Tyranitar-Mega @ Tyranitarite  
Ability: Sand Stream  
EVs: 248 HP / 8 Def / 252 SpD  
Careful Nature  
- Rock Tomb  
- Foul Play  
- Pursuit  
- Rest  

Zygarde @ Leftovers  
Ability: Power Construct  
EVs: 16 HP / 220 Atk / 36 Def / 236 Spe  
Impish Nature  
- Dragon Dance  
- Substitute  
- Thousand Arrows  
- Dragon Tail  

Ho-Oh @ Heavy-Duty Boots  
Ability: Regenerator  
EVs: 248 HP / 208 Def / 52 SpD  
Impish Nature  
- Sacred Fire  
- Brave Bird  
- Toxic  
- Defog  

Necrozma-Dusk-Mane @ Rocky Helmet  
Ability: Prism Armor  
EVs: 248 HP / 164 Def / 96 SpD  
Careful Nature  
- Sunsteel Strike  
- Moonlight  
- Toxic  
- Knock Off  

Zacian @ Rusted Sword  
Ability: Intrepid Sword  
EVs: 252 Atk / 4 SpD / 252 Spe  
Adamant Nature  
- Behemoth Blade  
- Close Combat  
- Wild Charge  
- Substitute  

Groudon-Primal @ Red Orb  
Ability: Desolate Land  
EVs: 248 HP / 56 Def / 204 SpD  
Impish Nature  
- Stealth Rock  
- Precipice Blades  
- Stone Edge  
- Rest