Werewolf/Penny Dreadful

Turn into savage, wolf-like beasts on a full moon. The transformation is not severe, look humanoid, but large and with wolf-like eyes, ears, claws, and fangs. The transformation can be fought but not prevented. Mindless predators when turned, prey on animals and humans for food, severely mutilate, dismembered limbs. Strong and ferocious predators, unable to turn outside of a full moon, no control over their nature once transformed. Effortlessly rip through flesh, throw grown men through the air, break through wooden walls. Strong steel chains can restrain them. Can kill and maim a large number of people in rapid succession. Tough. Sharp claws, pronounced canine fangs, can easily crush bones. Can turn others through blood contact. Indiscriminate killings and slaughtering rooms full of people.