Volcarona @ Heavy-Duty Boots  
Ability: Flame Body  
EVs: 252 HP / 108 Def / 148 Spe  
Timid Nature  
IVs: 0 Atk  
- Roost  
- Quiver Dance  
- Bug Buzz  
- Flamethrower  

Reuniclus @ Grassium Z  
Ability: Magic Guard  
EVs: 252 HP / 212 Def / 44 Spe  
Bold Nature  
IVs: 0 Atk  
- Calm Mind  
- Recover  
- Psyshock  
- Energy Ball  

Latios-Mega (M) @ Latiosite  
Ability: Levitate  
EVs: 4 HP / 252 SpA / 252 Spe  
Timid Nature  
- Earthquake  
- Psychic  
- Roost  
- Ice Beam  

Toxapex @ Black Sludge  
Ability: Regenerator  
EVs: 252 HP / 252 Def / 4 SpD  
Bold Nature  
IVs: 0 Atk  
- Scald  
- Toxic Spikes  
- Haze  
- Recover  

Garchomp @ Leftovers  
Ability: Rough Skin  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Stealth Rock  
- Swords Dance  
- Earthquake  
- Stone Edge  

Corviknight @ Leftovers  
Ability: Pressure  
EVs: 252 HP / 4 Def / 252 SpD  
Careful Nature  
- Defog  
- Roost  
- U-turn  
- Iron Head