Insatiable Ghoul

When Insatiable Ghoul enters the battlefield, target creature gets -3/-3 until end of turn.
{t}, Sacrifice a creature or exile two creatures from your graveyard: Put a stress counter on target creature.
{3}{b}{b}, {t}: Insatiable Ghoul has Horror until end of turn. (For each card with a different name that has Horror, decrease the required stress needed to
sacrifice a creature by 1.)