Carracosta @ Heavy-Duty Boots  
Ability: Sturdy  
EVs: 252 Atk / 4 SpA / 252 Spe  
Naive Nature  
- Hydro Pump  
- Iron Head  
- Aqua Jet  
- Shell Smash  

Diancie-Mega @ Diancite  
Ability: Magic Bounce  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Moonblast  
- Rock Polish  
- Earth Power  
- Encore  

Regirock @ Chesto Berry  
Ability: Sturdy  
EVs: 252 HP / 252 Def / 4 SpD  
Bold Nature  
IVs: 0 Atk  
- Iron Defense  
- Body Press  
- Rock Polish  
- Rest  

Omastar @ Chople Berry  
Ability: Shell Armor  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Shell Smash  
- Earth Power  
- Surf  
- Ice Beam  

Cradily (M) @ Custap Berry  
Ability: Storm Drain  
EVs: 252 HP / 252 Def / 4 SpD  
Relaxed Nature  
IVs: 0 Atk  
- Stealth Rock  
- Grass Knot  
- Toxic  
- Endure  

Terrakion @ Choice Scarf  
Ability: Justified  
EVs: 252 Atk / 4 Def / 252 Spe  
Jolly Nature  
- Close Combat  
- Earthquake  
- Iron Head  
- Quick Attack