oceanic operatta (Primarina) @ Choice Specs  
Ability: Pixilate  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Modest Nature  
IVs: 0 Atk  
- Boomburst  
- Surf  
- Volt Switch  
- Trick  

Eternatus @ Life Orb  
Ability: Sheer Force  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Sludge Wave  
- Dynamax Cannon  
- Earth Power  
- Taunt  

Zekrom @ Toxic Orb  
Ability: Poison Heal  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Adamant Nature  
- Shift Gear  
- Dragon Darts  
- Bolt Beak  
- Stealth Rock  

Snorlax @ Toxic Orb  
Ability: Poison Heal  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Careful Nature  
- Facade  
- Shift Gear  
- Earthquake  
- King's Shield  

Seismitoad @ Leftovers  
Ability: Fur Coat  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Bold Nature  
IVs: 0 Atk  
- Earth Power  
- Recover  
- Defog  
- Teleport  

Zamazenta-Crowned @ Leftovers  
Ability: Prankster  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Careful Nature  
IVs: 0 Atk  
- Body Press  
- Recover  
- Teleport  
- Topsy-Turvy