Zuggtmoy Lady of Fungi

When Zuggtmoy Lady of Fungi enters the battlefield, create X 1/1 green Saproling creature token, where X is the number of creature cards in your graveyard.
At the beginning of your upkeep, populate. (Create a token that's a copy of a creature token you control.)
{t}, Sacrifice Saproling: You gain 2 life and draw a card.