Giratina @ Lum Berry  
Ability: Prankster  
EVs: 248 HP / 252 Def / 8 SpD  
Impish Nature  
IVs: 0 Atk  
- Curse  
- Haze  
- Recover  
- Dark Void  

Arceus-Fire @ Lum Berry  
Ability: Wonder Guard  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Dark Void  
- Boomburst  
- Baton Pass  
- Shell Smash  

Gengar-Mega @ Spooky Plate  
Ability: Mold Breaker  
EVs: 4 Def / 252 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Shell Smash  
- Judgment  
- Secret Sword  
- Dark Void  

Groudon-Primal @ Lum Berry  
Ability: Mold Breaker  
EVs: 248 HP / 252 Atk / 8 Def  
Adamant Nature  
- Spikes  
- V-create  
- Dark Void  
- Soft-Boiled  

Gengar-Mega @ Lum Berry  
Ability: Prankster  
EVs: 4 Atk / 252 SpA / 252 Spe  
Timid Nature  
- Dark Void  
- Substitute  
- Baton Pass  
- Copycat  

Diancie-Mega @ Pixie Plate  
Ability: Pixilate  
EVs: 252 Atk / 4 SpA / 252 Spe  
Naive Nature  
- Boomburst  
- Fake Out  
- Extreme Speed  
- Stealth Rock