Eternatus @ Black Sludge  
Ability: Corrosion  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Quiver Dance  
- Toxic  
- Sludge Bomb  
- Core Enforcer  

Celesteela @ Life Orb  
Ability: Triage  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Modest Nature  
IVs: 0 Atk  
- Nasty Plot  
- Oblivion Wing  
- Earth Power  
- Leech Seed  

Regigigas @ Toxic Orb  
Ability: Poison Heal  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Jolly Nature  
- Dragon Dance  
- Facade  
- Baton Pass  
- Spectral Thief  

Xerneas @ Expert Belt  
Ability: Pixilate  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Naive Nature  
- Boomburst  
- V-create  
- Precipice Blades  
- Diamond Storm  

Chansey (F) @ Eviolite  
Ability: Imposter  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Bold Nature  
IVs: 0 Atk  
- Jungle Healing  
- Topsy-Turvy  
- Metal Burst  
- Soft-Boiled  

Zamazenta-Crowned @ Rocky Helmet  
Ability: Unaware  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Careful Nature  
- Low Kick  
- Topsy-Turvy  
- Entrainment  
- Roost