Arceus-Bug @ Spooky Plate  
Ability: Unaware  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Modest Nature  
IVs: 0 Atk  
- Tail Glow  
- Boomburst  
- Recover  
- Judgment  

Gengar-Mega @ Spooky Plate  
Ability: Rattled  
EVs: 252 HP / 252 SpA / 252 SpD / 252 Spe  
Timid Nature  
IVs: 24 Def  
- Judgment  
- Transform  
- Counter  
- Baton Pass  

Diancie-Mega @ Choice Band  
Ability: Pixilate  
Happiness: 0  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Adamant Nature  
- Frustration  
- V-create  
- Sunsteel Strike  
- Crabhammer  

Shiftry @ Leftovers  
Ability: Flash Fire  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Careful Nature  
- Knock Off  
- Spore  
- U-turn  
- Soft-Boiled  

Chansey @ Eviolite  
Ability: Imposter  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Impish Nature  
- Fake Out  
- Whirlwind  
- Final Gambit  
- Roost  

Volcanion @ Leftovers  
Ability: Magic Bounce  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD  
Relaxed Nature  
IVs: 0 Spe  
- Core Enforcer  
- Shore Up  
- Spectral Thief  
- U-turn