Apollo (Necrozma-Dusk-Mane) @ Ultranecrozium Z  
Ability: Prism Armor  
Tera Type: Psychic  
EVs: 252 Atk / 4 SpD / 252 Spe  
Adamant Nature  
- Photon Geyser  
- Sunsteel Strike  
- Outrage  
- Earthquake  

Hephaestus (Groudon-Primal) @ Red Orb  
Ability: Desolate Land  
Shiny: Yes  
Tera Type: Ground  
EVs: 252 HP / 200 Def / 56 SpD  
Jolly Nature  
- Precipice Blades  
- Heat Crash  
- Stealth Rock  
- Toxic  

Erebus (Marshadow) @ Life Orb  
Ability: Technician  
Tera Type: Dark  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Close Combat  
- Spectral Thief  
- Pursuit  
- Shadow Sneak  

Xerneas @ Power Herb  
Ability: Fairy Aura  
Hidden Power: Ground  
Tera Type: Fairy  
EVs: 248 HP / 252 SpA / 8 SpD  
Modest Nature  
IVs: 0 Atk  
- Geomancy  
- Moonblast  
- Hidden Power [Ground]  
- Psyshock  

Eternatus @ Black Sludge  
Ability: Pressure  
Tera Type: Poison  
EVs: 252 HP / 4 SpA / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Dynamax Cannon  
- Recover  
- Sludge Bomb  
- Flamethrower  

Ho-Oh @ Heavy-Duty Boots  
Ability: Regenerator  
Tera Type: Grass  
EVs: 248 HP / 8 Atk / 252 SpD  
Careful Nature  
- Sacred Fire  
- Whirlwind  
- Defog  
- Earthquake