Ooh! This is a fantastic design! The flavor of a zombie makes sense for this kind of an effect, yet, you wouldn't want to do this early in the game. By making a giant zombie, you can make the creature large, and, thus, cost it more! That causes you to want to do this kind of top-of-library effect when it's the endgame! Genius!
Wow. I'm glad you like it. :)
Aaaaaaah! That art!