Jahi (CR 16)

Tiny Undead (Incorporeal)
Alignment: Usually lawful evil
Initiative: +4 (Improved Initiative); Senses: Listen +22 and Spot +22


AC: 16 (+2 size, +4 deflection), touch 16, flat-footed 16
Hit Dice: 25d12 (162 hp)
Fort +8, Ref +10, Will +18
Speed: Fly 60 ft. (perfect)
Space: 2 1/2 ft./0 ft.
Base Attack +1; Grapple -
Attack: Incorporeal touch +14 melee
Full Attack: Incorporeal touch +14 melee
Damage: Incorporeal touch 1d3 plus 1d4 Charisma damage
Special Attacks: Charisma damage, Charisma drain, dominate person
Abilities: Str -, Dex 11, Con -, Int 15, Wis 15, Cha 18
Special Qualities: Incorporeal subtype, invest Charisma, SR 27, undead traits
Feats: Ability Focus (dominate person); Alertness; Blind-fight; Combat Expertise; Flyby Attack; Improved Initiative; Iron Will; Lightning Reflexes; Quicken Spell-Like Ability
Skills: Balance +2, Bluff +19, Diplomacy +25, Escape Artist +23, Hide +26, Intimidate +6, Jump +2, Listen +22, Search +20, Sense Motive +20, Spot +22, and Tumble +23
Advancement: 26-50 HD (Tiny)
Climate/Terrain: Any land and underground
Organization: Solitary or harim (1 plus 1 14th-level chosen one and 4-20 7th-level followers)
Treasure/Possessions: Double standard

Source: Monster Manual II

The jahi is an incorporeal undead made of unfulfilled desires. It attacks by magically dominating its prey. The jahi appears as a ghostly image of a serpentine, scaled worm with three elongated faces. Normally, it is found wrapped around the throat or chest of a creature it bas selected to be its 'chosen one.'

A jahi prefers to work behind the mask of its chosen one, letting the blame for any excesses fall upon the latter. Once it has a chosen one, the monster begins to accumulate a group of dominated followers, who form the nucleus of a debauched cult dedicated to the jahi's worship. The creature feeds of the Charisma of these followers, all the while encouraging them to greater heights of hedonistic excess.

Combat

Jahis are sometimes countered alone, but more often they have numerous enslaved individuals nearby. If encountered alone, monster selects the individual with the most pleasing appearance as its chosen one. If it can successfully dominate that opponent, it drains his or her Charisma and replaces it its own.

Charisma Damage (Su): Any creature hit by a incorporeal touch attack takes 1d4 points of Charisma damage (or twice amount on a critical hit). The jahi heals 5 points of damage (or 10 on a critical whenever it deals Charisma damage.

Charisma Drain (Su): Each day, a jahi's chosen one (if any) must make a Fortitude save (DC 26) or permanently lose 1d3 points of Charisma. The jahi heals 5 point damage whenever it drains Charisma, gaining any excess as temporary hit points.

Dominate Person (Sp): Up to four times per day, a jahi can use dominate person (caster level 20th; save DC 20).

Incorporeal Subtype: A jahi can be harmed only by other incorporeal creatures, +1 or better magic weapons, spells, spell-like abilities, and supernatural abilities. The creature has a 50% chance to ignore any damage from a corporeal source, except for force effects or attacks made with ghost touch weapons. A jahi can pass through solid object but not force effects, at will. Its attacks ignore natural armor, armor, and shields, but deflection bonuses and force effects work normally against them. A jahi always moves silently and cannot be heard with Listen checks if it doesn't wish to be.

Invest Charisma (Ex): After draining all the Charisma from its chosen one, a jahi can automatically adhere to that creature (usually by wrapping around its throat or chest) and replace the lost Charisma with its own. While so invested, the creature uses the jahi's Charisma for all Charisma-based checks. This investment lasts as long as the jahi and the chosen one are in physical contact. If seriously threatened, or if it decides to select another chosen one, the jahi detaches, removing the investment of its Charisma. At that point, the chosen one's Charisma score falls to 0 and he or she becomes unconscious until at least 1 point of Charisma has been regained.

Undead Traits: A jahi is immune to mind-affecting effects, poison, sleep, paralysis, stunning, disease, death effects, necromantic effects, and any effect that requires a Fortitude save unless it also works on objects. It is not subject to critical hits, subdual damage, ability damage, ability drain, energy drain, or death from massive damage. A jahi cannot be raised, and resurrection works only if it is willing. The creature has darkvision (60-foot range).