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Deals damage and has a 10% chance to flinch.
This move should never be used competitively, due to its poor Base Power, low flinch chance, and poor distribution; the move is learnt only by Cubone and Marowak. However, not only are they rare sights, they would both prefer to use the more powerful Earthquake or Bonemerang.
Earthquake is a 100 Base Power, 100% accurate alternative with no added effect.
Bonemerang is a 50 Base Power, 90% accurate alternative which hits twice.