Diancie @ Diancite  
Ability: Simple  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Hasty Nature  
- Extreme Evoboost  
- Moonblast  
- Sunsteel Strike  
- Moongeist Beam  

Xerneas @ Leppa Berry  
Ability: Innards Out  
EVs: 252 HP / 252 Atk / 252 SpA / 252 Spe  
Hasty Nature  
IVs: 0 Def / 0 SpD  
- Shell Smash  
- Power Trip  
- Searing Sunraze Smash  
- Menacing Moonraze Maelstrom  

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

Mewtwo-Mega-X @ Leppa Berry  
Ability: Huge Power  
EVs: 252 HP / 252 Atk / 252 Def / 76 SpA / 252 SpD / 252 Spe  
Jolly Nature  
- Light That Burns the Sky  
- Photon Geyser  
- First Impression  
- Sunsteel Strike  

Kyurem-Black @ Focus Sash  
Ability: Magic Bounce  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Naive Nature  
- Shell Smash  
- Catastropika  
- Freeze-Dry  
- Sunsteel Strike  

im dooming it (Houndoom-Mega) @ Splash Plate  
Ability: Wonder Guard  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Modest Nature  
- Shell Smash  
- Judgment  
- Recover  
- Photon Geyser