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 - $9.90
Lightly Played - $8.00
Moderately Played - $7.00
Heavily Played - $6.00
Damaged - $5.00
Near Mint Spanish - $9.90
Lightly Played Spanish - $8.00
Moderately Played Spanish - $7.00
Heavily Played Spanish - $6.00
Damaged Spanish - $5.00
Foil Prices
Near Mint Foil - $28.80
Lightly Played Foil - $23.10
Moderately Played Foil - $20.20
Heavily Played Foil - $17.30
Damaged Foil - $14.40
Near Mint Foil Spanish - $28.80
Lightly Played Foil Spanish - $23.10
Moderately Played Foil Spanish - $20.20
Heavily Played Foil Spanish - $17.30
Damaged Foil Spanish - $14.40