Requiem

Equip {t}{p/c} equipped creature gains every creature slain by this one adds X +1/+1 counters to
equipped creature X being the cost of the slain creature including attached cards
Voided(anytime there are more cards in your exile
then the cost of this card equipped creatures gain Lifelink)
they say it was an Archangel's Left hand for a Long Forgotten Demon and that it was cast away for
fusing with Trillions of souls