Nihilus, Lord of Hunger

{2}, Sacrifice another creature: Each opponent
loses X life and you gain X life, where X is that creature's total converted mana cost.
Pay X life: Destroy target creature with converted mana cost X or less, gain life equal to that creature's converted mana cost.
He is a wound in the Force, more presence than flesh,
and in his wake life dies... sacrificing itself to
his hunger.