Eternatus @ Black Sludge  
Ability: Pressure  
EVs: 252 HP / 240 Def / 16 Spe  
Timid Nature  
IVs: 0 Atk  
- Cosmic Power  
- Flamethrower  
- Recover  
- Dynamax Cannon  

Blissey (F) @ Heavy-Duty Boots  
Ability: Natural Cure  
EVs: 252 HP / 4 Def / 252 SpD  
Calm Nature  
IVs: 0 Atk / 0 Spe  
- Heal Bell  
- Thunder Wave  
- Seismic Toss  
- Soft-Boiled  

Quagsire @ Shed Shell  
Ability: Unaware  
EVs: 252 HP / 252 Def / 4 SpD  
Impish Nature  
- Earthquake  
- Recover  
- Scald  
- Curse  

Corviknight @ Rocky Helmet  
Ability: Pressure  
Shiny: Yes  
EVs: 248 HP / 252 Def / 8 SpD  
Impish Nature  
IVs: 30 Spe  
- Body Press  
- Roost  
- U-turn  
- Defog  

Mewtwo @ Life Orb  
Ability: Unnerve  
EVs: 4 Def / 252 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Nasty Plot  
- Psystrike  
- Fire Blast  
- Focus Blast  

Gyarados @ Lum Berry/life orb  
Ability: Moxie  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Waterfall  
- Dragon Dance  
- Earthquake/power whip  
- Bounce