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

Zygarde @ Leftovers  
Ability: Power Construct  
EVs: 16 HP / 244 Atk / 16 SpD / 232 Spe  
Adamant Nature  
- Coil  
- Scale Shot  
- Thousand Waves  
- Rest  

Yveltal @ Choice Scarf  
Ability: Dark Aura  
EVs: 16 HP / 240 SpD / 252 Spe  
Jolly Nature  
- Foul Play  
- U-turn  
- Roost  
- Defog  

Ho-Oh @ Heavy-Duty Boots  
Ability: Regenerator  
EVs: 248 HP / 208 Def / 52 SpD  
Impish Nature  
- Sacred Fire  
- Brave Bird  
- Defog  
- Whirlwind  

Eternatus @ Black Sludge  
Ability: Pressure  
EVs: 176 HP / 240 SpD / 92 Spe  
Timid Nature  
IVs: 0 Atk  
- Dynamax Cannon  
- Recover  
- Mystical Fire  
- Toxic  

Necrozma-Dusk-Mane @ Leftovers  
Ability: Prism Armor  
EVs: 252 HP / 136 Def / 120 Spe  
Impish Nature  
- Sunsteel Strike  
- Morning Sun  
- Earthquake  
- Dragon Dance