Ghosts of Albion: Shaniezak demon

Been going through a lot of my Ghosts of Albion materials.  Seeing if I would like to run anything for Gen Con.  One adventure I have ran in the past and would love to try under different systems is "Obsession".
I could run it under a different system each night...

Well I am not likely to run it under Ghosts of Albion anymore and it would not really work under the OSR rules.  Since I running to a meeting here in a bit, here is a demon for you that would work for any game.

I am not embarrassed to say that this was one my influences on this adventure and demon.  I thought Astrid Plane was hot.

Shaniezak Demon

“This creature at first reminds you of a fetal human.  Its wrinkled pinched face, bald head and fat features bring to mind a cherub, only this no angelic child.  Its eyes are a black with orange irises, set in a head that seems too heavy for its unseen neck.  Two fat arms extend for it like normal, but its own obesity has made the thick digits of its hand all but useless.  Its skin around its upper body is a sickly yellowish hue, like it had been soaking in bromide wash, tuning dun brown as moves down.  Its entire body is covered in a sheen of foul looking slime.  Where its legs would have been has fused into a single thick fluke that noisily slaps against its host.  Tufts of black hair appear hear and there on its body. Most disturbing though is its maw.  Starting from it’s sternum down to its malformed waist is a gapping maw. Slime issues forth from it as it suckles against the body of its host.  Its head has turned nearly 180 degrees around in order to peer at you though it’s damned hellfire orange eyes.

The entire creature brings to mind the working of an insane artist asked to make a portrait of a child.  Instead of a mother and babe we get this abomination and its host that is no more than a bag of skin over bones.  It starves while the Shaniezak gets fat.”

- From the Journal of Tamara Swift

Long ago the Shaiezak demons were banished to lowest parts of the Nether Realms where they fed on the waste and offal of other demons. There they were to be forgotten, but sometimes these disgusting parasites are summoned to the Earthly realms to cause havoc.

Shaniezak (demon enhanced human)
Ghosts of Albion
Type: Possessed human
Attributes (numbers in parentheses are original values): Strength 7 (3), Dexterity 3, Constitution 7 (2), Intelligence 2, Perception 3, Willpower 7 (2)
Ability Scores: Muscle 20, Combat , Brains 12 (9)
Life Points: 69 (30)
Drama Points: 2
Special Abilities:  Emotional Problems (Cruel), Emotional Problems (Obsessed with someone), Hard to Kill, Increased Life Points, Magic Immunity, Unattractive (1)

Shaniezak (demon enhanced human)
Basic OSR
Armor Class:  5 [14] (aura of protection)
Hit Dice: 6d8+12* (39 hp)
No. of Attacks: 2 fists
Damage: 1d4+2 (x2)
Special: Makes saves vs. Magical attacks as Wizard 10
Movement: Twice base creature
No. Appearing: 1
Saves As: Wizard 6 (10 vs. magic and spells)
Morale: 12
Treasure: Special: The Shaniezak possessed human will collect trinkets from their victims or the focus of their obsessions.
Alignment: Chaotic Evil
XP: 450

The Shaniezak appears at a demonic parasite attached to a host body.  It gives the host certain powers, strength, increased health and magic immunity but feeds the darker emotions of the host; fear, envy, hate and obsessions.  The demon prompts its host into greater acts of violence and depravity to feed off of fear of the victims and the frustrations of its host.

An Exorcism spell will remove the demon, but kill the host in the process.  Since the removal of the demon always kills the host many opt just kill both.