Dialga-Origin @ Adamant Crystal  
Ability: Ice Scales  
Tera Type: Steel  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Quiet Nature  
- Nasty Plot  
- Doom Desire  
- Dragon Tail  
- Shore Up  

Koraidon @ Life Orb  
Ability: Magic Guard  
Tera Type: Fighting  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Jolly Nature  
- Strength Sap  
- Combat Torque  
- Dragon Darts  
- Thunder Wave  

Arceus-Fairy @ Covert Cloak  
Ability: Magic Bounce  
Tera Type: Fairy  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Careful Nature  
- Victory Dance  
- Shore Up  
- Magical Torque  
- Spirit Shackle  

Kyogre-Primal @ Covert Cloak  
Ability: Guard Dog  
Tera Type: Water  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Relaxed Nature  
- Strength Sap  
- Steam Eruption  
- Spirit Shackle  
- Take Heart  

Swampert-Mega @ Heavy-Duty Boots  
Ability: Fur Coat  
Tera Type: Water  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Impish Nature  
- Tidy Up  
- Precipice Blades  
- Spirit Shackle  
- Strength Sap  

Eternatus @ Heavy-Duty Boots  
Ability: Fur Coat  
Tera Type: Poison  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Naive Nature  
- Shell Side Arm  
- Torch Song  
- Strength Sap  
- Knock Off