Bismarck, Knight of One

+1: Bismarck, Knight of One becomes a 2/2 Human Pilot with hexproof that's still a planeswalker until end of turn.
-2: Reveal cards from your library until you reveal a Knightmare card then shuffle your library. Put that card into play tapped on your next upkeep.
-4: Each opponent must reveal a card from their hand. If they do not play it on their next turn they lose the game.