Miokrin, Celestial Son

X: You lose X Life and exile X Cards from the top of your library. Then you may Cast any of those cards until end of turn.
-X: You may play any exiled card with converted mana cost X or less without paying its mana cost. If you don't own it, lose X life and discard a card
-15: You get an emblem with, You may play any card from exile. If you cast a card that you own from exile, you gain 5 Life and Draw a card.