When Contagion Engine enters the battlefield, put a -1/-1 counter on each creature target player controls.
{4}, {T}: Proliferate, then proliferate again. (You choose any number of permanents and/or players with counters on them, then give each another counter of a kind already there. Then do it again.)
Near Mint - $4.75
Near Mint Non-English - $4.75
Lightly Played - $4.50
Lightly Played Non-English - $4.50
Moderately Played - $3.75
Moderately Played Non-English - $3.75
Heavily Played - $3.00
Heavily Played Non-English - $3.00
Damaged - $2.50
Damaged Non-English - $2.50
Foil Prices
Near Mint Foil - $35.25
Near Mint Foil Non-English - $35.25
Lightly Played Foil - $33.50
Lightly Played Foil Non-English - $33.50
Moderately Played Foil - $28.25
Moderately Played Foil Non-English - $28.25
Heavily Played Foil - $21.25
Heavily Played Foil Non-English - $21.25
Damaged Foil - $17.75
Damaged Foil Non-English - $17.75