Weaver of the Hollowed Eve

Morbid -- Weaver of the Hollowed Eve enters the battlefield with two +1/+1 counters on it if a creature died this turn.
{3}{b}: Weaver of the Hollowed Eve gets +X/+X until end of turn, where X is the number of creature cards in your graveyard. Activate this ability only once each turn.
It preys on your hopes of thinking you can escape its web.