Toxapex @ Rocky Helmet  
Ability: Regenerator  
EVs: 252 HP / 252 Def  
Bold Nature  
IVs: 0 Atk  
- Toxic  
- Scald  
- Haze  
- Recover  

Eternatus @ Black Sludge  
Ability: Pressure  
EVs: 208 HP / 228 Def / 40 SpD / 32 Spe  
Bold Nature  
IVs: 0 Atk  
- Recover  
- Flamethrower  
- Substitute  
- Dynamax Cannon  

Reuniclus @ Leftovers  
Ability: Magic Guard  
EVs: 252 HP / 208 Def / 48 SpD  
Bold Nature  
IVs: 0 Atk  
- Calm Mind  
- Iron Defense  
- Recover  
- Stored Power  

Magearna @ Choice Specs  
Ability: Soul-Heart  
EVs: 252 SpA / 252 Spe  
IVs: 0 Atk  
- Trick  
- Flash Cannon  
- Volt Switch  
- Fleur Cannon  

Corviknight @ Leftovers  
Ability: Pressure  
EVs: 252 HP / 4 Def / 252 SpD  
Careful Nature  
- Defog  
- Roost  
- Iron Head  
- U-turn  

Marowak-Alola @ Thick Club  
Ability: Rock Head  
EVs: 4 HP / 252 Atk / 252 Spe  
Jolly Nature  
- Stealth Rock  
- Flare Blitz  
- Earthquake  
- Poltergeist