Harkhan, Paragon of Insights

Flying, vigilance, menace
At the beginning your upkeep, scry 4.
Whenever Harkhan, Paragon of Insights attacks, choose odd or even, then reveal the top 4 cards of your library and put up to one sphinx card with a converted mana cost of the chosen type onto the battlefield and the rest on the bottom of your library in any order. You gain life equal to the number of sphinxes you control and each opponent loses that much life.