Can only be used by hunters in the Beast Mastery spec. Minimum level 39 in Shadowlands.
Forsaken hunters automatically know how to tame undead creatures. Hunters of other races must learn the skill from a Simple Tome of Bone-Binding which is a rare drop from miscellaneous Elite NPCs throughout Maldraxxus and its associated dungeons: Plaguefall and the Theater of Pain.
Location & Notes:
Located in Lair of Rezan, Zuldazar. In a cave at the back of the Temple of Rezan. Only present on days when the world quest Twisted Child of Rezan is active.