Derived from the elusive skullcap mushroom, adventurers anticipating encounters with the undead keep at least a few applications of this expensive substance nearby. Summary::Bonebreaker applied to any weapon provides a +1 bonus to the weapon’s attack and damage rolls for the next 2d4 rounds whenever the wielder attacks corporeal undead. Coating the weapon with an application of bonebreaker requires a full round action that provokes an attack of opportunity. One application costs Cost::300 gp.