Whenever Sludge Monster enters the battlefield or attacks, put a slime counter on up to one other target creature. Non-Horror creatures with slime counters on them lose all abilities and have base power and toughness 2/2.
NM-Mint Foil - $2.50
Lightly Played Foil - $2.20
Moderately Played Foil - $2.00
Heavily Played Foil - $1.70
Damaged Foil - $1.30
NM-Mint Foil Non English - $2.50
Lightly Played Foil Non English - $2.20
Moderately Played Foil Non English - $2.00
Heavily Played Foil Non English - $1.70
Damaged Foil Non English - $1.30