Blissey (F) @ Shed Shell  
Ability: Imposter  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD  
Relaxed Nature  
IVs: 0 Atk / 0 Spe  
- Heal Bell  
- Stealth Rock  
- Sheer Cold  
- Wish  

Pokestar Spirit @ Leftovers  
Ability: Wonder Guard  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Calm Nature  
IVs: 0 Atk  
- Spikes  
- Magic Coat  
- Curse  
- Recover  

Giratina @ Spooky Plate  
Ability: Magic Bounce  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD  
Relaxed Nature  
IVs: 0 Atk / 0 Spe  
- Judgment  
- Will-O-Wisp  
- Rapid Spin  
- Roost  

Gengar @ Shed Shell  
Ability: Mold Breaker  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Fissure  
- Shadow Ball  
- Rapid Spin  
- Pain Split  

Arceus @ Toxic Orb  
Ability: Poison Heal  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Jolly Nature  
- Swords Dance  
- Extreme Speed  
- Will-O-Wisp  
- Earthquake  

Skarmory @ Shed Shell  
Ability: Wonder Guard  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD  
Sassy Nature  
IVs: 0 Spe  
- Magic Coat  
- Knock Off  
- Baton Pass  
- Soft-Boiled