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 - $6.90
Lightly Played Foil - $6.20
Moderately Played Foil - $5.50
Heavily Played Foil - $4.80
Damaged Foil - $3.50
NM-Mint Foil Non English - $6.90
Lightly Played Foil Non English - $6.20
Moderately Played Foil Non English - $5.50
Heavily Played Foil Non English - $4.80
Damaged Foil Non English - $3.50