Mewtwo-Mega-Y @ Terrain Extender  
Ability: Psychic Surge  
Shiny: Yes  
EVs: 248 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Spore  
- Photon Geyser  
- Stealth Rock  
- U-turn  

Deoxys-Attack @ Choice Scarf  
Ability: Arena Trap  
Shiny: Yes  
EVs: 248 HP / 252 Atk / 252 SpA / 252 SpD / 252 Spe  
Lonely Nature  
IVs: 0 Def  
- Let's Snuggle Forever  
- Malicious Moonsault  
- Searing Sunraze Smash  
- Light That Burns the Sky  

Mewtwo-Mega-Y @ Focus Sash  
Ability: No Guard  
Shiny: Yes  
EVs: 248 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Sing  
- Sheer Cold  
- Photon Geyser  
- Gastro Acid  

Mewtwo-Mega-X @ Focus Sash  
Ability: Wonder Guard  
Shiny: Yes  
EVs: 248 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Jolly Nature  
- First Impression  
- Photon Geyser  
- Shell Smash  
- Close Combat  

Mewtwo-Mega-Y @ Choice Specs  
Ability: Parental Bond  
Shiny: Yes  
EVs: 248 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Moongeist Beam  
- Photon Geyser  
- Secret Sword  
- Bug Buzz  

Blissey (F) @ Wiki Berry  
Ability: Innards Out  
Shiny: Yes  
EVs: 252 HP / 252 Atk / 252 SpA / 252 SpD  
Gentle Nature  
IVs: 0 Def / 0 Spe  
- Shore Up  
- Whirlwind  
- Magic Coat  
- Defog