Acidic Slime is a uncommon Creature — Ooze card from Magic 2012 (M12), collector number 161. Current market price: $0.22 (foil $0.93), TCGplayer market prices via Scryfall.
Deathtouch (Any amount of damage this deals to a creature is enough to destroy it.) When this creature enters, destroy target artifact, enchantment, or land.