Mewtwo-Mega-X @ Choice Band  
Ability: Steadfast  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Zen Headbutt  
- Low Kick  
- Knock Off  
- Ice Punch  

Tyranitar-Mega @ Leftovers  
Ability: Sand Stream  
Tera Type: Rock  
EVs: 248 HP / 56 Def / 204 SpD  
Careful Nature  
- Stealth Rock  
- Pursuit  
- Rock Blast  
- Foul Play  

Zacian-Crowned @ Lum Berry  
Ability: Intrepid Sword  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Swords Dance  
- Behemoth Blade  
- Play Rough  
- Close Combat  

Arceus-Fairy @ Earth Plate  
Ability: Multitype  
EVs: 240 HP / 252 Def / 16 Spe  
Bold Nature  
IVs: 0 Atk  
- Judgment  
- Defog  
- Recover  
- Toxic  

Groudon-Primal @ Groundium Z  
Ability: Desolate Land  
Tera Type: Ground  
EVs: 152 HP / 204 Atk / 152 Spe  
Adamant Nature  
- Precipice Blades  
- Toxic  
- Dragon Tail  
- Stone Edge  

Koraidon @ Choice Scarf  
Ability: Orichalcum Pulse  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Low Kick  
- Dragon Claw  
- Flare Blitz  
- U-turn