At the beginning of your upkeep, destroy the creature with the least power. It can't be regenerated. If two or more creatures are tied for least power, you choose one of them. When there are no creatures on the battlefield, sacrifice Porphyry Nodes.
NM-Mint - $0.20
NM-Mint Non English - $0.20
Lightly Played - $0.10
Lightly Played Non English - $0.10
Moderately Played - $0.10
Moderately Played Non English - $0.10
Heavily Played - $0.10
Heavily Played Non English - $0.10
Damaged - $0.10
Damaged Non English - $0.10
Foil Prices
NM-Mint Foil - $0.60
NM-Mint Foil Non English - $0.60
Lightly Played Foil - $0.60
Lightly Played Foil Non English - $0.60
Moderately Played Foil - $0.50
Moderately Played Foil Non English - $0.50
Heavily Played Foil - $0.50
Heavily Played Foil Non English - $0.50
Damaged Foil - $0.40
Damaged Foil Non English - $0.40