Rayquaza @ Focus Sash  
Ability: Air Lock  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Dragon Ascent  
- V-create  
- Swords Dance  
- Scale Shot  

Xerneas @ Power Herb  
Ability: Fairy Aura  
EVs: 168 Def / 252 SpA / 88 Spe  
Modest Nature  
IVs: 0 Atk  
- Moonblast  
- Geomancy  
- Aromatherapy  
- Thunder  

Slurpuff @ Focus Sash  
Ability: Unburden  
EVs: 252 SpA / 252 Spe  
Timid Nature  
IVs: 0 HP / 0 Atk / 0 Def / 0 SpD  
- Sticky Web  
- Magic Coat  
- Yawn  
- Misty Explosion  

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

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

Eternatus @ Power Herb  
Ability: Pressure  
EVs: 96 HP / 252 SpA / 160 Spe  
Modest Nature  
IVs: 0 Atk  
- Dynamax Cannon  
- Flamethrower  
- Meteor Beam  
- Sludge Bomb