Creature Reference Back to Creatures

Blood Ooze

Large · Ooze · CR 6 · Unaligned

Source. Creature Codex

76 (8d10+32)

Ability Scores

Core attributes and their modifiers.

STR

DEX

-2

CON

INT

-5

WIS

-1

CHA

-4

Overview

Category Monsters

Size Large

Type Ooze

Alignment Unaligned

XP 2300

Initiative Bonus -2

Movement

Walk 20 ft (6.1 m)

Swim 10 ft (3 m)

Climb 20 ft (6.1 m)

Crawl 10 ft (3 m)

Senses

Blindsight 60 ft (18.3 m)

Passive Perception 9

Languages

Resistances & Immunities

Damage Immunities

acid, fire, necrotic, slashing

Condition Immunities

blinded, charmed, deafened, exhaustion, frightened, prone

Traits

Amorphous

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

Blood Drain

A creature that touches the ooze or hits it with a melee attack while within 5 feet of it takes 5 (1d10) necrotic damage and the ooze gains temporary hp equal to that amount as it drains blood from the victim. It can add temporary hp gained from this trait to temporary hp gained from its pseudopod attack and Overflow reaction. Its temporary hp can't exceed half its maximum hp. If the ooze takes radiant damage, this trait doesn't function at the start of the ooze's next turn, although it retains any temporary hp it previously gained.

Spider Climb

The ooze can climb difficult surfaces, including upside down on ceilings, without needing to make an ability check.

Actions

Pseudopod

+5 to hit, reach 5 ft (1.5 m). Hit: 1d6+3 plus 3d10 necrotic damage.

Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 6 (1d6 + 3) bludgeoning damage plus 16 (3d10) necrotic damage. The ooze gains temporary hp equal to the necrotic damage taken.

Reactions

Overflow

When the blood ooze is hit with a melee attack, it can drain blood from the attacker. The attacker must make a DC 15 Constitution saving throw, taking 11 (2d10) necrotic damage on a failed save, or half as much damage on a successful one. The ooze gains temporary hp equal to the necrotic damage taken.

About Blood Ooze

Blood Ooze is a large ooze with a Challenge Rating of 6. It has a unaligned alignment.

In combat, this creature maintains an Armor Class of 8 and possesses 76 hit points (derived from 8d10+32).

Blood Ooze has communication capabilities including -. This allows it to interact verbally with various creatures and characters.

GM Tips: Using Blood Ooze

2 tips available

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

Climbing Advantage: This creature can climb at 20 ft. It can use walls and ceilings for tactical positioning. Consider using 'Spider Climb' negation or fighting in open areas without vertical surfaces.
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 Blood Ooze

2 strategies available

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

Climbing Defense: This creature can climb at 20 ft! It can use walls and ceilings for surprise attacks. Fight in open areas without vertical surfaces. 'Spider Climb' negation spells can help.
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 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 Blood Ooze?: Blood Ooze has a Challenge Rating of 6, making it appropriate for parties of level 6.0.
What type of creature is Blood Ooze?: Blood Ooze is a Large Ooze, which affects how certain spells and abilities interact with it.
What languages does Blood Ooze speak?: Blood Ooze can communicate in -.