Lau

An immense creature hauls itself from the water, resembling a cross between an eel and a dragon. A mane of tentacles grows from its head and neck. Stubby, hooked appendages grow along the length of its body.
Taken from Creature Codex
A lau is an immense and aberrant predator native to the most remote marshes and underground lakes. These beasts prefer freshwater, but may occasionally be seen in brackish estuaries or salt marshes. Laus are carnivores with unusually delicate digestion—they can only process meat that is thoroughly decomposed. A lau’s gaze imposes this condition, rotting flesh away in seconds into a foul suppurating mass—a lau that kills a victim without its gaze having an effect will stash the carcass for extended periods of time in order to achieve the same effect. Laus are frequently wasteful hunters—using their gaze to sicken and blight entire herds of livestock or villages of people and only taking a few bodies for food.
As lau have no immunity to their own gaze attack, they are solitary and reclusive creatures that come together only to mate—such events are fraught with challenge, as the two enormous beasts court while averting their gaze. This strange sight has led to rumors that eye contact with anyone or anything will kill or wound a lau. This rumor has led to the deaths of many brave and foolhardy souls.
The origins of laus are unknown, but their magical physiology and weird powers suggest that they are not natural creatures. Some sages hypothesize that they are the creations of daemons, as they spread famine and death wherever they go. The average lau is twenty-five feet long and as thick as a man’s torso, but rumors of laus twice as long and as thick as a house are not unheard of.
Lau CR 14
XP 38,400
NE Huge aberration (aquatic)
Init +7; Senses blindsense 60 ft., darkvision 60 ft., Perception +23, scent
Defense
AC 28, touch 13, flat-footed 23 (-2 size, +5 Dex, +15 natural)
hp 195 (17d8+119), fast healing 5
Fort +15, Ref +12, Will +13
Immune curses, disease, poison; Resist electricity 20
Offense
Speed 30 ft., swim 80 ft., burrow 20 ft.
Melee bite +21 (4d6+11 plus dispelling and grab/19-20×2) and 4 tentacles +19 (1d6+5 plus 2d6 electricity plus stagger)
Space 15 ft.; Reach 15 ft.
Special Attacks constrict (2d6+16), rake (4 claws +21, 1d8+11), rotting gaze
Statistics
Str 33, Dex 21, Con 25, Int 8, Wis16, Cha 20
Base Atk +12; CMB +25 (+29 grapple); CMD 45 (51 vs. trip)
Feats Blind-fight, Combat Reflexes, Defensive Combat Training, Great Fortitude, Improved Critical (bite), Improved Initiative, Lightning Reflexes, Multiattack, Power Attack
Skills Intimidate +15, Perception +23, Stealth +17, Survival +16, Swim +19
Languages Aquan
SQ amphibious
Ecology
Environment warm and temperate marshes and underground
Organization solitary or pair
Treasure standard
Special Abilities
Dispelling Bite (Su) On a successful bite attack, a lau can attempt to dispel magical effects on its target, acting as a greater dispel magic spell (CL 17th).
Rotting Gaze (Su) 1d6 Con drain, 30 ft., Fortitude DC 23 negates. The save DC is Charisma based.
Stagger (Ex) A creature that takes electricity damage from a lau’s tentacles must succeed a DC 25 Fortitude save or be staggered for 1d3 rounds. Multiple hits extend the duration. The save DC is Constitution based.