Shawn, Keeper of Buckets

+4: Flip a coin: If you win the flip, gain 10 life. If you lose, Your opponent gains 10 life.
-2: Flip a coin: If you win, Target opponent reveals their hand, and you choose a card. they discard it. Your opponent does this if you loose.
-12: Flip a coin: If you win, you win the game. If you lose, your opponent wins the game.