Rotom @ Float Stone  
Ability: Levitate  
EVs: 252 HP / 252 Atk  
IVs: 0 Atk  
- Substitute  
- Shadow Ball  
- Thunder Wave  
- Confuse Ray  

Eternatus @ Black Sludge  
Ability: Pressure  
EVs: 252 HP / 252 Atk  
IVs: 0 Atk  
- Dynamax Cannon  
- Draco Meteor  
- Flamethrower  
- Sludge Bomb  

Gengar (M) @ Heavy-Duty Boots  
Ability: Cursed Body  
Shiny: Yes  
Gigantamax: Yes  
EVs: 4 HP / 252 Atk / 252 Def  
IVs: 0 Atk  
- Destiny Bond  
- Shadow Ball  
- Focus Blast  
- Thunderbolt  

Mimikyu @ Life Orb  
Ability: Disguise  
EVs: 252 HP / 4 Atk / 252 Spe  
- Shadow Sneak  
- Play Rough  
- Wood Hammer  
- Swords Dance  

Umbreon @ Leftovers  
Ability: Synchronize  
EVs: 252 Def / 4 SpA / 252 Spe  
IVs: 0 Atk  
- Dark Pulse  
- Psychic  
- Confuse Ray  
- Moonlight  

Toxapex @ Leftovers  
Ability: Merciless  
EVs: 4 Def / 252 SpA / 252 Spe  
IVs: 0 Atk  
- Scald  
- Sludge Wave  
- Baneful Bunker  
- Recover