Xerneas @ Power Herb  
Ability: Fairy Aura  
EVs: 44 HP / 148 Def / 252 SpA / 64 Spe  
Modest Nature  
IVs: 0 Atk  
- Geomancy  
- Moonblast  
- Thunder  
- Substitute  

Calyrex-Shadow @ Leftovers  
Ability: As One (Spectrier)  
EVs: 252 HP / 4 Def / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Will-O-Wisp  
- Astral Barrage  
- Baton Pass  
- Substitute  

Necrozma-Dusk-Mane @ Leftovers  
Ability: Prism Armor  
EVs: 232 HP / 240 Def / 36 Spe  
Impish Nature  
- Dragon Dance  
- Sunsteel Strike  
- Earthquake  
- Morning Sun  

Yveltal @ Heavy-Duty Boots  
Ability: Dark Aura  
EVs: 248 HP / 8 Def / 252 SpD  
Careful Nature  
- Knock Off  
- Sucker Punch  
- Defog  
- Roost  

Eternatus @ Power Herb  
Ability: Pressure  
EVs: 236 HP / 116 SpD / 156 Spe  
Timid Nature  
IVs: 0 Atk  
- Cosmic Power  
- Dragon Pulse  
- Meteor Beam  
- Recover  

Xerneas @ Power Herb  
Ability: Fairy Aura  
EVs: 44 HP / 20 Def / 252 SpA / 192 Spe  
Modest Nature  
IVs: 0 Atk  
- Geomancy  
- Moonblast  
- Substitute  
- Thunder