Zul'Nizz, The Black Harvest

When Zul'Nizz, The Black Harvest enters the
battlefield, put an X/X black Demon creature
token into play, where X is equal to Zul'Nizz,
The Black Harvest's casting cost.
{b}{t}: Return a card from your
graveyard to your hand, you lose life equal to
it's converted mana cost.