Eternatus @ Shuca Berry  
Ability: Pressure  
EVs: 224 HP / 240 SpD / 44 Spe  
Modest Nature  
IVs: 0 Atk  
- Dynamax Cannon  
- Flamethrower  
- Toxic  
- Recover  

Mew @ Colbur Berry  
Ability: Synchronize  
EVs: 252 HP / 4 Def / 252 Spe  
Timid Nature  
- Transform  
- Imprison  
- Block  
- U-turn  

Calyrex-Shadow @ Choice Scarf  
Ability: As One (Spectrier)  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Astral Barrage  
- Psyshock  
- Trick  
- Haze  

Zacian-Crowned @ Rusted Sword  
Ability: Intrepid Sword  
EVs: 252 Atk / 184 SpD / 72 Spe  
Adamant Nature  
- Play Rough  
- Close Combat  
- Wild Charge  
- Assurance  

Necrozma-Dusk-Mane @ Shed Shell  
Ability: Prism Armor  
EVs: 252 HP / 252 Def / 4 SpD  
Impish Nature  
- Stealth Rock  
- Sunsteel Strike  
- Earthquake  
- Morning Sun  

Yveltal @ Heavy-Duty Boots  
Ability: Dark Aura  
EVs: 252 HP / 36 Atk / 220 SpD  
Adamant Nature  
- Knock Off  
- Sucker Punch  
- Defog  
- Roost