Creature — Incarnation - (uncommon)
Swampwalk (This creature can't be blocked as long as defending player controls a Swamp.)
As long as Filth is in your graveyard and you control a Swamp, creatures you control have swampwalk.
"As the portal closed, Filth oozed through. The stench of evil followed it in."
—*Scroll of Beginnings*
