innards Out  
EVs: 252 HP / 252 Atk / 252 SpD / 252 Spe  
Hasty Nature  
IVs: 0 Def  
- Slack Off  
- Spikes  
- Spectral Thief  
- Baton Pass