Necrozma-Dusk-Mane @ Leftovers  
Ability: Flash Fire  
EVs: 252 HP / 4 Atk / 252 Def  
Impish Nature  
- Stealth Rock  
- Morning Sun  
- Sunsteel Strike  
- Knock Off  

Blissey (F) @ Heavy-Duty Boots  
Ability: Magic Bounce  
EVs: 252 HP / 4 Def / 252 SpD  
Calm Nature  
IVs: 0 Atk  
- Wish  
- Teleport  
- Toxic  
- Soft-Boiled  

Yveltal @ Heavy-Duty Boots  
Ability: Regenerator  
EVs: 248 HP / 252 Def / 8 SpA  
Lax Nature  
- Knock Off  
- Foul Play  
- U-turn  
- Toxic  

Xerneas @ Toxic Orb  
Ability: Poison Heal  
EVs: 248 HP / 252 Def / 8 SpA  
Bold Nature  
IVs: 0 Atk  
- Moonblast  
- Protect  
- Defog  
- Aromatherapy  

Eternatus @ Black Sludge  
Ability: Magic Bounce  
EVs: 252 HP / 4 Atk / 208 SpD / 44 Spe  
Gentle Nature  
- Sludge Bomb  
- Toxic Spikes  
- Recover  
- Dragon Tail  

Moltres-Galar @ Assault Vest  
Ability: Regenerator  
EVs: 252 HP / 4 SpA / 252 SpD  
Calm Nature  
- Fiery Wrath  
- U-turn  
- Hurricane  
- Foul Play