Dianheria the Gelidfloria

+1: Exile the top 3 cards of your library. From the cards she has exiled, you may put a land card into play or a snow creature into your hand.
-4: Creatures you control get +3/+3 until and Trample end of turn. At end of turn, untap any snow creatures you control.
-6: You gain X life and draw X cards, where X is the number of snow permanents you control.