Diancie-Mega @ Diancite  
Ability: Clear Body  
Tera Type: Rock  
EVs: 4 Atk / 252 SpA / 252 Spe  
Hasty Nature  
- Diamond Storm  
- Moonblast  
- Earth Power  
- Spikes  

Eternatus @ Power Herb  
Ability: Pressure  
Tera Type: Dragon  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Meteor Beam  
- Sludge Bomb  
- Dynamax Cannon  
- Fire Blast  

Yveltal @ Life Orb  
Ability: Dark Aura  
Tera Type: Flying  
EVs: 4 Atk / 252 SpA / 252 Spe  
Hasty Nature  
- Dark Pulse  
- Oblivion Wing  
- Taunt  
- Sucker Punch  

Necrozma-Dusk-Mane @ Ultranecrozium Z  
Ability: Prism Armor  
Tera Type: Psychic  
EVs: 24 HP / 248 Atk / 92 Def / 4 SpD / 140 Spe  
Adamant Nature  
- Dragon Dance  
- Photon Geyser  
- Earthquake  
- Stone Edge  

Arceus @ Silk Scarf  
Ability: Multitype  
Tera Type: Normal  
EVs: 236 HP / 252 Atk / 20 Spe  
Adamant Nature  
- Extreme Speed  
- Shadow Claw  
- Swords Dance  
- Taunt  

Zacian-Crowned @ Rusted Sword  
Ability: Intrepid Sword  
Tera Type: Fighting  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Swords Dance  
- Behemoth Blade  
- Close Combat  
- Wild Charge