Volcanion @ Choice Specs  
Ability: Primordial Sea  
EVs: 252 SpA / 4 SpD / 252 Spe  
Modest Nature  
IVs: 0 Atk  
- Weather Ball  
- Steam Eruption  
- Earth Power  
- Sludge Bomb  

Mew @ Leftovers  
Ability: Magic Bounce  
EVs: 200 HP / 252 Def / 56 Spe  
Bold Nature  
- Roost  
- Teleport  
- Will-O-Wisp  
- Knock Off  

Diancie @ Leftovers  
Ability: Regenerator  
EVs: 248 HP / 60 Def / 200 SpD  
Impish Nature  
- Diamond Storm  
- Body Press  
- Stealth Rock  
- Heal Bell  

Excadrill @ Choice Scarf  
Ability: Regenerator  
EVs: 104 HP / 252 SpD / 152 Spe  
Jolly Nature  
- High Horsepower  
- Rapid Spin  
- Iron Head  
- Toxic  

Toxapex @ Black Sludge  
Ability: Prankster  
EVs: 252 HP / 252 Def / 4 SpD  
Bold Nature  
IVs: 0 Atk  
- Recover  
- Scald  
- Toxic  
- Haze  

Golisopod @ Heavy-Duty Boots  
Ability: Triage  
EVs: 252 HP / 252 Atk / 4 SpD  
Adamant Nature  
- Swords Dance  
- Leech Life  
- Knock Off  
- Spikes