Mew @ Leftovers  
Ability: Synchronize  
EVs: 252 HP / 4 Atk / 252 Def  
Impish Nature  
- Iron Head  
- Roost  
- Magic Room  
- Spikes  

Clefable @ Leftovers  
Ability: Unaware  
EVs: 252 HP / 4 SpA / 252 SpD  
Calm Nature  
IVs: 0 Atk  
- Soft-Boiled  
- Moonblast  
- Toxic  
- Stealth Rock  

Latias (F) @ Leftovers  
Ability: Levitate  
EVs: 252 HP / 252 Def / 4 SpA  
Bold Nature  
IVs: 0 Atk  
- Surf  
- Shadow Ball  
- Roost  
- Magic Room  

Slowking-Galar @ Assault Vest  
Ability: Regenerator  
EVs: 252 HP / 252 Def / 4 SpA  
Bold Nature  
IVs: 0 Atk  
- Scald  
- Sludge Bomb  
- Trick  
- Calm Mind  

Slowbro @ Assault Vest  
Ability: Regenerator  
EVs: 252 HP / 252 Def / 4 SpA  
Relaxed Nature  
IVs: 0 Atk  
- Shadow Ball  
- Foul Play  
- Slack Off  
- Trick  

Mr. Rime @ Heavy-Duty Boots  
Ability: Screen Cleaner  
EVs: 248 HP / 8 SpA / 252 SpD  
Calm Nature  
- Shadow Ball  
- Rapid Spin  
- Slack Off  
- Toxic