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Gray Ooze

Medium · Ooze · CR 1/2 · Chaotic Evil

Source. Monstrous Menagerie

22 (3d8+9)

1/2

Ability Scores

Core attributes and their modifiers.

STR

DEX

-2

CON

INT

-5

WIS

-2

CHA

-5

Overview

Category Monsters

Size Medium

Type Ooze

Alignment Chaotic Evil

XP 100

Initiative Bonus -2

Movement

Walk 15 ft (4.6 m)

Swim 15 ft (4.6 m)

Climb 15 ft (4.6 m)

Crawl 7 ft (2.1 m)

Senses

Blindsight 60 ft (18.3 m)

Passive Perception 8

Resistances & Immunities

Damage Resistances

acid, cold, fire

Condition Immunities

blinded, charmed, deafened, fatigue, frightened, prone

Traits

Amorphous

The ooze can pass through an opening as narrow as 1 inch wide without squeezing.

Corrosive Body

A creature or a metal object that touches the ooze takes 5 (2d4) acid damage. A nonmagical weapon made of metal that hits the black pudding corrodes after dealing damage, taking a permanent -1 penalty to damage rolls per hit. If this penalty reaches -5, the weapon is destroyed. Metal nonmagical ammunition is destroyed after dealing damage.

False Appearance

While motionless, the ooze is indistinguishable from wet stone.

Ooze Nature

An ooze doesnt require air or sleep.

Sunlight Sensitivity

While in sunlight, the ooze has disadvantage on attack rolls.

Actions

Pseudopod

+3 to hit, reach 5 ft (1.5 m). Hit: 1d4+1 plus 2d4 acid damage.

Melee Weapon Attack: +3 to hit, reach 5 ft., one target. Hit: 3 (1d4 + 1) bludgeoning damage plus 5 (2d4) acid damage. Nonmagical metal armor worn by the target corrodes taking a permanent -1 penalty to its AC protection per hit. If the penalty reduces the armors AC protection to 10 the armor is destroyed.

About Gray Ooze

Gray Ooze is a medium ooze with a Challenge Rating of 1/2. It has a chaotic evil alignment.

In combat, this creature maintains an Armor Class of 8 and possesses 22 hit points (derived from 3d8+9).

GM Tips: Using Gray Ooze

3 tips available

When using Gray Ooze in your D&D 5e campaign, consider these tactical approaches:

Climbing Advantage: This creature can climb at 15 ft. It can use walls and ceilings for tactical positioning. Consider using 'Spider Climb' negation or fighting in open areas without vertical surfaces.
Aquatic Combat: This creature can swim at 15 ft. It has advantage in water environments. Consider fighting on land or using water-based spells against it.
Amorphous Movement: This creature can squeeze through spaces as small as 1 inch! Traditional barriers are ineffective. Use 'Wall of Force', 'Forcecage', or magical barriers to contain it.

Player Guide: Facing Gray Ooze

3 strategies available

When your party encounters this creature, keep these strategies in mind:

Climbing Defense: This creature can climb at 15 ft! It can use walls and ceilings for surprise attacks. Fight in open areas without vertical surfaces. 'Spider Climb' negation spells can help.
Aquatic Combat Defense: This creature can swim at 15 ft! It has advantage in water. Fight on land if possible. Use 'Control Water' or drain water sources to limit its mobility.
Contain Amorphous Creature: This creature can squeeze through tiny spaces! Traditional barriers won't work. Use 'Wall of Force', 'Forcecage', or magical barriers. 'Create Bonfire' can block movement.

Encounter Building Calculator

Standard Party Encounter (4-5 characters):

This creature is a medium encounter for a party of 4 characters of level 1.

Solo Encounter:

A single character of level 2 (up to level 20) can face this creature in a medium to hard encounter.

Experience Point Thresholds:

Medium: 75 XP
Hard: 112 XP
Deadly: 150 XP

Based on D&D 5e Dungeon Master's Guide encounter building guidelines. CR roughly equals party level for medium encounters.

Frequently Asked Questions

What is the challenge rating of Gray Ooze?: Gray Ooze has a Challenge Rating of 1/2, making it appropriate for parties of level 0.5.
What type of creature is Gray Ooze?: Gray Ooze is a Medium Ooze, which affects how certain spells and abilities interact with it.