Wa-Nyudo – Flaming Wheel Kyton and Soul Collector
Wa-Nyudo – Flaming Wheel Kyton and Soul Collector
A blazing wheel of iron, wood, and bone races from the darkness, an enormous fanged head impaled at its hub.
The Wa-Nyudo is a fanatical kyton retrieval agent built for pursuit, abduction, and the transport of stolen souls. It has discarded almost its entire former body, preserving only an enlarged, hateful head within a wheel-shaped chassis of scorched timber, shadow-forged iron, bone, chains, and hooked spokes.
Overview
A Wa-Nyudo rarely enters the mortal world without a specific quarry. Its kyton masters provide a name, description, possession, blood sample, written commission, or sealed contract identifying the person it must collect. Once the creature reaches the Material Plane, however, its assignment becomes an excuse for wider cruelty.
Witnesses are pursued, terrified, burned, and bitten merely because they looked upon it. A Wa-Nyudo particularly resents mortals who stare at its mutilated form. It interprets curiosity as an invitation to demonstrate the supposed perfection of its transformation.
Unlike a mindless rolling horror, a Wa-Nyudo is intelligent, articulate, and disciplined. It understands contracts, seals, ransom, surrender, recognised authority, and the wording of supernatural obligations. It interprets every agreement in the way most likely to prolong suffering.
Appearance
An adult Wa-Nyudo stands between eight and ten feet high when balanced upright. Its wheel is broad enough to crush a horse beneath its rim and is constructed from scorched wood, black iron, human and animal bones, sinew lashings, chains, hooks, and ritual nails.
The creature’s enormous head fills the central hub. Bulging eyes roll independently as it searches for prey, while its distended mouth chatters with several rows of broken, needle-like teeth. The head can turn within the wheel without rotating the chassis, allowing the Wa-Nyudo to stare behind itself while rolling forward.
Supernatural fire streams from its rim without consuming the structure. These flames intensify when the creature identifies its assigned quarry, captures a soul, or closes upon a victim attempting to escape.
A correctly depicted Wa-Nyudo has:
- One wheel-shaped chassis.
- One enormous human-like head at its hub.
- A continuous rim connected to the hub by structural spokes.
- No torso, arms, legs, wings, or separate humanoid body.
- A structure made from wood, metal, bone, chains, and kyton modifications.
Behaviour
Wa-Nyudo are relentless rather than reckless. They study settlements from darkness, identify escape routes, and wait until their quarry travels beyond a defended gate, shrine boundary, fortress wall, or place of recognised sanctuary.
A typical hunt follows a deliberate pattern:
- The Wa-Nyudo confirms its quarry through observation, divination, or the terms of its commission.
- It circles the area, leaving scorched tracks and frightening witnesses.
- It attacks at speed, scattering companions, guards, and animals.
- It traps the assigned victim in its jaws.
- It escapes through the Shadow Plane with its captive.
- It may return later for witnesses who attracted its attention.
A Wa-Nyudo may interrupt its attack when shown a seal, contract, protective writ, or credible evidence concerning the identity of its quarry. It does not value mercy, but it values exact compliance with its commission. Proving that it is pursuing the wrong person can therefore halt an attack more reliably than appealing to its compassion.
Wa-Nyudo usually operate alone. Pairs pursue exceptionally dangerous captives, while convoys accompany kyton raids or transport groups of prisoners into the Shadow Plane.
Habitat
Wa-Nyudo originate in kyton-controlled territories of the Shadow Plane, particularly around foundries, prison roads, retrieval halls, living workshops, and gates connecting shadow settlements to mortal lands.
On Earth, they are most often encountered near:
- Mountain passes and forest tracks.
- Abandoned estate gates.
- Burned villages and ruined fortifications.
- Bridges, crossroads, and city approaches.
- Execution grounds and abandoned battlefields.
- Places where a planar compact names a mortal for collection.
In the Japan of 1454, experienced shrine keepers, court diviners, village leagues, and warriors recognise the combination of circular scorch marks, unexplained tooth impressions, and missing travellers as evidence of a Wa-Nyudo hunt.
Wa-Nyudo, D&D 5E 2024
Wa-Nyudo, Pathfinder First Edition
Wa-Nyudo, Pathfinder (Homebrew)
Wa-Nyudo, D&D 3.5
Wa-Nyudo, D&D 5E 2024
Wa-Nyudo
Large Fiend (Kyton), Lawful Evil
Armor Class 18
Hit Points 190 (20d10 + 80)
Speed 70 ft.
Initiative +8 (18)
| STR | DEX | CON | INT | WIS | CHA |
|---|---|---|---|---|---|
| 22 (+6) | 18 (+4) | 18 (+4) | 13 (+1) | 16 (+3) | 17 (+3) |
Saving Throws Dex +8, Con +8, Wis +7, Cha +7
Skills Insight +7, Intimidation +7, Perception +7, Stealth +8
Damage Resistances Bludgeoning, Piercing, and Slashing damage from nonmagical attacks that are not silvered
Damage Immunities Cold, Fire
Condition Immunities Frightened
Senses Darkvision 120 ft., passive Perception 17
Languages Infernal, Japanese; telepathy 120 ft.
Challenge 11 (7,200 XP; Proficiency Bonus +4)
Traits
Fiendish Regeneration. The Wa-Nyudo regains 10 Hit Points at the start of each of its turns if it has at least 1 Hit Point. This trait does not function at the start of the Wa-Nyudo’s next turn after it takes Radiant damage or damage from a silvered weapon.
Magic Resistance. The Wa-Nyudo has Advantage on saving throws against spells and other magical effects.
Searing Agony. The first time during a turn that a creature takes Fire damage from the Wa-Nyudo, that creature must succeed on a DC 17 Constitution saving throw or have the Poisoned condition until the end of its next turn. This condition represents incapacitating supernatural pain rather than poison or disease.
Stable Chassis. The Wa-Nyudo has Advantage on saving throws and ability checks made to resist being knocked Prone or moved against its will. Rubble, corpses, and nonmagical undergrowth do not cost it extra movement.
Unnerving Gaze. When a creature that can see the Wa-Nyudo starts its turn within 30 feet of it, that creature must succeed on a DC 17 Wisdom saving throw or have the Frightened condition and be unable to take Reactions until the start of its next turn. On a successful save, the creature is immune to that Wa-Nyudo’s Unnerving Gaze for 24 hours.
Actions
Multiattack. The Wa-Nyudo makes one Wheel Crush attack and one Fanged Hub attack.
Wheel Crush. Melee Attack Roll: +10, reach 5 ft. Hit: 25 (3d12 + 6) Bludgeoning damage plus 7 (2d6) Fire damage. If the Wa-Nyudo moved at least 20 feet in a straight line immediately before the hit, a Large or smaller target must succeed on a DC 18 Strength saving throw or have the Prone condition. The Wa-Nyudo can move through that target’s space during this turn.
Fanged Hub. Melee Attack Roll: +10, reach 5 ft. Hit: 19 (3d8 + 6) Piercing damage plus 7 (2d6) Necrotic damage. If the target is Large or smaller, it has the Grappled condition (escape DC 18). Until the grapple ends, the target has the Restrained condition, and the Wa-Nyudo cannot use Fanged Hub against another target.
Trampling Circuit — Recharge 5–6. The Wa-Nyudo moves up to twice its Speed without provoking Opportunity Attacks. During this movement, it can enter the spaces of Large or smaller creatures.
Each creature whose space the Wa-Nyudo enters for the first time during this movement must make a DC 17 Dexterity saving throw. On a failed save, the creature takes 22 (4d10) Bludgeoning damage plus 14 (4d6) Fire damage and has the Prone condition. On a successful save, it takes half as much damage only.
The Wa-Nyudo cannot end this movement in another creature’s space.
Shadow Passage — 1/Day. The Wa-Nyudo transports itself to the corresponding location on either the Material Plane or the Shadow Plane. It can take one willing creature within 5 feet of it or one creature Grappled by it.
An unwilling conscious creature must make a DC 17 Charisma saving throw. On a successful save, it remains behind and escapes the grapple.
Bonus Action
Relentless Pursuit. The Wa-Nyudo moves up to half its Speed toward a creature it can see that is Frightened of it. This movement does not provoke Opportunity Attacks.
Reaction
Soul Focus. When a creature possessing a soul dies within 30 feet of the Wa-Nyudo, the Wa-Nyudo can trap that soul within its chassis.
The chassis can contain only one soul. Capturing another releases the first. A trapped soul cannot be returned to life. It is released when the Wa-Nyudo dies, voluntarily releases it, or is incapacitated while an appropriate banishing or soul-releasing effect is used upon its chassis.
Running the 5E Wa-Nyudo
The Wa-Nyudo is a mobile controller and abductor rather than a stationary damage dealer. Its strongest battlefield advantages are speed, forced movement, fear, and the threat of carrying a restrained character into the Shadow Plane.
Use terrain that allows it to build speed and change direction:
- Long roads and narrow village streets.
- Courtyards with several entrances.
- Bridges or mountain passes.
- Burned woodland tracks.
- Ruins containing pillars, gates, and low walls.
The creature should rarely remain beside a single opponent when it can break through the party, scatter characters, and circle back towards its quarry.
5E Encounter Scaling
A Wa-Nyudo is worth 7,200 XP. Using the official D&D 2024 encounter-building guidance, one Wa-Nyudo produces the following approximate encounter difficulties for a party of four characters:
| Party | Expected Difficulty | Notes |
|---|---|---|
| Four 8th-level characters | High | The abduction ability makes this an especially dangerous encounter. |
| Four 9th-level characters | Moderate | A demanding encounter if the party lacks Radiant damage or silvered weapons. |
| Four 10th-level characters | Moderate | The party has more answers, but Shadow Passage remains a serious threat. |
| Four 11th-level characters | Low | Suitable as a mobile hunter or supporting monster. |
| Four 12th-level characters | Low | Add terrain hazards or lesser kytons for a major battle. |
Wa-Nyudo Convoy
A Wa-Nyudo convoy usually consists of one Wa-Nyudo accompanied by several cultists, a conjurer, or a chain devil. Cultists guard prisoners and carry the sealed commissions naming each intended captive, while conjurers conceal the convoy and maintain its route to the Shadow Plane. Chain devils serve as wardens, using their animated chains to bind prisoners, block escape routes, and drag fleeing captives beneath the Wa-Nyudo’s burning wheel. Scorched ruts, loose chains, overturned prison carts, and patches of supernatural fire often turn the ground around the convoy into dangerous terrain.
Wa-Nyudo, Pathfinder First Edition
Kyton, Wa-Nyudo CR 11
XP 12,800
LE Large outsider (evil, extraplanar, kyton, lawful)
Init +8; Senses darkvision 60 ft., low-light vision; Perception +19
Defense
AC 24, touch 14, flat-footed 19 (–1 size, +4 Dexterity, +10 natural, +1 dodge)
hp 149 (13d10+78); regeneration 6
Fort +14, Ref +12, Will +11
DR 10/good or silver; Immune cold, fire; SR 22
Offense
Speed 60 ft.
Melee wheel slam +19 (2d6+7 plus burn), bite +19 (1d8+7 plus bleed)
Space 10 ft.; Reach 5 ft.
Special Attacks bleed 1d6, burn 2d6 (DC 22), searing flame, soul focus, trample (2d6+10 plus burn, DC 23), unnerving gaze (DC 19, 30 ft.)
Spell-Like Abilities
CL 13th; concentration +16
At will—locate creature
3/day—bestow curse (DC 17), fly, scorching ray
1/day—find the path, plane shift (DC 20; Material Plane and Shadow Plane only), trap the soul (DC 21)
Statistics
Str 24, Dex 19, Con 22, Int 13, Wis 16, Cha 17
Base Atk +13; CMB +21; CMD 36
Feats Blind-Fight, Dodge, Improved Initiative, Mobility, Nimble Moves, Spring Attack, Wind Stance
Skills Acrobatics +20 (+32 to jump), Bluff +19, Fly +20, Intimidate +19, Knowledge (planes) +17, Perception +19, Sense Motive +19
Languages Infernal, Japanese
Ecology
Environment any (Shadow Plane)
Organization solitary, pair, or convoy (3–12)
Treasure standard
Special Abilities
Regeneration (Ex). Silver weapons, good-aligned weapons, spells with the good descriptor, and explicitly good-aligned magical effects deal normal damage to a Wa-Nyudo. All other damage is converted to nonlethal damage, which the Wa-Nyudo heals at a rate of 6 points per round. It can be killed while unconscious only by an attack capable of dealing normal damage to it.
Searing Flame (Su). The first time each round that a creature takes fire damage from a Wa-Nyudo, it must succeed on a DC 22 Fortitude save or become sickened by supernatural pain for 1d4 rounds. This is a pain effect. The save DC is Constitution-based.
Soul Focus (Su). A Wa-Nyudo requires no gem or other focus when using its trap the soul spell-like ability. Its chassis serves as the focus and can contain one soul at a time. Capturing another soul releases the first.
Destroying the Wa-Nyudo releases the imprisoned soul. A typical Wa-Nyudo cannot use this ability against a creature possessing more than 13 Hit Dice.
Unnerving Gaze (Su). A creature that fails a DC 19 Will save against the Wa-Nyudo’s gaze cowers for 1 round. This is a mind-affecting fear effect. The save DC is Charisma-based.
Pathfinder Encounter Scaling
For a standard party of four characters, a CR 11 Wa-Nyudo produces the following encounter difficulties. These categories follow the Pathfinder First Edition encounter-building guidance.
| Party APL | Expected Difficulty |
|---|---|
| APL 8 | Epic |
| APL 9 | Hard |
| APL 10 | Challenging |
| APL 11 | Average |
| APL 12 | Easy |
Wa-Nyudo, Pathfinder (Homebrew)
The Wa-Nyudo – A flaming wheel the size of an ox rolls towards you. Impaled on its spokes is an enormous head with lolling eyes and chattering, razor-sharp teeth.
Source Demiurge113
Originally posted on Probing the Membrane of Science
Although the sinister outsiders known as kytons prefer to indoctrinate willing converts to their philosophy of pain and mutilation, there are those whom they select to be ‘forcibly rewarded’. The hideous wa-nyudo are the collection agents of the kytons, tasked with retrieving mortal assets and dragging them back, alive or dead, to the Plane of Shadow. Fanatical zealots, wa-nyudo have discarded almost all of their humanoid forms, leaving nothing but a hateful, leering head. Wa-nyudo have chassis of wood, metal and bone built to hold their heads and give them phenomenal speed.
Wa-nyudo are typically found on the Material Plane on a mission of retrieval, but they often take detours to torment and destroy mortals besides their targets. Wa-nyudo take delight in focusing their attention on those who pay attention to them, punishing their victims for the sins of curiosity and fear. In combat, a wa-nyudo is constantly mobile, rolling over opponents and setting them ablaze before returning to inflict deep, bleeding wounds with their fangs.
| Kyton Wa-Nyudo CR 11 |
| XP 12,800 LE Large outsider (evil, extraplanar, lawful, kyton) Init +8; Senses darkvision 60 ft., low-light vision, Perception +19 |
| DEFENSE |
| AC 24, touch 14, flat-footed 19 (-1 size, +4 Dexterity, +10 natural, +1 Dodge) hp 149 (13d10+78); regeneration 6 (silver, good weapons, good spells) Fort +14, Ref +8, Will +11 DR 10/silver or good; Immune cold, fire; SR 22 |
| OFFENSE |
| Speed 60 ft. Melee slam +19 (2d6+7 plus burn), bite +19 (1d6+7 plus bleed) Space 10 ft.; Reach 5 ft. Special Attacks bleed (1d6), burn (2d6, DC 22), searing flames, soul focus, trample (2d6+10 plus burn, DC 23), unnerving gaze (DC 19, 30 ft.) Spell-like Abilities CL 13th, concentration +16 At will locate creature 3/day bestow curse (DC 16), fly, scorching ray 1/day find the path, plane shift (DC 20, Material Plane and Plane of Shadow only), trap the soul (DC 22) |
| STATISTICS |
| Strength 24, Dexterity 19, Constitution 22, Intelligence 13, Wisdom 16, Charisma 17 Base Atk +13; CMB +21; CMD 36 Feats Blind-fight, Dodge, Improved Initiative, Mobility, Nimble Moves, Spring Attack, Wind Stance Skills Acrobatics +20 (+32 to jump), Bluff +19, Fly +20, Intimidate +19, Knowledge (planes) +17, Perception +19, Sense Motive +19 Languages Common, Infernal |
| ECOLOGY |
| Environment Plane of Shadow Organization solitary, pair or convoy (3-12) Treasure standard |
| SPECIAL ABILITIES |
| Searing Flame (Su) Any creature that takes fire damage dealt by a wa-nyudo must succeed a DC 22 Fortitude save or be sickened with pain for 1d4 rounds. The save DC is Constitution-based. This is a pain effect. Soul Focus (Su) A wa-nyudo can use its trap the soul spell-like ability without a focus component, using its own body as a focus. Killing the wa-nyudo releases a soul trapped in this way. A wa-nyudo cannot use this spell-like ability against any creature with more Hit Dice than it has (13 HD for the typical specimen). Unnerving Gaze (Su) Creatures affected by a wa-nyudo’s gaze cower in fear for 1 round. This is a mind-influencing fear effect. |
Wa-Nyudo, D&D 3.5
Wa-Nyudo
Large Outsider (Evil, Extraplanar, Kyton, Lawful)
Hit Dice 13d8+78 (136 hp)
Initiative +8
Speed 60 ft.
Armor Class 24, touch 14, flat-footed 19 (–1 size, +4 Dex, +10 natural, +1 dodge)
Base Attack/Grapple +13/+24
Attack wheel slam +19 melee (2d6+7 plus burn)
Full Attack wheel slam +19 melee (2d6+7 plus burn) and bite +14 melee (1d8+3 plus bleed)
Space/Reach 10 ft./5 ft.
Special Attacks bleed, burn, searing flame, soul focus, spell-like abilities, trample, unnerving gaze
Special Qualities damage reduction 10/good or silver, darkvision 60 ft., immunity to cold and fire, regeneration 6, spell resistance 22
Saves Fort +14, Ref +12, Will +11
Abilities Str 24, Dex 19, Con 22, Int 13, Wis 16, Cha 17
Skills Balance +20, Bluff +19, Intimidate +19, Jump +35, Knowledge (the planes) +17, Listen +19, Sense Motive +19, Spot +19, Tumble +20
Feats Blind-Fight, Dodge, Improved Initiative, Mobility, Spring Attack
Environment Shadow Plane
Organization solitary, pair, or convoy (3–12)
Challenge Rating 11
Treasure standard
Alignment always lawful evil
Advancement 14–19 HD (Large)
Level Adjustment —
Bleed (Ex)
A creature damaged by the Wa-Nyudo’s bite loses 1d6 hit points at the beginning of each of its turns. A DC 15 Heal check or any magical healing ends the bleeding.
Multiple bleeding wounds inflicted by the same Wa-Nyudo do not stack.
Burn (Su)
The Wa-Nyudo’s wheel slam and trample deal an additional 2d6 points of fire damage. A creature struck must succeed on a DC 22 Reflex save or catch fire, taking another 2d6 points of fire damage during the following round.
The save DC is Constitution-based.
Regeneration (Ex)
Damage dealt to the Wa-Nyudo is treated as nonlethal damage, except for damage from silver weapons, good-aligned weapons, spells with the good descriptor, and other explicitly good-aligned magical effects.
The Wa-Nyudo removes 6 points of nonlethal damage at the beginning of each of its turns. If rendered unconscious through nonlethal damage, it continues regenerating unless an attack capable of dealing lethal damage is used to destroy it.
The creature cannot regrow or reattach an entirely destroyed head, hub, or wheel.
Searing Flame (Su)
The first time each round that a creature takes fire damage from the Wa-Nyudo, it must succeed on a DC 22 Fortitude save or become sickened for 1d4 rounds. This is a pain effect.
Soul Focus (Su)
The Wa-Nyudo can use trap the soul without a gem or separate focus, employing its own chassis instead. It can contain one soul, and destroying the creature releases that soul.
It cannot trap a creature possessing more Hit Dice than the Wa-Nyudo.
Spell-Like Abilities
Caster level 13th.
At will—locate creature
3/day—bestow curse (DC 17), fly, scorching ray
1/day—find the path, plane shift (DC 20; Material Plane and Shadow Plane only), trap the soul (DC 21)
Trample (Ex)
As a full-round action, the Wa-Nyudo can move up to twice its speed and pass through the spaces of creatures at least one size category smaller than itself.
The trample deals 2d6+10 points of bludgeoning damage plus its burn damage. Affected creatures may make attacks of opportunity at a –4 penalty or attempt a DC 23 Reflex save for half damage.
Unnerving Gaze (Su)
Creatures within 30 feet that meet the Wa-Nyudo’s gaze must succeed on a DC 19 Will save or cower for 1 round. This is a mind-affecting fear effect.
Combat Tactics
Before Combat
A Wa-Nyudo uses locate creature or information supplied by its master to identify its quarry. It avoids heavily defended entrances and tests suspected wards by sending flames, animals, or expendable servants across the boundary.
Whenever possible, it attacks while its quarry is travelling, isolated, or separated from recognised authority.
Opening Round
The Wa-Nyudo crosses the battlefield with Trampling Circuit or trample, forcing the party to scatter. It directs its gaze towards healers, spellcasters, and anyone capable of planar travel.
During Combat
The Wa-Nyudo remains mobile and avoids becoming surrounded. It knocks opponents prone, turns sharply, and returns to bite its assigned target.
Once the target is restrained in its jaws, the Wa-Nyudo attempts Shadow Passage or plane shift. It willingly suffers attacks that do not suppress its regeneration if doing so brings it closer to completing the abduction.
Retreat
The Wa-Nyudo withdraws when:
- Its regeneration has been suppressed.
- Its quarry escapes behind a functioning ward.
- Its retrieval contract is demonstrated to be invalid.
- It falls below one-quarter of its Hit Points without securing the target.
- A superior kyton orders it to return.
It remembers every creature that wounded, deceived, or publicly humiliated it.
Non-Combat Resolutions
Challenge the Commission
A Wa-Nyudo’s retrieval order contains a supernatural identifier tied to its quarry. Characters who acquire the document, seal, or spoken formula may uncover an incorrect name, broken bloodline, forged authority, expired obligation, or conflict between legal identity and blood descent.
In D&D 5E 2024, identifying the flaw requires a successful DC 17 Intelligence (Arcana, Investigation, or Religion) check. Presenting the evidence requires a successful DC 17 Charisma (Deception, Intimidation, or Persuasion) check.
On two successes before two failures, the Wa-Nyudo suspends its attack while it seeks new instructions. Failure does not necessarily begin combat immediately; the Wa-Nyudo may demand a substitute, hostage, or proof that can be obtained only within a limited time.
Sabotage the Chassis
A concealed character adjacent to an inactive Wa-Nyudo can spend 1 minute loosening a load-bearing spoke.
In D&D 5E 2024, this requires a successful DC 17 Dexterity check using Carpenter’s Tools, Smith’s Tools, or Thieves’ Tools. On a success, the first time the Wa-Nyudo uses Trampling Circuit, it takes 21 (6d6) Bludgeoning damage, falls Prone, and loses its Reaction until the end of its next turn.
Threshold Ward
A protective inscription invoking the traditional prohibition associated with the village of Shōbo can obstruct a Wa-Nyudo at a doorway, bridge, gate, or shrine boundary.
Preparing the ward requires 10 minutes, suitable calligraphy materials, and a successful DC 17 Intelligence (Religion) check using Calligrapher’s Supplies. When the Wa-Nyudo attempts to cross, it must succeed on a DC 17 Charisma saving throw or become unable to cross that threshold until the next dawn.
The inscription burns away after forcing one saving throw.
Rescue After Abduction
Shadow Passage should create a rescue adventure rather than an immediate campaign-ending loss.
A living captive reaches a kyton holding station and remains imprisoned for 1d4+1 days before being transformed, dismembered, transferred, or placed before the authority that issued the retrieval order. During that period, divination, a recovered spoke, the Wa-Nyudo’s contract, or its scorched tracks can reveal the corresponding location on the Shadow Plane.
Signs of a Wa-Nyudo Hunt
- A single scorched wheel track without prints from a horse or cart.
- Parallel tooth marks cut into gates at the height of a human head.
- Circular burns surrounding a written name.
- Dogs refusing to look towards a particular road.
- Witnesses hearing chattering teeth before seeing flames.
- Ash blowing against the natural direction of the wind.
- A victim’s likeness repeatedly appearing in soot.
- A contract seal impressed into burned timber.
- Iron nails becoming painfully hot as the creature approaches.
- Wheel tracks that end at a wall or continue across deep water.
Law, Surrender, and Consequences
A Wa-Nyudo possesses intelligence, language, and the ability to enter binding agreements. Local authorities nevertheless treat an active Wa-Nyudo as a hostile extraplanar abductor rather than a protected traveller.
Its surrender can be accepted to recover prisoners, obtain evidence, or identify the authority that issued its commission. Safe conduct offered by a recognised ruler, magistrate, shrine authority, or military commander remains binding upon those who accepted the agreement.
Human collaborators, summoners, corrupt officials, and cultists retain personhood and remain answerable to the relevant earthly authority. Destroying the Wa-Nyudo does not settle the crimes committed by its mortal agents.
A surrendered Wa-Nyudo rarely experiences remorse. It cooperates because a contract, threat, legal contradiction, or superior authority has made cooperation preferable to immediate destruction.
Ecology
Wa-Nyudo do not reproduce biologically. A kyton becomes a Wa-Nyudo by removing most of its body and commissioning or constructing a wheel-shaped replacement. The remaining head expands as the creature feeds upon pain, terror, and captured spiritual energy.
The chassis is periodically rebuilt. Older Wa-Nyudo replace wooden sections with shadow iron, bones taken from powerful victims, and chains seized from defeated rivals. A veteran specimen may therefore contain materials gathered across several centuries and many worlds.
A detached Wa-Nyudo head remains alive for several minutes but possesses little mobility. Kyton surgeons can mount a recovered head within a replacement chassis unless the head is destroyed, consecrated, or removed from planar shadow.
Although Wa-Nyudo can consume flesh, they do not require mortal food. Their hunting, biting, and mutilation are expressions of doctrine rather than hunger.
Treasure and Remains
A defeated Wa-Nyudo may carry or contain:
- Sealed retrieval commissions.
- Jewellery and signet rings taken from captives.
- Keys to prisons on the Shadow Plane.
- Coins fused into its rim.
- Silver weapons lodged within its chassis.
- Correspondence identifying mortal collaborators.
- One imprisoned soul.
- Shadow-forged spokes useful to an experienced smith.
- Maps showing temporary crossings into the Shadow Plane.
- Fragments of contracts written on skin, silk, iron, or bone.
The supernatural fire dies when the creature is destroyed, but the rim remains dangerously hot for 1 hour.
A complete shadow-forged spoke may be used as a material key when researching a route to the Wa-Nyudo’s home territory. Possessing it may also allow surviving kytons to locate the bearer.
Adventure Hooks
The Wrong Heir
A Wa-Nyudo arrives to collect the heir of a noble household. Its contract names a blood descendant, but the recognised heir was adopted after the family’s natural children died.
The creature begins taking servants and witnesses while deciding whether law, blood, inheritance, or public recognition governs its commission.
Convoy of Burning Wheels
Several villages report flaming wheels travelling west after midnight. The Wa-Nyudo are transporting living captives rather than hunting new victims.
Destroying the convoy’s leader releases one trapped soul but leaves the surviving prisoners stranded between the Material and Shadow Planes.
The Missing Brushstroke
A traditional protective inscription has defended an estate for generations. The latest copyist omitted one stroke, and a Wa-Nyudo has begun circling the outer wall.
The apparent copying error was deliberate. Someone inside the estate wants the creature to enter.
The Ashen Commission
A magistrate discovers that several disappearances were authorised by documents bearing his own seal. The seal is genuine, but the orders were issued in dreams he cannot remember.
The Wa-Nyudo considers the commissions valid and is already pursuing the next name.
The Wheel Beneath the Lake
Fishermen see a circle of fire rolling beneath the surface of a mountain lake. A damaged Wa-Nyudo is trapped below, unable to reach the Shadow Plane while a silver spear remains embedded in its hub.
It offers information about missing captives in exchange for the weapon’s removal.
Historical and Mythic Context
The Wa-Nyudo is inspired by the Japanese wanyūdō, a supernatural apparition traditionally depicted as a burning cartwheel containing the furious face or severed head of a man. Its name is commonly translated as “wheel monk.”
Toriyama Sekien’s public-domain illustration of the wanyūdō appears in the eighteenth-century Konjaku Gazu Zoku Hyakki. The image remains one of the clearest historical visual references for the creature: a flaming wheel with a glaring human head fixed at its centre.
Folkloric accounts associate the apparition with punishment, stolen souls, dangerous curiosity, and the consequences of looking upon what should remain unseen. Later retellings describe protective inscriptions capable of driving it away. A modern overview is available through Yokai.com’s Wanyūdō entry.
The SpiralWorlds version combines that Japanese supernatural image with the kyton tradition of bodily reconstruction, ritualised suffering, abduction, and residence upon the Shadow Plane.
For broader context, see the guides to Asian mythology monsters, outsiders, and the Shadow Plane.
Related Creatures and Locations
External Rules and Research
- D&D 2024 DM’s Toolbox and encounter-building guidance
- Wizards of the Coast System Reference Document resources
- Archives of Nethys — Pathfinder encounter-building guidance
- Archives of Nethys — Kyton family
- Paizo licensing information
- Wikimedia Commons — Toriyama Sekien’s Wanyūdō
- Yokai.com — Wanyūdō