Regigigas @ Lum Berry  
Ability: Huge Power  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Adamant Nature  
- Extreme Speed  
- Fake Out  
- Pursuit  
- Fire Fang  

Spiritomb @ Shed Shell  
Ability: Wonder Guard  
EVs: 248 HP / 252 Def / 252 SpA / 252 SpD  
Relaxed Nature  
IVs: 0 Atk / 0 Spe  
- Roost  
- Toxic Spikes  
- Whirlwind  
- Magic Coat  

Ho-Oh @ Toxic Orb  
Ability: Magic Guard  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Impish Nature  
- Milk Drink  
- Charm  
- Toxic  
- Brave Bird  

Giratina-Origin @ Griseous Orb  
Ability: Huge Power  
EVs: 248 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Adamant Nature  
- Dragon Dance  
- Fire Fang  
- Leaf Blade  
- Shadow Sneak  

Dialga @ Leftovers  
Ability: Mold Breaker  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Bold Nature  
IVs: 0 Atk  
- Roost  
- Rapid Spin  
- Spacial Rend  
- Spore  

Swampert @ Shed Shell  
Ability: Wonder Guard  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD  
Relaxed Nature  
IVs: 0 Spe  
- U-turn  
- Stealth Rock  
- Roost  
- Rapid Spin