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 - $2.50
Lightly Played - $2.00
Moderately Played - $1.80
Heavily Played - $1.50
Damaged - $1.30
Near Mint Spanish - $2.50
Lightly Played Spanish - $2.00
Moderately Played Spanish - $1.80
Heavily Played Spanish - $1.50
Damaged Spanish - $1.30
Foil Prices
Near Mint Foil - $12.60
Lightly Played Foil - $10.10
Moderately Played Foil - $8.80
Heavily Played Foil - $7.60
Damaged Foil - $6.30
Near Mint Foil Spanish - $12.60
Lightly Played Foil Spanish - $10.10
Moderately Played Foil Spanish - $8.80
Heavily Played Foil Spanish - $7.60
Damaged Foil Spanish - $6.30