Fetid Scumpond

{2}{b}{g}: Return Fetid Scumpond from your graveyard to the battlefield under your control.
When Fetid Scumpond enters the battlefield, if it entered from your graveyard,
mold 4.
{2}, Sacrifice a nontoken creature: Target creature gets +X/+X until end of turn, where X is the number of creature cards in your graveyard.