Regigigas @ Toxic Orb  
Ability: Poison Heal  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Jolly Nature  
- Flip Turn  
- Nuzzle  
- Spikes  
- Facade  

Xerneas @ Pixie Plate  
Ability: Pixilate  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Mild Nature  
- Extreme Speed  
- Rapid Spin  
- Boomburst  
- Strength Sap  

Ferrothorn @ Leftovers  
Ability: Magic Bounce  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD  
Sassy Nature  
IVs: 0 Spe  
- U-turn  
- Recover  
- Anchor Shot  
- Worry Seed  

Ho-Oh @ Heavy-Duty Boots  
Ability: Prankster  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Careful Nature  
- Glare  
- Shore Up  
- Fire Lash  
- Topsy-Turvy  

Giratina-Origin @ Griseous Orb  
Ability: Fur Coat  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Relaxed Nature  
- Knock Off  
- Core Enforcer  
- Spectral Thief  
- Soft-Boiled  

Zacian @ Fairy Memory  
Ability: Tough Claws  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Jolly Nature  
- Swords Dance  
- V-create  
- Fishious Rend  
- Multi-Attack