Golgari Warlord

As long as Golgari Warlord is on the battlefield, creatures in your graveyard have Scavenge (Exile this card from your graveyard: Put a number of +1/+1 counters equal to this card's power on target creature. Scavenge only as a sorcery.)Scavenge cost is equal to the mana cost.
Whenever you scavenge Golgari Warlord, put another non-legendary creature from exile into your graveyard.
Scavenge {3}{b}{g}, Pay 3 life