Marshadow @ Safety Goggles  
Ability: Neutralizing Gas  
Tera Type: Normal  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Adamant Nature  
- Shell Smash  
- Collision Course  
- Last Respects  
- Magic Room  

Arceus @ Dread Plate  
Ability: Neutralizing Gas  
Tera Type: Ghost  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Modest Nature  
IVs: 0 Atk  
- Shell Smash  
- Boomburst  
- Judgment  
- Corrosive Gas  

Zoroark-Hisui @ Ability Shield  
Ability: Wonder Guard  
Tera Type: Grass  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Jolly Nature  
- Tidy Up  
- Revival Blessing  
- Lunar Dance  
- Last Respects  

Mewtwo-Mega-X @ Choice Scarf  
Ability: Huge Power  
Tera Type: Psychic  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Jolly Nature  
- Close Combat  
- Photon Geyser  
- Wicked Blow  
- Surging Strikes  

Scream Tail @ Leppa Berry  
Ability: Wonder Guard  
Tera Type: Normal  
EVs: 252 HP / 252 Def / 252 SpD / 252 Spe  
Bold Nature  
IVs: 0 Atk  
- Revival Blessing  
- Recycle  
- Corrosive Gas  
- Strength Sap  

Regieleki @ Ability Shield  
Ability: Wonder Guard  
Tera Type: Ghost  
EVs: 252 HP / 252 Def / 252 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Shed Tail  
- Corrosive Gas  
- Revival Blessing  
- Lunar Dance