### Gray Ooze

*Medium ooze, unaligned*

**Armor Class** 8

**Hit Points** 22 (3d8+9)

**Speed** 10 ft., climb 10 ft.

| STR      | DEX      | CON      | INT      | WIS      | CHA      |
|:--------:|:--------:|:--------:|:--------:|:--------:|:--------:|
| 12 (+1)  | 6 (-2)   | 16 (+3)  | 1 (-5)   | 6 (-2)   | 2 (-4)   |

**Skills** Stealth +2

**Damage Resistances** acid, cold, fire

**Condition Immunities** blinded, charmed, deafened, exhaustion, frightened, prone

**Senses** blindsight 60 ft. (blind beyond this radius), passive Perception 8

**Languages** -

**Challenge** 1/2 (100 XP)

***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.

###### Actions

***Pseudopod***. *Melee Weapon Attack:* +3 to hit, reach 5 ft., one target. *Hit:* 4 (1d6+1) bludgeoning damage plus 7 (2d6) acid damage, and if the target 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.