Necrozma-Dusk-Mane @ Rocky Helmet  
Ability: Prism Armor  
Tera Type: Psychic  
EVs: 252 HP / 4 Atk / 252 Def  
Impish Nature  
- Stealth Rock  
- Sunsteel Strike  
- Toxic  
- Morning Sun  

Marshadow @ Marshadium Z  
Ability: Technician  
Tera Type: Ghost  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Poltergeist  
- Spectral Thief  
- Close Combat  
- Pursuit  

Ho-Oh @ Heavy-Duty Boots  
Ability: Regenerator  
Tera Type: Fire  
EVs: 248 HP / 252 Atk / 8 SpD  
Adamant Nature  
- Sacred Fire  
- Brave Bird  
- Toxic  
- Earthquake  

Groudon-Primal @ Red Orb  
Ability: Desolate Land  
Tera Type: Ground  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Precipice Blades  
- Earthquake  
- Fire Punch  
- Swords Dance  

Xerneas @ Power Herb  
Ability: Fairy Aura  
Tera Type: Fairy  
EVs: 248 HP / 8 Atk / 252 SpA  
Mild Nature  
- Geomancy  
- Moonblast  
- Thunderbolt  
- Horn Leech  

Koraidon @ Leftovers  
Ability: Orichalcum Pulse  
Tera Type: Fighting  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Swords Dance  
- Low Kick  
- Dragon Claw  
- Flame Charge