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 - $21.00
Lightly Played - $16.80
Moderately Played - $14.70
Heavily Played - $12.60
Damaged - $10.50
Near Mint Spanish - $21.00
Lightly Played Spanish - $16.80
Moderately Played Spanish - $14.70
Heavily Played Spanish - $12.60
Damaged Spanish - $10.50
Foil Prices
Near Mint Foil - $41.00
Lightly Played Foil - $32.80
Moderately Played Foil - $28.70
Heavily Played Foil - $24.60
Damaged Foil - $20.50
Near Mint Foil Spanish - $41.00
Lightly Played Foil Spanish - $32.80
Moderately Played Foil Spanish - $28.70
Heavily Played Foil Spanish - $24.60
Damaged Foil Spanish - $20.50