Ho-Oh @ Life Orb  
Ability: Magic Guard  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Adamant Nature  
- Brave Bird  
- Fire Lash  
- Nuzzle  
- Recover  

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

Zekrom @ Choice Scarf  
Ability: Regenerator  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Naughty Nature  
- Trick  
- Will-O-Wisp  
- Bolt Strike  
- Draco Meteor  

Xerneas @ Toxic Orb  
Ability: Poison Heal  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Bold Nature  
IVs: 0 Atk  
- Quiver Dance  
- Moonblast  
- Strength Sap  
- Teleport  

Regigigas @ Light Clay  
Ability: Prankster  
EVs: 252 HP / 252 Def / 252 SpD / 252 Spe  
Calm Nature  
IVs: 0 Atk  
- Light Screen  
- Reflect  
- Haze  
- Roost  

Giratina @ Heavy-Duty Boots  
Ability: Magic Bounce  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Impish Nature  
- Entrainment  
- Spectral Thief  
- Shore Up  
- Defog