Celestia Ludenberg

+2: Each player reveals a random card from their library, the player who owns the card with the lowest mana cost loses 3 life.
-3: Each opponent rolls two dice, player with the lowest roll loses life equal to the result of their roll and discards three cards.
-10: Target opponent flips a coin, if it's tails you gain control of all nonland permanents they own and two basic lands. If it's heads you draw six.