# [Gray Ooze](Mechanics\CLI\bestiary\ooze/gray-ooze-xmm.md)
*Source: Monster Manual (2024) p. 151. Available in the <span title='Systems Reference Document (5.2)'>SRD</span> and the Free Rules (2024)*
Gray oozes appear in areas affected by unpredictable magic. Magic-users who fail in their attempts to bind elemental spirits to the bodies of Constructs might also accidentally create gray oozes.
## Gray Oozes
*Hungry Slimes and Magical Failures*
- **Habitat.** Underdark
- **Treasure.** None
Gray oozes are predatory, corrosive slimes that blend in with stony surroundings.
```statblock
"name": "Gray Ooze (XMM)"
"size": "Medium"
"type": "ooze"
"alignment": "Unaligned"
"ac": !!int "9"
"hp": !!int "22"
"hit_dice": "3d8 + 9"
"modifier": !!int "-2"
"stats":
- !!int "12"
- !!int "6"
- !!int "16"
- !!int "1"
- !!int "6"
- !!int "2"
"speed": "10 ft., climb 10 ft."
"skillsaves":
- "name": "[Stealth](Mechanics/CLI/rules/skills.md#Stealth)"
"desc": "+2"
"damage_resistances": "acid, cold, fire"
"condition_immunities": "[blinded](Mechanics/CLI/rules/conditions.md#Blinded), [charmed](Mechanics/CLI/rules/conditions.md#Charmed),\
\ [deafened](Mechanics/CLI/rules/conditions.md#Deafened), [exhaustion](Mechanics/CLI/rules/conditions.md#Exhaustion),\
\ [frightened](Mechanics/CLI/rules/conditions.md#Frightened), [grappled](Mechanics/CLI/rules/conditions.md#Grappled),\
\ [prone](Mechanics/CLI/rules/conditions.md#Prone), [restrained](Mechanics/CLI/rules/conditions.md#Restrained)"
"senses": "blindsight 60 ft., passive Perception 8"
"languages": ""
"cr": "1/2"
"traits":
- "desc": "The ooze can move through a space as narrow as 1 inch without expending\
\ extra movement to do so."
"name": "Amorphous"
- "desc": "Nonmagical ammunition is destroyed immediately after hitting the ooze\
\ and dealing any damage. Any nonmagical weapon takes a cumulative -1 penalty\
\ to attack rolls immediately after dealing damage to the ooze and coming into\
\ contact with it. The weapon is destroyed if the penalty reaches -5. The penalty\
\ can be removed by casting the [Mending](Mechanics/CLI/spells/mending-xphb.md)\
\ spell on the weapon.\n\nThe ooze can eat through 2-inch-thick, nonmagical\
\ metal or wood in 1 round."
"name": "Corrosive Form"
"actions":
- "desc": "Melee Attack Roll: +3, reach 5 ft. Hit: 10 (2d8 + 1) Acid damage.\
\ Nonmagical armor worn by the target takes a -1 penalty to the AC it offers.\
\ The armor is destroyed if the penalty reduces its AC to 10. The penalty can\
\ be removed by casting the [Mending](Mechanics/CLI/spells/mending-xphb.md)\
\ spell on the armor."
"name": "Pseudopod"
"source":
- "XMM"
"image": "Mechanics/CLI/bestiary/ooze/token/gray-ooze-xmm.webp"
```
^statblock
## Environment
underdark