The Gray Ooze is a Medium ooze, with Armor Class 8, 22 hit points, and Challenge Rating 1/2. A gray ooze is a mindless subterranean predator that perfectly camouflages itself as a harmless puddle or wet rock.
Amorphous. The ooze can move through a space as narrow as 1 inch wide without squeezing. Corrode Metal. Any nonmagical weapon made of metal 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 that hits the ooze is destroyed after dealing damage. The ooze can eat through 2-inch-thick, nonmagical metal in 1 round. False Appearance. While the ooze remains motionless, it is indistinguishable from an oily pool or wet rock. Armor Corrosion. If the target of a pseudopod attack is wearing nonmagical metal armor, its armor is partly corroded 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.
Common Questions
How much HP does a Gray Ooze have?
22 hit points.
What is a Gray Ooze's Challenge Rating?
Challenge Rating 1/2.
What is a Gray Ooze's Armor Class?
AC 8.
How fast can a Gray Ooze move?
Speed 10 ft. ft., climb 10 ft. ft.
Use Gray Ooze at your table
Original custom artwork found nowhere else on the web, free to view. Copy-paste the full stat block straight into your notes, a Word doc, or your VTT, or sign in to claim Gray Ooze into a ZapGM campaign and customize it further.
Official stats from the D&D 5e (Dungeons and Dragons 5th Edition) System Reference Document (SRD), free to use under its open license.