Klefki @ Light Clay  
Ability: Prankster  
EVs: 252 HP / 4 Def / 252 SpD  
Calm Nature  
IVs: 0 Atk  
- Light Screen  
- Reflect  
- Spikes  
- Thunder Wave  

Barbaracle @ Lum Berry  
Ability: Tough Claws  
EVs: 252 Atk / 240 Spe  
Hasty Nature  
- Shell Smash  
- Liquidation  
- Stone Edge  
- Grass Knot  

Slurpuff @ Sitrus Berry  
Ability: Unburden  
EVs: 44 HP / 252 Atk / 4 SpD / 208 Spe  
Jolly Nature  
- Belly Drum  
- Drain Punch  
- Play Rough  
- Facade  

Polteageist @ White Herb  
Ability: Weak Armor  
EVs: 32 Def / 252 SpA / 224 Spe  
Timid Nature  
IVs: 0 Atk  
- Shell Smash  
- Shadow Ball  
- Giga Drain  
- Stored Power  

Necrozma @ Weakness Policy  
Ability: Prism Armor  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Dragon Dance  
- Photon Geyser  
- X-Scissor  
- Earthquake  

Flygon @ Life Orb  
Ability: Levitate  
EVs: 252 Atk / 60 Def / 196 Spe  
Adamant Nature  
- Dragon Dance  
- Earthquake  
- Stone Edge  
- Iron Tail