Regirock @ Weakness Policy  
Ability: Primordial Sea  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Relaxed Nature  
- Metronome  

Heracross-Mega @ Choice Band  
Ability: Intrepid Sword  
EVs: 252 HP / 252 Atk / 252 Def / 252 SpA / 252 SpD / 252 Spe  
Naughty Nature  
- Metronome