Kyurem-Black @ Electrium Z  
Ability: Teravolt  
EVs: 252 Atk / 4 SpA / 252 Spe  
Naive Nature  
- Roost  
- Fusion Bolt  
- Ice Beam  
- Earth Power  

Tapu Koko @ Choice Specs  
Ability: Electric Surge  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
- Dazzling Gleam  
- Thunderbolt  
- U-turn  
- Hidden Power [Fire]  

Magearna @ Assault Vest  
Ability: Soul-Heart  
EVs: 248 HP / 224 SpD / 36 Spe  
Sassy Nature  
IVs: 0 Atk  
- Volt Switch  
- Fleur Cannon  
- Focus Blast  
- Flash Cannon  

Gastrodon @ Leftovers  
Ability: Storm Drain  
EVs: 252 HP / 156 Def / 100 SpD  
Sassy Nature  
- Earthquake  
- Recover  
- Scald  
- Toxic  

Landorus-Therian @ Choice Scarf  
Ability: Intimidate  
EVs: 232 Atk / 68 Def / 208 Spe  
Jolly Nature  
- Earthquake  
- U-turn  
- Stone Edge  
- Defog  

Ferrothorn @ Leftovers  
Ability: Iron Barbs  
EVs: 252 HP / 252 Def / 4 SpD  
Impish Nature  
- Stealth Rock  
- Knock Off  
- Leech Seed  
- Power Whip