Necrozma-Dusk-Mane @ Rocky Helmet  
Ability: Prism Armor  
Tera Type: Flying  
EVs: 248 HP / 252 Def / 8 Spe  
Impish Nature  
- Sunsteel Strike  
- Knock Off  
- Stealth Rock  
- Moonlight  

Mewtwo-Mega-X @ Choice Scarf  
Ability: Steadfast  
Tera Type: Ghost  
EVs: 8 HP / 252 Atk / 248 Spe  
Adamant Nature  
- Low Kick  
- Zen Headbutt  
- Ice Punch  
- Knock Off  

Groudon-Primal @ Leftovers  
Ability: Desolate Land  
Tera Type: Fairy  
EVs: 248 HP / 252 Def / 8 Spe  
Relaxed Nature  
- Earthquake  
- Lava Plume  
- Spikes  
- Protect  

Tyranitar-Mega @ Assault Vest  
Ability: Sand Stream  
Tera Type: Ground  
EVs: 248 HP / 8 Atk / 252 SpD  
Sassy Nature  
IVs: 0 Spe  
- Knock Off  
- Rock Slide  
- Earthquake  
- Dragon Tail  

Dialga-Origin @ Assault Vest  
Ability: Pressure  
Tera Type: Ghost  
EVs: 248 HP / 240 SpD / 20 Spe  
Calm Nature  
- Draco Meteor  
- Flash Cannon  
- Earth Power  
- Dragon Tail  

Giratina-Origin @ Leftovers  
Ability: Levitate  
Tera Type: Steel  
EVs: 248 HP / 244 Def / 16 Spe  
Impish Nature  
- Poltergeist  
- Dragon Tail  
- Will-O-Wisp  
- Defog