Necrozma-Dusk-Mane @ Weakness Policy  
Ability: Prism Armor  
EVs: 252 HP / 252 Atk / 4 SpD  
Adamant Nature  
- Sunsteel Strike  
- Earthquake  
- Morning Sun  
- Dragon Dance  

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

Marshadow @ Focus Sash  
Ability: Technician  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Spectral Thief  
- Shadow Sneak  
- Close Combat  
- Swagger  

Yveltal @ Heavy-Duty Boots  
Ability: Dark Aura  
EVs: 4 HP / 252 Atk / 252 Spe  
Jolly Nature  
- Knock Off  
- Sucker Punch  
- Roost  
- Taunt  

Calyrex-Shadow @ Focus Sash  
Ability: As One (Spectrier)  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Astral Barrage  
- Psyshock  
- Nasty Plot  
- Pollen Puff  

Eternatus @ Power Herb  
Ability: Pressure  
EVs: 156 HP / 100 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Meteor Beam  
- Dynamax Cannon  
- Toxic  
- Flamethrower