Acidic Glavenus

Kicker {4}
Delve can be used to help pay for Acidic
Glavenus' kicker cost and other kicker costs you
control.
When Acidic Glavenus enters the battlefield, if it
was kicked, cards in your graveyard have dredge
X, where X is their converted mana cost -1 for as
long as you control Acidic Glavenus. (A card
can't have dredge 0.)