“Bad Luck” presents us with an interesting case of the old superstition – if you carry a rabbit’s foot, you’ll have good luck. Well, not so much for the rabbits that lose their feet to help the rest of the world secure some good fortune. Throughout “Bad Luck,” we meet several new Wesen species, a “Willehara,” a rabbit like creature, and “Leporem Venators,” a raccoon like creature that knows how to wield an axe and play a creepy tune on a concertina. It seems Wesen couples who need help conceiving can purchase the foot of a Willehara to aid them with their fertility.