Eternatus @ Covert Cloak  
Ability: Regenerator  
Tera Type: Poison  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Timid Nature  
- Dragon Energy  
- Volt Switch  
- Wish  
- Nuzzle  

Dondozo @ Covert Cloak  
Ability: Fur Coat  
Tera Type: Water  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD  
Relaxed Nature  
IVs: 0 Spe  
- Flip Turn  
- Stone Axe  
- Shore Up  
- Strength Sap  

Tyranitar-Mega @ Assault Vest  
Ability: Regenerator  
Shiny: Yes  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Adamant Nature  
- Knock Off  
- Salt Cure  
- Mortal Spin  
- U-turn  

Magearna @ Covert Cloak  
Ability: Ice Scales  
Tera Type: Steel  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Calm Nature  
IVs: 0 Atk  
- Moonblast  
- Topsy-Turvy  
- Shore Up  
- Teleport  

Arceus-Ghost @ Spooky Plate  
Ability: Magic Guard  
Shiny: Yes  
Tera Type: Ghost  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Timid Nature  
- Judgment  
- Torch Song  
- Shore Up  
- Rapid Spin  

Garchomp-Mega @ Life Orb  
Ability: Sand Rush  
Shiny: Yes  
EVs: 248 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Adamant Nature  
- Glaive Rush  
- Headlong Rush  
- Bolt Strike  
- Swords Dance