When killed, Blades of Crota drop a Cleaver for use by Guardians. Blades of Crota also have a chance of dropping a Husk of the Pit. The Blades of Crota were introduced in Update 1.1 just before the release of The Dark Below. The world event was removed in Update 1.2.0, but Guardians can still find Blades of Crota in the story mission Fist of Crota.