Necrozma-Dusk-Mane @ Leftovers  
Ability: Prism Armor  
EVs: 252 HP / 136 Def / 120 Spe  
Impish Nature  
- Dragon Dance  
- Sunsteel Strike  
- Knock Off  
- Morning Sun  

Eternatus @ Power Herb  
Ability: Pressure  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Recover  
- Meteor Beam  
- Dynamax Cannon  
- Flamethrower  

Yveltal @ Heavy-Duty Boots  
Ability: Dark Aura  
EVs: 252 Atk / 4 Def / 252 Spe  
Jolly Nature  
- Hone Claws  
- Knock Off  
- Sucker Punch  
- Roost  

Ferrothorn @ Leftovers  
Ability: Iron Barbs  
EVs: 252 HP / 252 SpD / 4 Spe  
Careful Nature  
- Spikes  
- Leech Seed  
- Bullet Seed  
- Knock Off  

Landorus-Therian (M) @ Leftovers  
Ability: Intimidate  
EVs: 252 HP / 236 Def / 20 Spe  
Impish Nature  
- U-turn  
- Stealth Rock  
- Toxic  
- Earthquake  

Xerneas @ Choice Scarf  
Ability: Fairy Aura  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Moonblast  
- Rest  
- Endeavor  
- Aromatherapy