Monsters with two forms – one human and one beastly.
Lycanthropes are were-creatures, particularly those in whom the disease permits assumption of a hybrid form of the human and animal. They can be hit by normal weapons, but silver weapons might inflict additional damage. If any character is brought below 50% hit points by a lycanthrope, the character will become a lycanthrope himself.
License: Monster Compendium 0e OGL