Planar Bestiary
A flayer of teeth is a hulk of fangs, iron hooks, horns, tooth-spiked chains, and claws. Eyeless and mouthless, this creature birthed in the roiling chaos of Limbo acts as randomly and capriciously as their malleable, heaving form seems to promise.
All flayers descend from a fiend that succumbed to a spell of utter destruction in Limbo. But through hellish will alone, the creature retained a thread of existence by imprinting their mind on revenge. What survived is an inchoate accretion of iron, horn, and tooth. A flayer of teeth either rolls along or extends chains to pull themself across great distances quickly.
Sensing their surroundings by contact, a flayer of teeth heaves themself toward movement with a horrendous jangle of chains, clattering teeth, and scraping claws. They don't want a victim's flesh; rather, they want their teeth, their nails or claws, and any sharp bits of iron or metal, all of which the flayer incorporates into their own form.
An aura of Limbo clings to each flayer of teeth, so that objects near one have a mutable, dangerous aspect. A nearby boulder may become a ball of exploding fire, or the floor a pool of acid, or the ceiling a crop of falling icicles. Usually, flayers of teeth can't directly change objects worn by intelligent creatures or the creatures themselves—at least until they're dead, at which point the flayer uses this ability to harvest the victims for the material they crave.
Extracting a victim's teeth and nails is as deadly as if the flayer ate directly of their flesh.
Motive: Hungers for teeth, nails, claws, iron shrapnel, and hooks
Environment: Lightless places across the multiverse, usually alone
Health: 23
Damage Inflicted: Moderate wound (5 points)
Armor: 1
Movement: Short; short when climbing
Modifications: Perception as level 7
Combat: A flayer can attack twice each round with their toothed chains against targets within immediate range. If a target takes damage, they are also grabbed until they can escape. All the grabbed target's tasks are hindered, and they automatically take 5 points of damage reach round.
The flayer can release the influence of Limbo about once each hour. When they do, chaos rolls away from the creature in all directions, leaving behind a ripple of change in an area a short distance in diameter. Creatures in the area take 6 points of damage from acid, cold, fire, or electricity (randomly determined) on a failed Speed defense task, or 2 points of damage even if successful. In the aftermath, the area is chaotically rearranged, becoming difficult terrain. In addition, each creature other than the flayer of teeth that acts in the area must succeed at a difficulty 3 Might defense task or be unable to move until their next turn.
Once per day the flayer can abrade the floor or wall, creating a portal to a random planar location, or to Limbo, and pass through. The portal stays open for about two rounds, then slams shut, leaving a ragged scar in whatever surface it was scratched into.
A flayer of teeth is immune to fire and poison attacks.
Interaction: The flayer doesn't understand or speak any languages. They are a clever predator, and retreat if they are outmatched.
Use: A nearby forest is pocked with altered areas of the landscape that look half-melted, stretched, and blended as if reality itself had come unglued there.
GM Intrusion: Each round a character remains grabbed, one of their teeth falls out.