Eternatus @ Power Herb  
Ability: Pressure  
EVs: 120 HP / 4 Def / 252 SpA / 132 Spe  
Modest Nature  
IVs: 0 Atk  
- Dynamax Cannon  
- Flamethrower  
- Substitute  
- Meteor Beam  

Galvantula @ Focus Sash  
Ability: Compound Eyes  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Sticky Web  
- Thunder  
- String Shot  
- Toxic  

Yveltal @ Life Orb  
Ability: Dark Aura  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Dark Pulse  
- Oblivion Wing  
- Taunt  
- Heat Wave  

Necrozma (Necrozma-Dusk-Mane) @ Weakness Policy  
Ability: Prism Armor  
EVs: 112 HP / 252 Atk / 144 Spe  
Adamant Nature  
- Stone Edge  
- Sunsteel Strike  
- Dragon Dance  
- Earthquake  

Yveltal @ Life Orb  
Ability: Dark Aura  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Hone Claws  
- Sucker Punch  
- Dual Wingbeat  
- Knock Off  

Xerneas @ Power Herb  
Ability: Fairy Aura  
EVs: 248 HP / 252 Def / 8 SpD  
Modest Nature  
IVs: 0 Atk  
- Geomancy  
- Moonblast  
- Substitute  
- Ingrain