This is a set of 4 Fluxx Werewolf cards (creeper included) made available to backers of the new Deluxe 'Are you a Werewolf?' set. Originally, there was supposed to be the one card, but due to the success of the campaign, the bonus was raised to four cards in total. Delivery has been organised and backers should receive them in the next couple of weeks (January 2013).
Summary based on the Kickstarter campaign blurb.