Tapu Koko @ Terrain Extender  
Ability: Electric Surge  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Thunderbolt  
- Volt Switch  
- Dazzling Gleam  
- Roost  

Regieleki @ Choice Specs  
Ability: Transistor  
EVs: 4 Atk / 252 SpA / 252 Spe  
Hasty Nature  
- Rising Voltage  
- Volt Switch  
- Rapid Spin  
- Hyper Beam  

Klefki @ Ring Target  
Ability: Prankster  
EVs: 252 HP / 252 Def / 4 SpD  
Bold Nature  
IVs: 0 Atk  
- Spikes  
- Switcheroo  
- Reflect  
- Thunder Wave  

Mew @ Ring Target  
Ability: Synchronize  
EVs: 252 HP / 4 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Stealth Rock  
- Thunder Wave  
- Ice Beam  
- Trick  

Melmetal @ Protective Pads  
Ability: Iron Fist  
EVs: 24 HP / 252 Atk / 232 Spe  
Adamant Nature  
- Thunder Wave  
- Double Iron Bash  
- Superpower  
- Thunder Punch  

Landorus-Therian (M) @ Leftovers  
Ability: Intimidate  
EVs: 252 HP / 252 SpD / 4 Spe  
Careful Nature  
- Defog  
- Toxic  
- U-turn  
- Earthquake