Dialga-Origin @ Adamant Crystal  
Ability: Wandering Spirit  
Tera Type: Steel  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Modest Nature  
IVs: 0 Atk  
- Doom Desire  
- Thunder Cage  
- Revelation Dance  
- Strength Sap  

Tyranitar-Mega @ Assault Vest  
Ability: Regenerator  
Shiny: Yes  
Tera Type: Rock  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD  
Sassy Nature  
IVs: 0 Spe  
- Knock Off  
- Rapid Spin  
- U-turn  
- Dragon Tail  

Stakataka @ Assault Vest  
Ability: Regenerator  
Shiny: Yes  
Tera Type: Rock  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD  
Sassy Nature  
IVs: 0 Spe  
- U-turn  
- Stone Axe  
- Mortal Spin  
- Dragon Tail  

Slowbro-Mega @ Assault Vest  
Ability: Regenerator  
Shiny: Yes  
Tera Type: Water  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD  
Bold Nature  
IVs: 23 Spe  
- Scald  
- U-turn  
- Future Sight  
- Dragon Tail  

Nihilego @ Smooth Rock  
Ability: Sand Stream  
Shiny: Yes  
Tera Type: Rock  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Calm Nature  
IVs: 0 Atk  
- Parting Shot  
- Sludge Bomb  
- Shore Up  
- Burning Bulwark  

Arceus-Fairy @ Leftovers  
Ability: Fur Coat  
Shiny: Yes  
Tera Type: Fairy  
EVs: 252 HP / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Calm Nature  
IVs: 0 Atk  
- Take Heart  
- Strength Sap  
- Moonblast  
- Topsy-Turvy