Reshiram @ Life Orb  
Ability: Turboblaze  
EVs: 252 Atk / 4 Def / 252 Spe  
Jolly Nature  
- Flare Blitz  
- Dragon Claw  
- Roost  
- Dragon Dance  

Yveltal @ Heavy-Duty Boots  
Ability: Dark Aura  
EVs: 248 HP / 72 SpD / 188 Spe  
Jolly Nature  
- Roost  
- Defog  
- Knock Off  
- Foul Play  

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

Zacian-Crowned @ Rusted Sword  
Ability: Intrepid Sword  
EVs: 248 HP / 252 Atk / 8 Spe  
Adamant Nature  
- Close Combat  
- Behemoth Blade  
- Wild Charge  
- Assurance  

Xerneas @ Leftovers  
Ability: Fairy Aura  
EVs: 252 HP / 104 Def / 72 SpA / 80 Spe  
Bold Nature  
IVs: 0 Atk  
- Thunder Wave  
- Moonblast  
- Aromatherapy  
- Rest  

Eternatus @ Heavy-Duty Boots  
Ability: Pressure  
EVs: 252 HP / 28 Def / 212 SpD / 16 Spe  
Timid Nature  
IVs: 0 Atk  
- Dynamax Cannon  
- Toxic  
- Flamethrower  
- Recover