The fallen god

+1: All of the abilities cost as much life as loyalty to cast. The finale ability costs 7 life to use: Draw a card and lose 1 life.
-4: Gain control of target creature. Untap it, it gains haste until the end of turn. If it is still alive after your turn sacrifice it.
X: Target player exiles their library, there graveyard becomes their library. Every time they pick up they lose 2 life. X is this planeswalkers HP.