Mewtwo-Mega-X @ Life Orb  
Ability: Technician  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Hasty Nature  
- Storm Throw  
- Frost Breath  
- Stealth Rock  
- Bonemerang  

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

Mewtwo-Mega-X @ Safety Goggles  
Ability: Prankster  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Jolly Nature  
- Strength Sap  
- Low Kick  
- Destiny Bond  
- Spore  

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  
- Psychic  
- Ice Beam  
- Focus Blast  
- Defog  

Slowbro-Mega @ Darkinium Z  
Ability: Regenerator  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD  
Sassy Nature  
IVs: 0 Spe  
- Will-O-Wisp  
- Spectral Thief  
- Shore Up  
- Parting Shot