Heart of Chaos

Whenever Heart of Chaos is tapped for mana, roll a six-sided die and apply the result:
1: Heart of Chaos deals 3 damage to you.
2: Draw a card, then discard a card.
3: Each player gains 5 life.
4: Sacrifice a creature.
5: Search your library for a card, then shuffle your library and put that card on top of it.
6: Sacrifice Heart of Chaos.