Necrozma-Dusk-Mane @ Weakness Policy  
Ability: Prism Armor  
EVs: 248 HP / 16 Def / 72 SpD / 172 Spe  
Jolly Nature  
- Dragon Dance  
- Sunsteel Strike  
- Photon Geyser  
- Earthquake  

Mew @ Leftovers  
Ability: Synchronize  
EVs: 248 HP / 176 Def / 84 SpD  
Impish Nature  
- Will-O-Wisp  
- Spikes  
- Soft-Boiled  
- U-turn  

Eternatus @ Black Sludge  
Ability: Pressure  
EVs: 64 HP / 252 Def / 60 SpA / 132 Spe  
Modest Nature  
IVs: 0 Atk  
- Flamethrower  
- Recover  
- Reflect  
- Dynamax Cannon  

Rotom-Heat @ Heavy-Duty Boots  
Ability: Levitate  
EVs: 252 HP / 252 Def / 4 SpD  
Bold Nature  
IVs: 0 Atk  
- Will-O-Wisp  
- Volt Switch  
- Overheat  
- Pain Split  

Zacian-Crowned @ Rusted Sword  
Ability: Intrepid Sword  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Swords Dance  
- Close Combat  
- Play Rough  
- Crunch  

Tyranitar @ Leftovers  
Ability: Sand Stream  
EVs: 248 HP / 248 SpD / 12 Spe  
Careful Nature  
- Stealth Rock  
- Thunder Wave  
- Earthquake  
- Rest