Mimic Stone Ooze

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Medium Ooze (mimic), Neutral

Armor Class 13 (natural armor)

Hit Points 66 (11d8+11)

Speed 20 ft. climb 20 ft.

STR 14 (+2)

DEX 8 (-1)

CON 12 (+1)

INT 1 (-5)

WIS 6 (-2)

CHA 1 (-5)

Saving Throws Con +3

Damage Vulnerabilities fire

Damage Resistances slashing; piercing

Condition Immunities blinded, charmed, deafened, frightened, paralyzed, petrified, poisoned

Senses blindsight 60 ft., passive Perception 8

Languages —

Challenge 3 (700 XP) Proficiency Bonus +2

Amorphous. The ooze can move through a space as narrow as 1 inch wide without squeezing.

Stone Mimicry. The ooze can change its appearance to mimic a stone or rock surface. While mimicking a stone, it has advantage on Dexterity (Stealth) checks made to hide.

Actions

Multiattack. The ooze makes two pseudopod attacks.

Pseudopod. Melee weapon Attack: +6 to hit, reach 10 ft., one target. Hit: 11 (2d8+2) bludgeoning damage. If the target is Medium or smaller, it must succeed on a DC 14 Strength saving throw or be grappled.

Engulf (Recharge 5-6). The ooze engulfs a creature it is grappling. The target must succeed on a DC 14 Dexterity saving throw or be engulfed, becoming restrained and taking 21 (6d6) acid damage at the start of each of the ooze's turns. The engulfed target can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success.

Environment Underdark, Mountain

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Lore & Description

Appearance

The Mimic Stone Ooze appears as a dull gray blob, perfectly blending into rocky environments. Its surface is textured and rugged, resembling the coarse grain of stone. In dim light, it can be easy to overlook due to its drab colors, making it a cunning ambush predator.

Behavior & Origins

The Mimic Stone Ooze is a creature that thrives in rocky terrains, often lying in wait to catch unsuspecting adventurers. It uses its ability to mimic stone to blend effortlessly into its environment, taking advantage of its surroundings to ambush creatures. These oozes are known for their destructive acidic properties, laying waste to anything they engulf.

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Generation Info

Original prompt:
"A gray ooze that mimics stone"

Created: Jan 28, 2026
Modified: Jun 1, 2026

Mimic Stone Ooze

Actions

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Lore & Description

Appearance

Behavior & Origins

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Generation Info

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