Dialga @ Adamant Orb  
Ability: Teravolt  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Relaxed Nature  
- Doom Desire  
- Dragon Tail  
- Strength Sap  
- Toxic Spikes  

Spiritomb @ Toxic Orb  
Ability: Poison Heal  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD  
Sassy Nature  
IVs: 0 Spe  
- Core Enforcer  
- U-turn  
- Will-O-Wisp  
- Spiky Shield  

Regigigas @ Heavy-Duty Boots  
Ability: Regenerator  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Adamant Nature  
- Multi-Attack  
- Spectral Thief  
- Glacial Lance  
- Court Change  

Ho-Oh @ Heavy-Duty Boots  
Ability: Aerilate  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Adamant Nature  
- Swords Dance  
- Rapid Spin  
- Extreme Speed  
- Recover  

Steelix @ Safety Goggles  
Ability: Prankster  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Careful Nature  
- Haze  
- Anchor Shot  
- Skill Swap  
- Roost  

Tapu Fini @ Toxic Orb  
Ability: Poison Heal  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Relaxed Nature  
- Court Change  
- Scald  
- King's Shield  
- Spectral Thief