The Skull Bow is a Huntress weapon. It is a core drop weapon.
Other names include: Crying Devil, Skeleton Bow, Hellraiser, Vertebrae, Death's Head, Grave Digger, Undertaker, Crossbone and Embalmer.
As of PC patch 7.16c, the Skull Bow now pierces 4 small enemies.
HungryApp - Mobile only version.