Commander creatures you own have "Whenever this creature becomes tapped, it and other creatures you control that share a creature type with it each get +2/+0 and gain undying until end of turn." (When a creature with undying 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.)
Near Mint - $9.25
Lightly Played - $8.75
Moderately Played - $7.50
Heavily Played - $5.50
Damaged - $4.75
Near Mint Non-English - $9.25
Lightly Played Non-English - $8.75
Moderately Played Non-English - $7.50
Heavily Played Non-English - $5.50
Damaged Non-English - $4.75
Foil Prices
Near Mint Foil - $44.25
Lightly Played Foil - $42.00
Moderately Played Foil - $35.50
Heavily Played Foil - $26.50
Damaged Foil - $22.25
Near Mint Foil Non-English - $44.25
Lightly Played Foil Non-English - $42.00
Moderately Played Foil Non-English - $35.50
Heavily Played Foil Non-English - $26.50
Damaged Foil Non-English - $22.25