I love the combination of the name, ability, and image of this card. Wolf is completely the right animal, IMO, because this is one of the roles wolves play in mythology and culture: Romulus and Remus, Mogli, and many more (I bet). In our imagination, wolves are so motherly and protective they will care for creatures that are obviously not their own. the balance of the card is really cool too, since it is the opponents choice whether or not to play a shield.
I think the name is perfect, but fyi there is a wolf constellation called lupus, that maybe fits with the light idea more, even if not in the title, it could be referenced in the image.
ooh ooh, what if there was a way to transform lycanthrope into this (a la mummy/pharaoh), instead of reverse time it could be purify! (the last part is just a crazy idea, probably too complicated to be taken seriously)