Necrozma-Dusk-Mane @ Weakness Policy  
Ability: Prism Armor  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Dragon Dance  
- Sunsteel Strike  
- Earthquake  
- Stone Edge  

Ho-Oh @ Heavy-Duty Boots  
Ability: Regenerator  
EVs: 248 HP / 200 Def / 60 SpD  
Impish Nature  
- Toxic  
- Sacred Fire  
- Defog  
- Whirlwind  

Zacian-Crowned @ Rusted Sword  
Ability: Intrepid Sword  
EVs: 252 Atk / 4 SpD / 252 Spe  
Adamant Nature  
- Behemoth Blade  
- Close Combat  
- Wild Charge  
- Play Rough  

Arceus-Ground @ Earth Plate  
Ability: Multitype  
EVs: 248 HP / 244 Def / 16 Spe  
Bold Nature  
IVs: 0 Atk  
- Judgment  
- Ice Beam  
- Recover  
- Refresh  

Rayquaza-Mega @ Life Orb  
Ability: Delta Stream  
EVs: 252 Atk / 4 SpA / 252 Spe  
Hasty Nature  
- V-create  
- Dragon Ascent  
- Draco Meteor  
- Extreme Speed  

Groudon-Primal @ Red Orb  
Ability: Desolate Land  
EVs: 252 HP / 136 Def / 120 SpD  
Impish Nature  
- Precipice Blades  
- Stone Edge  
- Stealth Rock  
- Rest