Dark Magic

Shroud. If damage would be dealt to you by other sources prevent that damage, you get fate counters equal to the amount of damage prevented, then if you have 10 or more fate counters you lose the game. When Dark Magic enters the battlefield your life total becomes 3.
{t}: You gain one life, each opponent sacrifices a creature.
{t}, Pay 2 life: Return target creature from your graveyard to the battlefield.
{t}, Pay 6 life: Destroy all creatures, they can't be regenerated.