7
95 (10d12 + 30)
20 ft., climb 20 ft.
acid, cold, fire, lightning, slashing
blinded, charmed, deafened, exhaustion, frightened, prone
blindsight 60ft. (blind beyond this radius)
understands Dwarven but can't speak
6
The ooze can move through a space as narrow as 1 inch wide without squeezing.
A creature that touches the ooze or hits it with a melee attack while within 5 feet of it takes 4 (1d8) acid damage. Any nonmagical weapon made of metal or wood that hits the ooze corrodes. After dealing damage, the weapon takes a permanent and cumulative -1 penalty to damage rolls. If its penalty drops to -5, the weapon is destroyed. Nonmagical ammunition made of metal or wood that hits the ooze is destroyed after dealing damage. The ooze can eat through 2-inch thick, nonmagical wood or metal in 1 round.
If the ooze is subjected to fire damage, it ignites. At the start of each of the ooze's turns, each creature within 5 feet of it takes 10 (3d6) fire damage, and flammable objects within 5 feet that aren't being worn or carried ignite. A creature that touches the ooze or hits it with a melee attack while within 5 feet of it takes 10 (3d6) fire damage.
The ooze can climb difficult surfaces, including upside down on ceilings, without needing to make an ability check.
Melee Weapon Attack: +5 to hit, reach 5ft., one target. Hit: 6 (1d6 + 3) bludgeoning damage plus 18 (4d8) acid damage. In addition, nonmagical armor worn by the target is partly dissolved and takes a permanent and cumulative -1 penalty to the AC it offers. The armor is destroyed if the penalty reduces its AC to 10.