Pilgrims Of Dark

Hexproof
Whenever a creature an opponent controls dies,
you gain 1 Hollow counter and you may put a
Rank counter on this card
{b}{b}{b}: You may only activate this ability if there
are 3 Rank counters on this card, and you may
only activate it as a Sorcery. Exile this card and
cast a card named "Darklurker" that you own
from outside the game without paying its mana
cost