Eternatus @ Black Sludge  
Ability: Regenerator  
Tera Type: Poison  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Trick  
- Dragon Energy  
- Malignant Chain  
- Torch Song  

Celesteela @ Assault Vest  
Ability: Regenerator  
Tera Type: Steel  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD  
Sassy Nature  
IVs: 0 Spe  
- Nuzzle  
- Revelation Dance  
- Stone Axe  
- U-turn  

Audino-Mega @ Leftovers  
Ability: Magic Bounce  
Tera Type: Normal  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD  
Sassy Nature  
IVs: 0 Spe  
- Salt Cure  
- Clear Smog  
- U-turn  
- Shore Up  

Groudon @ Leftovers  
Ability: Ice Scales  
Tera Type: Ground  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Adamant Nature  
- Dragon Dance  
- Bolt Strike  
- Mortal Spin  
- Precipice Blades  

Blissey (F) @ Covert Cloak  
Ability: Imposter  
Tera Type: Normal  
EVs: 252 HP / 252 Def / 252 SpD / 252 Spe  
Calm Nature  
IVs: 0 Atk  
- Heal Bell  
- Block  
- Topsy-Turvy  
- Shore Up  

Arceus-Ghost @ Spooky Plate  
Ability: Fur Coat  
Tera Type: Ghost  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Take Heart  
- Judgment  
- Secret Sword  
- Shore Up