Lithsgarm

A beast made from magic-infused ore. It is controlled by a mage and used to guard important positions. The golden necklace around its neck is inscribed with a spell that subdues the lithsgarm, with the lithsgarm obediently following whoever made it. However, if the necklace were to be removed, it would turn into a ferocious and uncontrollable monster. Since the strength of the necklace is dependant [sic] on the magic power of the person who makes it, only capable magi are able to control these monsters.