Sarkhan the Mad [Rise of the Eldrazi]

0: Reveal the top card of your library and put it into your hand. Sarkhan the Mad deals damage to himself equal to that card's converted mana cost. −2: Target creature's controller sacrifices it, then that player creates a 5/5 red Dragon creature token with flying. −4: Each Dragon creature you control deals damage equal to its power to target player or planeswalker.