Xerneas @ Air Balloon  
Ability: Fairy Aura  
EVs: 192 HP / 252 Def / 64 Spe  
Bold Nature  
IVs: 0 Atk  
- Moonblast  
- Sleep Talk  
- Rest  
- Aromatherapy  

Groudon @ Leftovers  
Ability: Drought  
EVs: 104 HP / 252 Atk / 152 Spe  
Adamant Nature  
- Swords Dance  
- Precipice Blades  
- Stone Edge  
- Heat Crash  

Calyrex-Shadow @ Choice Specs  
Ability: As One (Spectrier)  
EVs: 4 Def / 252 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Trick  
- Nasty Plot  
- Astral Barrage  
- Psyshock  

Necrozma-Dusk-Mane @ Leftovers  
Ability: Prism Armor  
EVs: 252 HP / 136 SpD / 120 Spe  
Careful Nature  
- Stealth Rock  
- Iron Head  
- Thunder Wave  
- Morning Sun  

Eternatus @ Heavy-Duty Boots  
Ability: Pressure  
EVs: 40 HP / 252 SpD / 216 Spe  
Timid Nature  
IVs: 0 Atk  
- Dynamax Cannon  
- Mystical Fire  
- Toxic  
- Recover  

Yveltal @ Heavy-Duty Boots  
Ability: Dark Aura  
EVs: 72 HP / 252 SpD / 184 Spe  
Jolly Nature  
- Knock Off  
- Roost  
- Defog  
- Sucker Punch