Crawdaunt @ Boomerang  
Ability: Adaptability  
EVs: 252 Atk / 4 SpD / 252 Spe  
Adamant Nature  
- Swords Dance  
- Fling  
- Crabhammer  
- Aqua Jet  

Crawdaunt @ Choice Band  
Ability: Adaptability  
EVs: 252 Atk / 4 SpD / 252 Spe  
Adamant Nature  
- Crabhammer  
- Knock Off  
- Aqua Jet  
- Close Combat