Gelatinous Cube (Ebony)

A vast cube of inky slime jiggles before you.

Ebony Gelatinous Cube CR 5

XP 1600
N Large ooze
Init –5; Senses blindsight 60 ft.; Perception –5


AC 4, touch 4, flat-footed 4 (–5 Dex, –1 size)
hp 50 (4d8+32)
Fort +9, Ref –4, Will –4
Immune electricity, ooze traits


Speed 15 ft.
Melee slam +2 (1d6 plus 1d6 acid)
Space 10 ft.; Reach 5 ft.
Special Attacks engulf, paralysis


Str 10, Dex 1, Con 26, Int —, Wis 1, Cha 1
Base Atk +3; CMB +4; CMD 9 (can’t be tripped)


Acid (Ex)

An ebony cubes acid is more powerful than a common gelatinous cubes, able to dissolve even metal. Any melee hit or engulf attack deals 1d6 acid damage and the opponent’s armor and clothing dissolve and become useless immediately unless he succeeds on a DC 20 Reflex save. A metal or wooden weapon that strikes an ebony cube also dissolves immediately unless it succeeds on a DC 20 Reflex save. The cube’s acidic touch deals 20 points of damage per round to wooden or metal objects, but the ooze must remain in contact with the object for 1 full round to deal this damage.

Engulf (Ex)

Although it moves slowly, a gelatinous cube can simply engulf Large or smaller creatures in its path as a standard action. It cannot make a slam attack during a round in which it engulfs. The gelatinous cube merely has to move over the opponents, affecting as many as it can cover. Opponents can make attacks of opportunity against the cube, but if they do so they are not entitled to a saving throw. Those who do not attempt attacks of opportunity can attempt a DC 12 Reflex save to avoid being engulfed—on a success, they are pushed back or aside (opponent’s choice) as the cube moves forward. Engulfed creatures are subject to the cube’s paralysis and acid, gain the pinned condition, are in danger of suffocating, and are trapped within its body until they are no longer pinned. The save DC is Strength-based.

Paralysis (Ex)

A gelatinous cube secretes an anesthetizing slime. A target hit by a cube’s melee or engulf attack must succeed on a DC 20 Fortitude save or be paralyzed for 3d6 rounds. The cube can automatically engulf a paralyzed opponent. The save DC is Constitution-based.


Environment any underground
Organization solitary
Treasure incidental

As a product of magical experimentation, the gelatinous cube exists in several different varieties. This form is a gelatinous cube that has been crossed with a deadly black pudding. Vast cubes of inky slime, they lose their transparent ability, but their acid is more powerful, able to dissolve even metal.

Section 15: Copyright Notice

Dungeon Denizens Revisited. Copyright 2009, Paizo Publishing, LLC Authors Clinton Boomer, Jason Bulmahn, Joshua J. Frost, Nicolas Logue, Robert McCreary, Jason Nelson, Richard Pett, Sean K Reynolds, James L. Sutter, and Greg A. Vaughan.

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