At the beginning of your upkeep, remove a -1/-1 counter from each creature you control. Persist (When this creature dies, if it had no -1/-1 counters on it, return it to the battlefield under its owner's control with a -1/-1 counter on it.)
NM-Mint - $1.00
Lightly Played - $0.90
Moderately Played - $0.80
Heavily Played - $0.70
Damaged - $0.50
NM-Mint Non English - $1.00
Lightly Played Non English - $0.90
Moderately Played Non English - $0.80
Heavily Played Non English - $0.70
Damaged Non English - $0.50
Foil Prices
NM-Mint Foil - $4.20
Lightly Played Foil - $3.80
Moderately Played Foil - $3.30
Heavily Played Foil - $2.90
Damaged Foil - $2.10
NM-Mint Foil Non English - $4.20
Lightly Played Foil Non English - $3.80
Moderately Played Foil Non English - $3.30
Heavily Played Foil Non English - $2.90
Damaged Foil Non English - $2.10