Chromium, the Mercurial

+1: Until end of turn, Chromium becomes a 2/2 Human creature with indestructible and hexproof that can't be blocked and is still a planeswalker.
-5: Tap all non-land permanents your opponents control. They don't untap during your opponents' next untap step.
-12: Search your library for up to five cards with different names and reveal them. Shuffle your library then put those cards into your hand.