Weeping Angel
Artifact Creature — Alien Angel 3/2
Flash
First strike, vigilance
Whenever an opponent casts a spell, if Weeping Angel is a creature, put a Stone counter on it.
As long as there is a Stone counter on Weeping Angel, isn't a creature.
If Weeping Angel would deal combat damage to a creature, prevent that damage and that creature's owner shuffles it into their library. You get
.
At the beginning of each combat step, if Weeping Angel is a creature, you get
.