Arceus @ Heavy-Duty Boots  
Ability: Multitype  
Tera Type: Fire  
EVs: 200 HP / 252 Atk / 56 Spe  
Adamant Nature  
- Swords Dance  
- Extreme Speed  
- Shadow Claw  
- Taunt  

Hatterene (F) @ Leftovers  
Ability: Magic Bounce  
Tera Type: Water  
EVs: 252 HP / 200 Def / 56 Spe  
Bold Nature  
- Psyshock  
- Draining Kiss  
- Mystical Fire  
- Calm Mind  

Gliscor @ Toxic Orb  
Ability: Poison Heal  
Tera Type: Water  
EVs: 244 HP / 252 Def / 12 SpD  
Impish Nature  
- Earthquake  
- Toxic  
- Spikes  
- Protect  

Toxapex @ Rocky Helmet  
Ability: Regenerator  
Tera Type: Fairy  
EVs: 252 HP / 252 Def / 4 SpD  
Bold Nature  
IVs: 0 Atk  
- Recover  
- Haze  
- Toxic  
- Ice Beam  

Dialga @ Choice Scarf  
Ability: Pressure  
Tera Type: Dragon  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Draco Meteor  
- Fire Blast  
- Dragon Pulse  
- Thunder  

Grimmsnarl (M) @ Light Clay  
Ability: Prankster  
Tera Type: Ghost  
EVs: 248 HP / 180 Def / 80 SpD  
Impish Nature  
IVs: 0 Atk  
- Reflect  
- Light Screen  
- Taunt  
- Parting Shot