Mewtwo-Mega-Y @ Choice Scarf  
Ability: Innards Out  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Timid Nature  
- Menacing Moonraze Maelstrom  
- Light That Burns the Sky  
- Photon Geyser  
- Trick  

Yveltal @ Leppa Berry  
Ability: Innards Out  
EVs: 252 HP / 252 Atk / 252 SpD / 252 Spe  
Lonely Nature  
IVs: 0 Def  
- Shell Smash  
- Power Trip  
- Photon Geyser  
- Light That Burns the Sky  

Giratina-Origin @ Griseous Orb  
Ability: Innards Out  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Modest Nature  
IVs: 0 Atk  
- Shell Smash  
- Moongeist Beam  
- Imprison  
- Shore Up  

Deoxys-Attack @ Focus Sash  
Ability: Prankster  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Hasty Nature  
- Destiny Bond  
- Defog  
- Light That Burns the Sky  
- Copycat  

Regigigas @ Leppa Berry  
Ability: Wonder Guard  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Adamant Nature  
- Recycle  
- Shore Up  
- Extreme Evoboost  
- Sunsteel Strike  

Chansey (F) @ Lum Berry  
Ability: Innards Out  
EVs: 252 HP / 252 SpD / 252 Spe  
Gentle Nature  
IVs: 0 Atk / 0 Def  
- Magic Coat  
- Shore Up  
- Parting Shot  
- Whirlwind