Metagross @ Steel Gem  
Ability: Clear Body  
EVs: 240 HP / 252 Atk / 16 Spe  
Adamant Nature  
- Meteor Mash  
- Zen Headbutt  
- Protect  
- Bullet Punch  

Thundurus (M) @ Life Orb  
Ability: Prankster  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 30 HP / 2 Atk / 30 Def / 30 SpA / 30 SpD  
- Thunderbolt  
- Hidden Power [Flying]  
- Protect  
- Thunder Wave  

Kyurem-Black @ Haban Berry  
Ability: Teravolt  
EVs: 240 HP / 252 SpA / 16 Spe  
Modest Nature  
IVs: 0 Atk  
- Draco Meteor  
- Ice Beam  
- Earth Power  
- Protect  

Keldeo @ Fighting Gem  
Ability: Justified  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Hydro Pump  
- Secret Sword  
- Icy Wind  
- Protect