Lux, The Hidden

+1: Reveal the top card of you deck. If that cards CMC is less then 3. You may cast without paying its mana cost. Otherwise put it into your hand.
+1: You may put a copy of any creature on your side of the battlefield. Then Exile it.
-4: Lux become a copy of target creature in a graveyard. Then Lux gains "{1}{u}: Exile Lux then return it to the battlefield."