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Corrupting Ooze

Large · Ooze · CR 5 · Neutral Evil

Source. Tome of Beasts 1 (2023 Edition)

12 (natural armor)

115 (10d10 + 60)

Ability Scores

Core attributes and their modifiers.

STR

DEX

CON

INT

-3

WIS

-4

CHA

-5

Overview

Category Monsters

Size Large

Type Ooze

Alignment Neutral Evil

XP 1800

Initiative Bonus +0

Movement

Walk 30 ft (9.1 m)

Swim 15 ft (4.6 m)

Climb 15 ft (4.6 m)

Crawl 15 ft (4.6 m)

Senses

Blindsight 60 ft (18.3 m)

Passive Perception 6

Skills

Stealth +3

Resistances & Immunities

Damage Immunities

poison

Damage Resistances

bludgeoning, slashing

Condition Immunities

blinded, charmed, deafened, exhaustion, frightened, prone poisoned

Traits

Ooze Nature

The ooze doesn’t require sleep.

Putrid Stench

A creature that starts its turn within 5 feet of the corrupting ooze must succeed on a DC 14 Constitution saving throw or take 3 (1d6) poison damage and be poisoned until the start of its next turn.

Actions

Multiattack

The corrupting ooze makes two Slam attacks. If both attacks hit one creature, the target must succeed on a DC 14 Dexterity saving throw or one nonmagical leather, metal, or wooden item the creature is wearing or carrying is destroyed. This effect can't destroy armor or weapons.

Slam

+6 to hit, reach 5 ft (1.5 m). Hit: 2d8+3 plus 2d6 poison damage.

Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 12 (2d8 + 3) bludgeoning damage plus 7 (2d6) poison damage.

Bonus Actions

Reshape Body

The corrupting ooze can reshape its mass into a vaguely Humanoid shape or back into its amorphous shape. It reverts to its amorphous shape if it dies. While in a Humanoid shape, it can take any action that requires hands, except it can't wield weapons or a shield or don armor.

About Corrupting Ooze

Corrupting Ooze is a large ooze with a Challenge Rating of 5. It has a neutral evil alignment.

In combat, this creature maintains an Armor Class of 12 and possesses 115 hit points (derived from 10d10 + 60).

GM Tips: Using Corrupting Ooze

2 tips available

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

Significant Threat: Challenging for parties of levels 5-10
Epic Potential: Consider legendary actions for memorable battles

Player Guide: Facing Corrupting Ooze

2 strategies available

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

Significant Threat: Prepare spells and resources
Team Coordination: Coordinate attacks and defenses

Encounter Building Calculator

Standard Party Encounter (4-5 characters):

This creature is a medium encounter for a party of 4 characters of level 5.

Solo Encounter:

A single character of level 7 (up to level 20) can face this creature in a medium to hard encounter.

Experience Point Thresholds:

Medium: 3,000 XP
Hard: 4,500 XP
Deadly: 6,000 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 Corrupting Ooze?: Corrupting Ooze has a Challenge Rating of 5, making it appropriate for parties of level 5.0.
What type of creature is Corrupting Ooze?: Corrupting Ooze is a Large Ooze, which affects how certain spells and abilities interact with it.