When I laid my eye on this card artwork, I knew it had to be in the game. I am quite sensitive to fitting theme artwork and will build spells around it if I can.
This is one of several Arcanes that will gain you a night action. You cast them during the day and you pick your target during the night. This is probably the first time that the card is equally priced for good&evil, normally the RB card is more expensive for the wolves. But in this case, it has a potential extra effect, if handled by a villager.
Use this on your secret
wolf vampire read and if (s)he ends up having a night action, you have gotten a very good deal for your three mana!
Besides roleblocks, expects peeks, vigs, watches, tracks and maybe some other night actions to be available through cards as well. Do not expect the more powerful night actions to be common (black expansion symbol)I as well though ...