Tibalt, the Gambler

+2: Roll a six-sided-die. On a 4,5 or 6, exile the top card of your library. You may play that card this turn. On a 1, discard a card at random.
-1: Roll a six-sided-die. On a 5 or 6, Tibalt, the gambler deals 2 damage to each creature and each player. On a 1, Discard a card at random.
-6: Roll 2 six-sided-dice. Tibalt deals Damage to target Player and each creature he or she controls, equal to the sum of both dice.