Klefki @ Light Clay  
Ability: Prankster  
EVs: 252 HP / 252 Def / 4 SpD  
Impish Nature  
- Play Rough  
- Spikes  
- Reflect  
- Light Screen  

Azumarill @ Sitrus Berry  
Ability: Huge Power  
EVs: 4 HP / 252 Atk / 252 Spe  
Adamant Nature  
- Aqua Jet  
- Play Rough  
- Knock Off  
- Belly Drum  

Slurpuff @ Sitrus Berry  
Ability: Unburden  
EVs: 4 HP / 252 Atk / 252 Spe  
Adamant Nature  
- Drain Punch  
- Play Rough  
- Belly Drum  
- Facade  

Magearna @ Weakness Policy  
Ability: Soul-Heart  
EVs: 252 HP / 4 Def / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Shift Gear  
- Draining Kiss  
- Calm Mind  
- Stored Power  

Clefable @ Life Orb  
Ability: Magic Guard  
EVs: 252 HP / 196 Def / 60 Spe  
Bold Nature  
IVs: 0 Atk  
- Moonblast  
- Fire Blast  
- Calm Mind  
- Soft-Boiled  

Mew @ Life Orb  
Ability: Synchronize  
EVs: 176 HP / 96 Atk / 236 Spe  
Adamant Nature  
- Poltergeist  
- Play Rough  
- Dragon Dance  
- Soft-Boiled