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 - $2.500
Lightly Played - $2.000
Moderately Played - $1.800
Heavily Played - $1.500
Damaged - $1.300
Near Mint Spanish - $2.500
Lightly Played Spanish - $2.000
Moderately Played Spanish - $1.800
Heavily Played Spanish - $1.500
Damaged Spanish - $1.300
Foil Prices
Near Mint Foil - $12.600
Lightly Played Foil - $10.100
Moderately Played Foil - $8.800
Heavily Played Foil - $7.600
Damaged Foil - $6.300
Near Mint Foil Spanish - $12.600
Lightly Played Foil Spanish - $10.100
Moderately Played Foil Spanish - $8.800
Heavily Played Foil Spanish - $7.600
Damaged Foil Spanish - $6.300