The Dathomirian poison dart refers to a specific kind of poison dart that the Nightsisters from the planet Dathomir employed. In the era of the Clone Wars, Asajj Ventress, who was once a Sith acolyte, made use of this dart to impair the senses of Count Dooku. This was part of her attempt to get even with him for his act of treachery during the Battle of Sullust.