Demonic Dragon

+2: Demonic dragon becomes a 6/6 flying dragon with, " Whenever demonic dragon deals damage, return it to its owners hand."
-3: Draw 5 cards and lose 5 life. Target opponent creates a 1/1 spirit token.
-10: You get an emblem, " Whenever an opponent casts a spell for its prophecy cost, put an additional 10 prophecy counters on it."