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

Eternatus @ Life Orb  
Ability: Pressure  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Dynamax Cannon  
- Flamethrower  
- Sludge Bomb  
- Recover  

Yveltal @ Heavy-Duty Boots  
Ability: Dark Aura  
EVs: 252 Atk / 4 Def / 252 Spe  
Jolly Nature  
- Hone Claws  
- Knock Off  
- Sucker Punch  
- Roost  

Zygarde @ Maranga Berry  
Ability: Power Construct  
EVs: 252 HP / 252 SpD / 4 Spe  
Careful Nature  
- Coil  
- Block  
- Thousand Arrows  
- Rest  

Ho-Oh @ Heavy-Duty Boots  
Ability: Regenerator  
EVs: 252 HP / 96 Atk / 96 Def / 48 SpD / 16 Spe  
Adamant Nature  
- Thunder Wave  
- Sacred Fire  
- Brave Bird  
- Roost  

Groudon @ Leftovers  
Ability: Drought  
EVs: 252 HP / 240 Def / 16 Spe  
Impish Nature  
- Dragon Tail  
- Stealth Rock  
- Precipice Blades  
- Stone Edge