Dimitir, Head Diviner

+2: Draw a card, then reveal a card from your hand. Target opponent loses life equal to half the revealed card's converted mana cost (round down).
-3: Put two 1/1 blue wizard creature tokens with tap: scry 1 onto the battlefield.
-X: Scry X, then reveal the top card of your library, target opponent loses life equal to its converted mana cost. Put that card into your hand.