Werewolf

Werewolves (also called Lycanthropes, Loup Garou, Beasts, or even just Wolves for short) are a near-extinct supernatural shapeshifting species of individuals who unwillingly transform into large, fearsome, and extremely hostile wolves on the night of the full moon. Even in their human form, werewolves possess superhuman physical prowess, though not to the same level as a vampire, and their abilities are not as powerful compared to those they possess on the full moon while transformed. These creatures are the most dangerous enemies of vampires due to their venomous bite, which is lethal to them. Werewolves are also hardwired to kill vampires on sight in their wolf form, though they still hunt human prey whenever there are no vampires to kill.