, Sacrifice a creature: Regenerate Corrupted Harvester.
"Before the blessed assault begins, we must seek specimens that are well-adapted to our way of . . . life." —Sheoldred, Whispering One
Official Rulings for Corrupted Harvester
1/1/2011 : You may sacrifice Corrupted Harvester to pay for its own regeneration ability. If you do, however, it won't regenerate. It'll just end up in its owner's graveyard as a result of the sacrifice.
Others who bought Corrupted Harvester also bought...