Toxapex @ Black Sludge  
Ability: Regenerator  
EVs: 248 HP / 8 Atk / 252 Def  
Impish Nature  
- Scald  
- Poison Jab  
- Recover  
- Haze  

Greninja @ Choice Scarf  
Ability: Protean  
EVs: 4 Atk / 252 SpA / 252 Spe  
Naive Nature  
- U-turn  
- Gunk Shot  
- Ice Beam  
- Toxic Spikes  

Gastrodon-East @ Leftovers  
Ability: Storm Drain  
EVs: 252 HP / 4 SpA / 252 SpD  
Calm Nature  
IVs: 0 Atk  
- Scald  
- Earth Power  
- Recover  
- Clear Smog  

Empoleon @ Leftovers  
Ability: Torrent  
EVs: 252 HP / 4 SpA / 252 SpD  
Calm Nature  
IVs: 0 Atk  
- Flash Cannon  
- Roar  
- Stealth Rock  
- Defog  

Rotom-Wash @ Waterium Z  
Ability: Levitate  
EVs: 252 HP / 88 SpA / 168 Spe  
Modest Nature  
IVs: 0 Atk  
- Nasty Plot  
- Discharge  
- Hydro Pump  
- Pain Split  

Gyarados-Mega @ Gyaradosite  
Ability: Mold Breaker  
EVs: 252 HP / 124 SpD / 132 Spe  
Jolly Nature  
- Dragon Dance  
- Crunch  
- Taunt  
- Rest