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 Foil - £3.30
Lightly Played Foil - £2.80
Moderately Played Foil - £2.30
Heavily Played Foil - £1.60
Damaged Foil - £1.00
Near Mint Foil Non English - £3.30
Lightly Played Foil Non English - £2.80
Moderately Played Foil Non English - £2.30
Heavily Played Foil Non English - £1.60
Damaged Foil Non English - £1.00