Creature Reference Back to Creatures

Black Patch

Large · Ooze · CR 6 · Unaligned

Source. Tome of Beasts 3

153 (18d10+54)

Ability Scores

Core attributes and their modifiers.

STR

DEX

-3

CON

INT

-3

WIS

-2

CHA

-5

Overview

Category Monsters

Size Large

Type Ooze

Alignment Unaligned

XP 2300

Initiative Bonus -3

Movement

Swim 40 ft (12.2 m)

Senses

Blindsight 120 ft (36.6 m)

Passive Perception 8

Skills

Perception -2

Resistances & Immunities

Damage Immunities

acid, poison

Damage Resistances

cold

Condition Immunities

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

Traits

Amphibious

Can breathe air and water.

Eldritch Luminance

When a creature that can see the patch starts its turn within 90' of it patch can force it to make a DC 15 Wis save if ooze isn’t incapacitated and can see the creature. Fail: creature is mesmerized 1 min. Mesmerized creature over 5 ft. away from patch must move on its turn toward ooze by most direct route trying to get within 5 feet. It doesn’t avoid opportunity attacks but before moving into damaging terrain such as lava or a pit and whenever it takes damage from a source other than ooze target can re-save. Mesmerized target can also re-save at end of each of its turns success ends effect on itself. If creature’s save succeeds or effect ends for it is immune to patch's Eldritch Luminance for next 24 hrs.

Flowing Form

Can enter hostile creature’s space and stop there. It can move through a space as narrow as 1ft. wide with o squeezing.

Ooze Nature

Doesn’t require sleep.

About Black Patch

Black Patch is a large ooze with a Challenge Rating of 6. It has a unaligned alignment.

In combat, this creature maintains an Armor Class of 7 and possesses 153 hit points (derived from 18d10+54).

GM Tips: Using Black Patch

1 tips available

When using Black Patch in your D&D 5e campaign, consider these tactical approaches:

Aquatic Combat: This creature can swim at 40 ft. It has advantage in water environments. Consider fighting on land or using water-based spells against it.

Player Guide: Facing Black Patch

1 strategies available

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

Aquatic Combat Defense: This creature can swim at 40 ft! It has advantage in water. Fight on land if possible. Use 'Control Water' or drain water sources to limit its mobility.

Encounter Building Calculator

Standard Party Encounter (4-5 characters):

This creature is a medium encounter for a party of 4 characters of level 6.

Solo Encounter:

A single character of level 9 (up to level 20) can face this creature in a medium to hard encounter.

Experience Point Thresholds:

Medium: 4,200 XP
Hard: 6,300 XP
Deadly: 8,400 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 Black Patch?: Black Patch has a Challenge Rating of 6, making it appropriate for parties of level 6.0.
What type of creature is Black Patch?: Black Patch is a Large Ooze, which affects how certain spells and abilities interact with it.