Xerneas @ Leftovers  
Ability: Fairy Aura  
EVs: 252 HP / 252 Def / 4 SpA  
Bold Nature  
IVs: 0 Atk  
- Rest  
- Moonblast  
- Sleep Talk  
- Aromatherapy  

Calyrex-Shadow @ Leftovers  
Ability: As One (Spectrier)  
EVs: 60 Def / 196 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Astral Barrage  
- Nasty Plot  
- Substitute  
- Leech Seed  

Necrozma-Dusk-Mane @ Leftovers  
Ability: Prism Armor  
EVs: 252 HP / 216 SpD / 40 Spe  
Careful Nature  
- Thunder Wave  
- Iron Head  
- Stealth Rock  
- Moonlight  

Yveltal @ Heavy-Duty Boots  
Ability: Dark Aura  
EVs: 248 HP / 72 Def / 188 SpD  
Careful Nature  
- Knock Off  
- Sucker Punch  
- Defog  
- Roost  

Groudon @ Leftovers  
Ability: Drought  
EVs: 240 HP / 8 Atk / 244 Def / 16 Spe  
Impish Nature  
- Swords Dance  
- Precipice Blades  
- Stone Edge  
- Heat Crash  

Eternatus @ Air Balloon  
Ability: Pressure  
EVs: 164 HP / 252 SpD / 92 Spe  
Timid Nature  
IVs: 0 Atk  
- Dynamax Cannon  
- Flamethrower  
- Toxic  
- Recover