Madoka, Magical Girl

Flying, vigilance
I Will Protect Your Wish — At the beginning of
your end step, exile cards from the top of your
library until you exile an Angel creature card.
You gain life equal to that card's mana value.
Put that card into your hand.
Ultimate Wish — {t},{2}{w}{u}{b}{r}{g}: Exile
Madoka, then return her to the battlefield
transformed.