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.
Near Mint - $500
Lightly Played - $400
Moderately Played - $300
Heavily Played - $300
Damaged - $200
Near Mint Spanish - $500
Lightly Played Spanish - $400
Moderately Played Spanish - $300
Heavily Played Spanish - $300
Damaged Spanish - $200