Rayquaza-Mega @ Leftovers  
Ability: Prankster  
EVs: 248 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Bold Nature  
- Lovely Kiss  
- Substitute  
- Baton Pass  
- Copycat  

Mewtwo-Mega-X @ Lum Berry  
Ability: Innards Out  
EVs: 248 HP / 252 Atk / 252 SpA / 252 Spe  
Lonely Nature  
IVs: 0 Def / 0 SpD  
- Photon Geyser  
- Close Combat  
- Moongeist Beam  
- Extreme Speed  

Cresselia (F) @ Lum Berry  
Ability: Wonder Guard  
EVs: 248 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Bold Nature  
IVs: 0 Atk  
- Defog  
- Parting Shot  
- Soft-Boiled  
- Haze  

Lopunny-Mega @ Lum Berry  
Ability: Wonder Guard  
EVs: 248 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Jolly Nature  
IVs: 0 Atk  
- Lovely Kiss  
- Stealth Rock  
- Haze  
- Magic Coat  

Gengar-Mega @ Focus Sash  
Ability: Magic Guard  
EVs: 248 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Moongeist Beam  
- Sludge Wave  
- Secret Sword  
- Shell Smash  

Mewtwo-Mega-X @ Choice Band  
Ability: Huge Power  
EVs: 248 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Jolly Nature  
- Photon Geyser  
- Sunsteel Strike  
- Extreme Speed  
- Trick