Kastraza, The silver prophet

Flying, Devoid (This card has no Color)
At the beginning of your draw step, you may choose to name a card. If you do, reveal the
top card of your library if that card is the
named card and is a sorcery or instant it gets: Miracle {w}{u}{b} (you may cast this card for its miracle cost when you draw it if its the first
card you draw this turn.)