Xerneas @ Leftovers  
Ability: Wonder Guard  
EVs: 248 HP / 8 Def / 252 SpA  
Quiet Nature  
IVs: 0 Atk / 0 Spe  
- Minimize  
- Substitute  
- Moonblast  
- Baton Pass  

Groudon-Primal @ Lum Berry  
Ability: Mold Breaker  
Shiny: Yes  
EVs: 248 HP / 252 Atk / 8 Def  
Adamant Nature  
- V-create  
- Thousand Arrows  
- Extreme Speed  
- Shell Smash  

Giratina @ Safety Goggles  
Ability: Prankster  
Shiny: Yes  
EVs: 248 HP / 252 Def / 8 SpD  
Bold Nature  
IVs: 0 Atk  
- Spore  
- Encore  
- Curse  
- Recover  

Arceus @ Spooky Plate  
Ability: Mold Breaker  
EVs: 40 HP / 252 SpA / 216 Spe  
Modest Nature  
IVs: 0 Atk  
- Shell Smash  
- Boomburst  
- Judgment  
- Substitute  

Gyarados-Mega @ Lum Berry  
Ability: Huge Power  
EVs: 252 HP / 252 Atk / 4 Def  
Adamant Nature  
- Pursuit  
- Trick-or-Treat  
- Knock Off  
- Water Shuriken  

Registeel @ Leftovers  
Ability: Wonder Guard  
Shiny: Yes  
EVs: 252 HP / 4 Def / 252 SpD  
Calm Nature  
IVs: 0 Atk  
- Stealth Rock  
- Defog  
- Aromatherapy  
- Recover