Mewtwo-Mega-Y @ Leppa Berry  
Ability: Innards Out  
EVs: 252 HP / 252 Atk / 252 SpA / 252 Spe  
Hasty Nature  
IVs: 0 Def / 0 SpD  
- Shell Smash  
- Let's Snuggle Forever  
- Moongeist Beam  
- Searing Sunraze Smash  

Kartana @ Focus Sash  
Ability: Huge Power  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Adamant Nature  
- Searing Sunraze Smash  
- Sunsteel Strike  
- Shell Smash  
- Plasma Fists  

Gengar-Mega @ Choice Scarf  
Ability: Parental Bond  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Modest Nature  
- Moongeist Beam  
- U-turn  
- Sludge Wave  
- Ice Beam  

Blissey (F) @ Shed Shell  
Ability: Innards Out  
EVs: 252 HP / 252 SpA / 252 SpD  
Gentle Nature  
IVs: 0 Atk / 0 Def / 0 Spe  
- Defog  
- Shore Up  
- Whirlwind  
- Spikes  

Lunala @ Lunalium Z  
Ability: Innards Out  
EVs: 252 HP / 252 SpA / 252 Spe  
Rash Nature  
IVs: 0 Def / 0 SpD  
- Shell Smash  
- Moongeist Beam  
- Photon Geyser  
- Bug Buzz  

Blissey (F) @ Shed Shell  
Ability: Innards Out  
EVs: 252 HP / 252 SpA / 252 SpD  
Gentle Nature  
IVs: 0 Atk / 0 Def / 0 Spe  
- Defog  
- Shore Up  
- Transform  
- Baton Pass