Jacen, Uncontrollable

+2: Tap all human creature cards target opponent controls. They do not untap during their next untap phase.
-4: Your creatures gain "landwalk' until end of turn, where "land" is determined by the majority land type of your opponent.
-12: Scatter all of target opponents cards across the room. Opponent must gather the cards and draw 7 cards from their new library.