Ooze, Crystal (3pp)

This creature looks like a quivering puddle of water.

Crystal Ooze CR 4

XP 1,200
N Medium ooze (aquatic)
Init -5; Senses blindsight 60 ft.; Perception -5


AC 5, touch 5, flat-footed 5 (-5 Dex)
hp 65 (5d8+40)
Fort +9, Ref -4, Will -4
Defensive Abilities transparency; Immune cold, fire, ooze traits
Weaknesses water dependent


Speed 10 ft., swim 30 ft.
Melee slam +6 (1d6+4 plus 1d6 acid plus grab plus paralysis)
Special Attacks constrict (1d6+4) 1d6+4, paralysis (3d6 rounds, DC 18)


A crystal ooze strikes by slamming into its opponents. Paralyzed victims are devoured.


Str 16, Dex 1, Con 26, Int –, Wis 1, Cha 1
Base Atk +3; CMB +6 (+10 to grapple) ; CMD 11 (can’t be tripped)
Skills Swim +11
SQ transparent


Acid (Ex)

The digestive acid that covers a crystal ooze dissolves metals and organic material, but not stone. Each slam and constrict attack deals 1d6 additional acid damage. Armor or clothing worn by a creature grappled by a crystal ooze takes the same amount of acid damage unless the wearer succeeds on a DC 20 Reflex saving throw. A wooden or metal weapon that strikes a crystal ooze takes 1d6 acid damage unless the weapon’s wielder succeeds on a DC 20 Reflex save. The ooze’s touch deals 12 points of acid damage per round to wooden or metal objects, but the ooze must remain in contact with the material for 1 full round in order to deal this damage. The save DCs are Constitution-based.

Transparency (Ex)

Due to its lack of vivid coloration, a crystal ooze is difficult to discern from its surroundings in most environments. A DC 15 Perception check is required to notice the ooze. Any creature that fails to notice a crystal ooze and walks into it automatically suffers damage as if struck by the ooze’s slam attack and is immediately subject to a grab attempt by the ooze.

Water Dependency (Ex)

Crystal oozes can survive out of the water for 1 hour per 4 points of Constitution and then begin to drown.


Environment any aquatic
Organization solitary
Treasure none

The crystal ooze is an aquatic variety of the gray ooze. It is semitransparent and clear and almost impossible to see in the water. The crystal ooze can grow to a length of up to 8 feet and a thickness of about 6 inches.

Section 15: Copyright Notice

Crystal Ooze from the Tome of Horrors Complete, Copyright 2011, Necromancer Games, Inc., published and distributed by Frog God Games; Author Scott Greene, based on original material by Gary Gygax.

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