This is the item needed to tame an Undead Cavebear . It has a chance of breaking when used. It was a myth that Undead Gladiators dropped it since the name had analogy with the creature because of the roman name and the roman gladiators.
Failed: The undead cavebear is growling at you.
Failed: The undead cavebear ran away.
Succeeded: You tamed the undead cavebear.