When Contagion Engine enters the battlefield, put a -1/-1 counter on each creature target player controls. {4}, {T}: Proliferate, then proliferate again. (Choose any number of permanents and/or players, then give each another counter of each kind already there. Then do it again.)
Near Mint - $21.40
Lightly Played - $17.10
Moderately Played - $15.00
Heavily Played - $12.80
Damaged - $10.70
Near Mint Spanish - $21.40
Lightly Played Spanish - $17.10
Moderately Played Spanish - $15.00
Heavily Played Spanish - $12.80
Damaged Spanish - $10.70
Foil Prices
Near Mint Foil - $40.30
Lightly Played Foil - $32.20
Moderately Played Foil - $28.20
Heavily Played Foil - $24.20
Damaged Foil - $20.20
Near Mint Foil Spanish - $40.30
Lightly Played Foil Spanish - $32.20
Moderately Played Foil Spanish - $28.20
Heavily Played Foil Spanish - $24.20
Damaged Foil Spanish - $20.20