Ditto @ Choice Scarf  
Ability: Imposter  
EVs: 252 HP / 4 Def / 252 SpD  
Sassy Nature  
IVs: 0 Spe  
- Transform  

Aegislash (M) @ Leftovers  
Ability: Stance Change  
EVs: 120 HP / 252 SpA / 136 Spe  
Mild Nature  
- Substitute  
- Shadow Ball  
- Flash Cannon  
- Close Combat  

Toxapex (M) @ Rocky Helmet  
Ability: Regenerator  
EVs: 248 HP / 252 Def / 8 SpD  
Relaxed Nature  
- Scald  
- Knock Off  
- Haze  
- Recover  

Blissey (F) @ Heavy-Duty Boots  
Ability: Natural Cure  
EVs: 200 HP / 252 Def / 56 SpD  
Bold Nature  
IVs: 0 Atk  
- Stealth Rock  
- Seismic Toss  
- Toxic  
- Soft-Boiled  

Corviknight (M) @ Leftovers  
Ability: Pressure  
EVs: 252 HP / 4 Def / 252 SpD  
Impish Nature  
- Iron Head  
- Body Press  
- Defog  
- Roost  

Amoonguss (M) @ Rocky Helmet  
Ability: Regenerator  
EVs: 252 HP / 252 Def / 4 SpD  
Bold Nature  
IVs: 0 Atk  
- Giga Drain  
- Sludge Bomb  
- Clear Smog  
- Spore