Tapu Koko @ Shuca Berry  
Ability: Electric Surge  
EVs: 104 HP / 12 Def / 176 SpA / 216 Spe  
Timid Nature  
IVs: 0 Atk  
- Volt Switch  
- Thunderbolt  
- Hidden Power [Ice]  
- Roost

Kyurem-Black @ Icium Z  
Ability: Teravolt  
EVs: 252 Atk / 4 SpA / 252 Spe  
Naive Nature  
- Freeze Shock  
- Fusion Bolt  
- Ice Beam  
- Roost / Hidden Power [Fire]