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 - $2.10
Lightly Played - $1.70
Moderately Played - $1.50
Heavily Played - $1.30
Damaged - $1.10
Near Mint Spanish - $2.10
Lightly Played Spanish - $1.70
Moderately Played Spanish - $1.50
Heavily Played Spanish - $1.30
Damaged Spanish - $1.10
Foil Prices
Near Mint Foil - $3.20
Lightly Played Foil - $2.60
Moderately Played Foil - $2.30
Heavily Played Foil - $2.00
Damaged Foil - $1.60
Near Mint Foil Spanish - $3.20
Lightly Played Foil Spanish - $2.60
Moderately Played Foil Spanish - $2.30
Heavily Played Foil Spanish - $2.00
Damaged Foil Spanish - $1.60