Mewtwo @ Leftovers  
Ability: Pressure  
EVs: 248 HP / 8 Def / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Substitute  
- Shadow Ball  
- Psystrike  
- Recover  

Corviknight @ Leftovers  
Ability: Pressure  
EVs: 252 HP / 252 Def / 4 SpD  
Bold Nature  
IVs: 0 Atk  
- Roost  
- Defog  
- Body Press  
- Iron Defense  

Ditto @ Choice Scarf  
Ability: Imposter  
EVs: 248 HP / 8 Atk / 252 Def  
Impish Nature  
IVs: 30 Atk  
- Transform  

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

Necrozma-Dusk-Mane @ Leftovers  
Ability: Prism Armor  
EVs: 252 HP / 252 Def / 4 SpD  
Impish Nature  
- Stealth Rock  
- Earthquake  
- Knock Off  
- Morning Sun  

Umbreon @ Leftovers  
Ability: Synchronize  
EVs: 252 HP / 4 SpA / 252 SpD  
Calm Nature  
IVs: 0 Atk  
- Wish  
- Protect  
- Foul Play  
- Heal Bell