Mewtwo-Mega-X @ Focus Sash  
Ability: Dazzling  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Adamant Nature  
- Shell Smash  
- Spectral Thief  
- Photon Geyser  
- Close Combat  

Mewtwo-Mega-Y @ Life Orb  
Ability: Sheer Force  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Tail Glow  
- Psychic  
- Earth Power  
- Moonblast  

Mewtwo-Mega-Y @ Lum Berry  
Ability: No Guard  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Zap Cannon  
- Entrainment  
- Stealth Rock  
- Inferno  

Mewtwo-Mega-X @ Choice Band  
Ability: Adaptability  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Jolly Nature  
- Photon Geyser  
- Close Combat  
- U-turn  
- Spectral Thief  

Mewtwo-Mega-X @ Never-Melt Ice  
Ability: Refrigerate  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Hasty Nature  
- Boomburst  
- Rapid Spin  
- Photon Geyser  
- Close Combat  

Mewtwo-Mega-Y @ Safety Goggles  
Ability: Prankster  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Calm Nature  
- Strength Sap  
- Destiny Bond  
- Defog  
- Photon Geyser