Necrozma-Dusk-Mane @ Rocky Helmet  
Ability: Prism Armor  
EVs: 252 HP / 252 Def / 4 SpD  
Impish Nature  
- Sunsteel Strike  
- Knock Off  
- Morning Sun  
- Stealth Rock  

Eternatus @ Black Sludge  
Ability: Pressure  
EVs: 216 HP / 168 SpA / 124 Spe  
Modest Nature  
IVs: 0 Atk  
- Dynamax Cannon  
- Flamethrower  
- Substitute  
- Recover  

Yveltal @ Heavy-Duty Boots  
Ability: Dark Aura  
EVs: 248 HP / 12 SpD / 248 Spe  
Jolly Nature  
- Foul Play  
- Defog  
- Roost  
- Sucker Punch  

Calyrex-Shadow @ Life Orb  
Ability: As One (Spectrier)  
EVs: 4 Def / 252 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Astral Barrage  
- Psyshock  
- Baton Pass  
- Nasty Plot  

Kyogre @ Leftovers  
Ability: Drizzle  
EVs: 240 HP / 244 Def / 24 Spe  
Bold Nature  
IVs: 0 Atk  
- Scald  
- Roar  
- Calm Mind  
- Rest  

Ditto @ Choice Scarf  
Ability: Imposter  
EVs: 248 HP / 252 Def / 8 SpD  
Impish Nature  
- Transform