Nure-onna

From the waist up, this creature resembles a human woman, albeit one of immense size and with a sinister, reptilian cast to her features. From the waist down, her body is merely an enormous serpent, thrashing with anticipation. Her skin is slick and smooth like that of an amphibian, and her soaking wet hair is plastered against her neck and shoulders.

Nure-onna are among the most powerful of the predatory monsters that mimic human shape. Despite their incredible physical power and size, they prefer to use trickery and guile to torment and murder their victims. A nure-onna’s schemes are typically limited in scope to spreading misery and death, but they can become quite elaborate in the monster’s attempts to ruin entire villages. Nure-onna are most often found within a day’s travel of water, and they maintain their lairs in sea caves and underwater grottos. Due to their shared dietary habits and habitats, nure-onna often ally with ushi-oni, draining the blood of victims and giving the monstrous beast the bones and flesh. Such-monsters often fall into the nure-onna’s schemes, acting as a pawn in anything as simple as a quick ‘damsel in distress’ ploy tobe the patsy for their reigns of terror. A nure-onna stretches up to 100 feet long, but more than 80 feet of that length is tail.

Source Demiurge113
Originally Probing the Membrane of Science

Nure-onna CR 18

XP 153,600 NE Huge monstrous humanoid (aquatic) Init +7; Senses blindsense 60 ft., darkvision 60 ft, Perception +27, scent

Defense

AC 32, touch 13, flat-footed 28 (-2 size, +3 Dexterity, +1 dodge, +20 natural) hp 319 (22d10+198) Fort +16, Ref +16, Will +17 DR 15/cold iron; Immune acid, cold, poison; SR 29

Offense

Speed 40 ft., swim 80 ft. Melee bite +28 (3d6+9 plus bleed), 2 claws +28 (2d6+9/19-20), tail slap +23 (3d10+13 plus grab) Space/Reach 15 ft. /15 ft. (30 ft. with tail slap) Special Attacks bleed (2d6 plus 2 Constitution), burden, constrict (3d10+13), powerful blows (tail slap), rend (2d6+13 plus spell-rend)

Statistics

Strength 28, Dexterity 17, Constitution 28, Int17, Wisdom 15, Charisma 18 Base Atk +22; CMB +32 (+36 grapple); CMD 46 (cannot be tripped) Feats Blind Fight, Combat Expertise, Combat Reflexes, Dodge, Improved Critical (claw), Improved Initiative, Iron Will, Mobility, Spring Attack, Stand Still, Whirlwind Attack Skills Bluff +26, Climb +36, Disguise +26 (+36 when using change shape), Intimidate +29, Perception +27, Sense Motive +24, Stealth +20, Swim +16 SQ amphibious, change shape (animal or humanoid, polymorph), endless coils, quick change

Ecology

Environment temperate coastlines Organization solitary Treasure standard

Special Abilities

Burden (Su) All nure-onna can transform a simple stone or bundle of leaves into a cursed object as a standard action once per day. This object is covered with an illusion of the nure-onna’s choice, which can be disbelieved with a successful DC 25 Will save. Any creature other than a nure-onna that holds or carries a nure-onna’s burden is treated as if he is carrying a heavy load for the purposes of movement, maximum Dexterity bonus and armor check penalty, and must succeed a DC 25 Fortitude save every round or be unable to take any actions that round. A creature carrying a nure-onna’s burden cannot get rid of the burden; only a remove curse or break enchantment spell against 22nd caster level or a miracle or wish can remove the burden. This is a curse effect. The save DC is Charisma based.   Endless Coils (Ex) A nure-onna does not take penalties for grappling using only her tail. In addition, a nure-onna can maintain a grapple of up to 9 creatures as a swift action.   Quick Change (Su) A nure-onna can change shape as a swift action.   Spell-rend (Su) If a nure-onna hits an opponent with both claw attacks, not only does it deal additional damage, but it also targets the opponent with a greater dispel magic (CL 22nd).