Mew @ Red Card  
Ability: Synchronize  
EVs: 252 HP / 4 Def / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Stealth Rock  
- Spikes  
- Misty Explosion  
- Taunt  

Grimmsnarl (M) @ Light Clay  
Ability: Prankster  
EVs: 252 HP / 176 Def / 80 SpD  
Careful Nature  
IVs: 0 Atk  
- Reflect  
- Light Screen  
- Taunt  
- Thunder Wave  

Necrozma-Dusk-Mane @ Weakness Policy  
Ability: Prism Armor  
EVs: 204 HP / 184 Atk / 120 Spe  
Adamant Nature  
- Dragon Dance  
- Knock Off  
- Sunsteel Strike  
- Heat Wave  

Zacian-Crowned @ Rusted Sword  
Ability: Intrepid Sword  
EVs: 4 HP / 252 Atk / 252 Spe  
Jolly Nature  
- Behemoth Blade  
- Close Combat  
- Swords Dance  
- Wild Charge  

Calyrex-Shadow @ Life Orb  
Ability: As One (Spectrier)  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Astral Barrage  
- Psychic  
- Nasty Plot  
- Draining Kiss  

Xerneas @ Power Herb  
Ability: Fairy Aura  
EVs: 4 Def / 252 SpA / 252 Spe  
Modest Nature  
IVs: 0 Atk  
- Geomancy  
- Moonblast  
- Focus Blast  
- Thunder