Discord, Chaos Incarnate

+2: Each player exiles the top card of their library. Starting with you, each player may cast a card exiled this way without paying its mana cost.
+1: exile target non-land permanent. Its owner reveals the top card of their library. If it's a permanent, they put it onto the battlefield.
-13: Choose heads or tails. starting with you, each player flips a coin. Each player who landed on the chosen result loses the game.