Groudon-Primal @ Red Orb  
Ability: Desolate Land  
Tera Type: Flying  
EVs: 188 Atk / 100 SpD / 220 Spe  
Adamant Nature  
- Spikes  
- Precipice Blades  
- Rock Tomb  
- Swords Dance  

Necrozma-Dusk-Mane @ Leftovers  
Ability: Prism Armor  
Tera Type: Grass  
EVs: 252 HP / 68 Def / 188 SpD  
Impish Nature  
- Stealth Rock  
- Sunsteel Strike  
- Toxic  
- Moonlight  

Ho-Oh @ Heavy-Duty Boots  
Ability: Regenerator  
Shiny: Yes  
Tera Type: Grass  
EVs: 248 HP / 204 Def / 56 SpD  
Impish Nature  
- Sacred Fire  
- Toxic  
- Defog  
- Brave Bird  

Koraidon @ Choice Scarf  
Ability: Orichalcum Pulse  
Tera Type: Fighting  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Collision Course  
- U-turn  
- Flare Blitz  
- Dragon Claw  

Marshadow @ Spell Tag  
Ability: Technician  
Tera Type: Ghost  
EVs: 252 Atk / 4 Def / 252 Spe  
Jolly Nature  
- Spectral Thief  
- Close Combat  
- Shadow Sneak  
- Ice Punch  

Arceus-Water @ Splash Plate  
Ability: Multitype  
Tera Type: Grass  
EVs: 248 HP / 136 Def / 124 Spe  
Bold Nature  
IVs: 0 Atk  
- Judgment  
- Toxic  
- Taunt  
- Recover