Festercreep enters the battlefield with a +1/+1 counter on it. {1}{B}, Remove a +1/+1 counter from Festercreep: All other creatures get -1/-1 until end of turn.
A single festercreep isn't alone. It's already an infestation.
Near Mint - $0.25
Lightly Played - $0.24
Moderately Played - $0.20
Heavily Played - $0.15
Damaged - $0.13
Near Mint Non-English - $0.25
Lightly Played Non-English - $0.24
Moderately Played Non-English - $0.20
Heavily Played Non-English - $0.15
Damaged Non-English - $0.13