Groudon-Primal @ Life Orb  
Ability: Teravolt  
EVs: 248 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Adamant Nature  
- Shift Gear  
- Headlong Rush  
- Bitter Blade  
- Glaive Rush  

Diancie-Mega @ Wide Lens  
Ability: Pixilate  
EVs: 248 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Adamant Nature  
- Extreme Speed  
- Population Bomb  
- Triple Dive  
- Precipice Blades  

Celesteela @ Rocky Helmet  
Ability: Primordial Sea  
EVs: 248 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD  
Relaxed Nature  
IVs: 1 Spe  
- Scald  
- Strength Sap  
- Gigaton Hammer  
- Parting Shot  

Koraidon @ Ability Shield  
Ability: Fur Coat  
EVs: 248 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Jolly Nature  
- Knock Off  
- Mortal Spin  
- Triple Arrows  
- Strength Sap  

Arceus-Poison @ Heavy-Duty Boots  
Ability: Good as Gold  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD / 252 Spe  
Careful Nature  
- Noxious Torque  
- Teleport  
- Recover  
- Stone Axe  

Ting-Lu @ Assault Vest  
Ability: Regenerator  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpD  
Sassy Nature  
IVs: 0 Spe  
- U-turn  
- Knock Off  
- Dragon Tail  
- Mortal Spin