Mewtwo-Mega-Y @ Focus Sash  
Ability: Mold Breaker  
Shiny: Yes  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Lonely Nature  
IVs: 0 Atk  
- Spore  
- Shell Smash  
- Seed Flare  
- Stored Power  

Mewtwo-Mega-Y @ Focus Sash  
Ability: Triage  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Modest Nature  
IVs: 0 Atk  
- Spore  
- Shell Smash  
- Stored Power  
- Oblivion Wing  

Mewtwo-Mega-Y @ Focus Sash  
Ability: Simple  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Modest Nature  
IVs: 0 Atk  
- Spore  
- Shell Smash  
- Stored Power  
- Moongeist Beam