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 - $3.000
Lightly Played - $2.400
Moderately Played - $2.100
Heavily Played - $1.800
Damaged - $1.500
Near Mint Spanish - $3.000
Lightly Played Spanish - $2.400
Moderately Played Spanish - $2.100
Heavily Played Spanish - $1.800
Damaged Spanish - $1.500
Foil Prices
Near Mint Foil - $27.300
Lightly Played Foil - $21.800
Moderately Played Foil - $19.100
Heavily Played Foil - $16.400
Damaged Foil - $13.700
Near Mint Foil Spanish - $27.300
Lightly Played Foil Spanish - $21.800
Moderately Played Foil Spanish - $19.100
Heavily Played Foil Spanish - $16.400
Damaged Foil Spanish - $13.700