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

Ho-Oh @ Heavy-Duty Boots  
Ability: Regenerator  
EVs: 244 HP / 8 Atk / 252 Def / 4 SpD  
Impish Nature  
- Defog  
- Sacred Fire  
- Whirlwind  
- Roost  

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

Necrozma-Dusk-Mane @ Weakness Policy  
Ability: Prism Armor  
EVs: 136 HP / 252 Atk / 120 Spe  
Adamant Nature  
- Autotomize  
- Photon Geyser  
- Sunsteel Strike  
- Earthquake  

Marshadow @ Life Orb  
Ability: Technician  
EVs: 252 Atk / 4 Def / 252 Spe  
Adamant Nature  
- Poltergeist  
- Close Combat  
- Shadow Sneak  
- Rock Tomb  

Calyrex-Shadow @ Life Orb  
Ability: As One (Spectrier)  
EVs: 4 Def / 252 SpA / 252 Spe  
Timid Nature  
- Astral Barrage  
- Nasty Plot  
- Psyshock  
- Draining Kiss