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From Pathfinder #182: Graveclaw, which isn't enabled.

Aquatic Ooze

CREATURE 4

Variant gray ooze

These dangerous oozes are the bane of any who travel through swamps, marshes, or damp caves. Easily masquerading as pools of clear water or patches of wet stone, gray oozes lie in wait for unwary victims to reach down for a drink or step into what appears to be a puddle, then lash out with whiplike pseudopods to ensnare and consume their hapless prey.


Perception +8; motion sense 60 feet
Skills Athletics +11, Stealth +10 (+12 in moist environments)
Str +5, Dex +2, Con +4, Int -5, Wis +0, Cha -5
Motion Sense

A gray ooze can sense nearby creatures through vibration and air or water movement.

Puddled Ambush
Trigger A creature enters a space occupied by a gray ooze
Requirements Initiative has not yet been rolled

Effect The gray ooze automatically notices the creature, then makes a pseudopod Strike against one creature adjacent to itself before rolling initiative.

AC 14; Fort +12, Ref +10, Will +8
HP 60; Immunities acid, critical hits, precision, unconscious, visual; Resistances slashing 5, piercing 5

Speed 10 feet, climb 10 feet, swim 10 feet
Melee Pseudopod +13 (agile, unarmed), Damage 1d6+5 bludgeoning plus 1d6 acid plus Grab plus Paralysis
Constrict

1d6 bludgeoning plus 1d6 acid, DC 21 basic Fortitude


The monster deals the listed amount of damage to any number of creatures Grabbed or Restrained by it. Each of those creatures can attempt a basic Fortitude save with the listed DC.

Gray Ooze Acid

A gray ooze's acid damages only metal and organic materials, not stone.

Paralysis (incapacitation)

A creature hit by the ooze's pseudopod is Paralyzed unless it succeeds at a DC 19 Fortitude save. A victim can attempt a new save to recover at the end of each of its turns.

Grab

Requirements The monster's last action was a successful Strike that lists Grab in its damage entry, or the monster has a creature Grabbed or Restrained

Effect If used after a Strike, the monster attempts to Grapple the creature using the body part it attacked with. This attempt neither applies nor counts toward the creature's multiple attack penalty.

The monster can instead use Grab and choose one creature it's grabbing or restraining with an appendage that has Grab to automatically extend that condition to the end of the monster's next turn.

Pathfinder #182: GraveclawOGL