Bonebeast
Bonebeast can be found in the following locations: Old Fortress, Ankrahmun Tombs, Helheim, Ramoa, Lich Hell, beneath Fenrock, Deeper Banuta, Vengoth Castle, Vandura Mountain, Robson's Isle, Middle Spike, Lion's Rock, Mother of Scarabs Lair, Caverna Exanima.
Bonebeast has 515 hitpoints. It is immune to earth, life drain, drowning, and death damage. It is weak against fire and holy damage. It can neither be summoned nor convinced.
Bonebeast yields 580 base experience points. Its loot can include gold coin, skull, bone, bone club, plate armor, bone shield, green mushroom, hardened bone, health potion, bonebeast trophy, and bony tail.