When Contagion Clasp enters the battlefield, put a -1/-1 counter on target creature.
{4}, {T}: Proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)
Near Mint - $0.75
Near Mint Non-English - $0.75
Lightly Played - $0.75
Lightly Played Non-English - $0.75
Moderately Played - $0.50
Moderately Played Non-English - $0.50
Heavily Played - $0.50
Heavily Played Non-English - $0.50
Damaged - $0.50
Damaged Non-English - $0.50