CRYSTAL OOZE

Medium-Size Ooze (Aquatic)

Hit Dice: 4d10+10 (32 hp)

Initiative: -5 (Dex)

Speed: 5 ft, swim 10 ft

AC: 5 (-5 Dex)

Attacks: Slam +4 melee

Damage: Slam 2d4 and 1d6 acid

Face/Reach: 5 ft by 5 ft/5 ft

Special Attacks: Acid, constrict

Special Qualities: Blindsight, weapon resistance, transparent, ooze

Saves: Fort +1, Ref -4, Will -4

Climate/Terrain: Any aquatic

Organization: Solitary or pair

Challenge Rating: 4

Treasure: None

Alignment: Always neutral

Advancement: 5-8 HD (Medium-Size); 9-12 HD (Large)

The crystal ooze is an aquatic variety of gray ooze. It is translucent and clear like glass, and nearly invisible in the water. They live in dimly lit bodies of water, but can live survive on land for several hours.

COMBAT

A crystal ooze attacks with sudden speed, flailing with its pseudopod to attempt to paralyze its victims.  The ooze flows over paralyzed victims to envelop and devour them. 

      Acid (Ex): The crystal ooze secretes a digestive acid that quickly dissolves organic material (wood, cloth, and flesh). A crystal ooze’s acid does not harm metal. Any melee hit deals acid damage.

      The ooze’s acid touch deals 40 points of damage per round to wood, cloth, or flesh. Clothing dissolves and becomes useless immediately unless it succeeds at a Reflex save (DC 19). The acid cannot harm stone or metal. A wooden weapon that strikes a crystal ooze deals no damage and dissolves immediately unless it succeeds at a Reflex save (DC 19).

      Constrict (Ex): A crystal ooze deals automatic slam damage and acid damage with a successful grapple check. The opponent’s clothing suffers a –4 penalty to Reflex saves against the acid.

      Transparent (Ex): When submerged a crystal ooze is nearly undetectable (Spot check at DC 20).

      Immunities (Ex): Crystal oozes are immune to acid, cold, and fire.

      Ooze: Immune to mind-influencing effects, poison, sleep, paralysis, stunning, and polymorphing.  Not subject to critical hits.

The crystal ooze first appeared in the MM II (Gary Gygax, 1983).