Shikki-Gaki (CR 4)

Medium Undead (Spirit)
Alignment: Always chaotic evil
Initiative: +4 (Improved initiative); Senses: Listen +5 and Spot +5
Languages: usually Common

AC: 16 (+6 natural), touch 10, flat-footed 16
Hit Dice: 5d12 (32 hp); DR: 5/honorable
Fort +1, Ref +1, Will +4
Speed: 30 ft., fly 20 ft. (average)
Space: 5 ft./5 ft.
Base Attack +2; Grapple -3
Attack: 2 claws +3 melee
Full Attack: 2 claws +3 melee
Damage: Claw 1d4+1 plus disease
Special Attacks/Actions: Disease
Abilities: Str 12, Dex 10, Con -, Int 6, Wis 11, Cha 10
Special Qualities: undead, fast healing 3, gaki qualities, mushroom form
Feats: Alertness; Improved Initiative
Skills: Hide +3, Listen +5, Move Silently +4, Search +1, and Spot +5
Advancement: 6-15 HD (Medium-size)
Climate/Terrain: Any land
Organization: Solitary
Treasure/Possessions: None

Source: Oriental Adventures

Disease (Su): Gaki fever-claw, Fort save (DC 20); incubation period 2 hours; damage 1d6 temporary Con. Unlike normal diseases, gaki fever continues until the victim reaches Constitution 0 (and dies) or receives a remove disease spell or similar magic. (See Disease.)

Mushroom Form (Su): Shikki-gaki that are transformed nature spirits spend daylight hours in the form of an oversize (1-foot-tall) mushroom, The mushroom conceals itself in a cave or other dark place where it sleeps all day, snoring loudly, in mushroom form, the shikki-gaki cannot move, attack, or respond in any other way, and it is vulnerable to all attacks that normally affect gaki. Additionally, it can be destroyed in this form by being doused with a dipper of hot soup or salt water.

Spell-Like Abilities: All gaki have the following abilities: at will - invisibility; 3/day - passwall. These abilities are as the spells cast by a sorcerer with as many levels as the gaki has HD (save DC 10 + gaki's Charisma modifier + spell level).

Flight (Su): A gaki can cease or resume flight as a free action.

Alternate Form (Su): All gaki can transform themselves into the form of an insect. Their statistics in this form are as follows: Fine Undead; Init +5; Spd fly as gaki; AC 19 (touch 19, flat-footed 18); Atk -; SV Ref +2; Str 1, Dex 13, Con-.

Like jiki-niku-gaki, shikki-gaki attack mindlessly and with great ferocity, driven by their hunger for humanoid flesh.

Gaki are minor undead spirits, the spirits of wicked mortals who return to the world of the living in the form of horrible monsters as punishment for their sins.

Most shikki-gaki are the corrupted spirits of irresponsible healers or negligent servants. A few were once Small nature spirits that inhabited mushrooms or other fungi sprouting from the trunks of decaying trees. These nature spirits completely succumbed to their evil aspects, developing a taste for bluebirds or butterflies.

A shikki-gaki is a bony humanoid with pitted and decayed skin, the ghoulish facial features of a jiki-niku-gaki, and blunt, rotted teeth.

All gaki speak the languages they knew in life (at least Common). With the exception of the jiki-ketsu-gaki, however, they generally communicate only in grunts and moans.

Spirit Subtype

Spirit creatures include some fey and elementals (nature spirits), outsiders (celestial spirits), undead (ghosts and ancestors), and even dragons. Spirit creatures are nor necessarily incorporeal, despite their name - in the worlds of Oriental Adventures, some spirits are as much flesh and bone as humans are. The only game effect of the spirit type modifier is that spirit creatures are all affected by spells such as commune with greater spirit, invisibility to spirits, and protection from spirits.