Gallade-Mega (M) @ Galladite  
Ability: Justified  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Drain Punch  
- Earthquake  
- Ice Punch  
- Thunder Wave  

Groudon-Primal @ Red Orb  
Ability: Desolate Land  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Dragon Claw  
- Precipice Blades  
- Heat Crash  
- Iron Head  

Eternatus @ Rowap Berry  
Ability: Pressure  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Dynamax Cannon  
- Sludge Wave  
- Toxic  
- Flamethrower  

Calyrex-Shadow @ Focus Sash  
Ability: As One (Spectrier)  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Astral Barrage  
- Calm Mind  
- Baton Pass  
- Psychic  

Marshadow @ Focus Sash  
Ability: Technician  
EVs: 252 Atk / 4 SpD / 252 Spe  
Adamant Nature  
- Acrobatics  
- Force Palm  
- Poltergeist  
- Shadow Sneak  

Zacian-Crowned @ Rusted Sword  
Ability: Intrepid Sword  
EVs: 4 HP / 252 Atk / 252 Spe  
Jolly Nature  
- Behemoth Blade  
- Substitute  
- Play Rough  
- Swords Dance