“Heresy Devil (Ayngavhaul) — The Fiend Who Turns Faith Into Damnation”
Heresy Devil (Ayngavhaul): Wreathed in orbiting blasphemous tomes and draped in tattered mockeries of holy vestments, this corpulent fiend twists sacred truth into infernal dogma, wielding faith itself as the deadliest weapon of Hell.

Obscenely bloated and draped in tattered parodies of holy vestments, the Heresy Devil is Hell’s false prophet—an infernal theologian who corrupts faith, rewrites divine law, and turns salvation itself into a weapon of damnation.
Appearance
A Heresy Devil’s bloated, pallid body hovers inches above the ground, its leaking flesh covered in blisters and weeping sores that glisten like molten wax. Scrolls and cracked tomes orbit its bulk, inscribed with living scripture that mutters in Infernal tongues. Its eyes are tiny, glassy beads set deep within folds of flesh, glimmering above a vast, leering mouth that never stops smiling—a grotesque parody of divine grace wrapped in sanctimonious rot.
Behaviour
Eloquent, patient, and perversely pious, the Ayngavhaul behaves like a preacher giving sermon, its every word a calculated blasphemy. It prefers dialogue over battle, using rhetoric, logic, and divine half-truths to erode conviction. When provoked, it fights with cruel intelligence, warping holy power into searing bursts of corrupted radiance while taunting its foes with their own faltering faith.
Habitat
Heresy Devils dwell in Hell’s great cathedrals of lies—vast infernal libraries and temples devoted to false doctrine. On mortal planes, they infest centers of worship, universities, or sacred ruins, where the faithful are numerous and doubt can spread like fire. Wherever devotion gathers, an Ayngavhaul sees fertile ground for corruption.
Modus Operandi
The Heresy Devil masquerades as a prophet, angel, or divine emissary, preaching a gospel laced with infernal logic. It infiltrates religious hierarchies, subtly twisting creeds, laws, and rituals to serve Hell’s cause. In battle, it weaponizes scripture itself—summoning chains of burning text, blasphemous light, and illusions of false miracles—to unmake faith in those who oppose it.
Motivation
Driven by the belief that truth itself is Hell’s greatest rival, the Ayngavhaul seeks to prove that even the holiest souls can be led astray. Every heresy it spawns, every church it divides, and every prayer it poisons strengthens its conviction that all faith is but a lie waiting to be perfected in fire.
Heresy Devil (Ayngavhaul) 5e 2024
Ayngavhaul, Heresy Devil 5E
Ayngavhaul (Heresy Devil) Pathfinder
Heresy Devil (Ayngavhaul)

Large Fiend (Devil), Lawful Evil
Armor Class: 19 (Infernal Authority)
Hit Points: 310 (23d10 + 184)
Speed: 20 ft., fly 40 ft. (hover)
STR | DEX | CON | INT | WIS | CHA |
---|---|---|---|---|---|
22 (+6) | 10 (+0) | 26 (+8) | 20 (+5) | 18 (+4) | 25 (+7) |
Saving Throws: Int +11, Wis +10, Cha +13
Skills: Arcana +11, Deception +13, Insight +10, Religion +11, Persuasion +13
Damage Resistances: cold; bludgeoning, piercing, and slashing from nonmagical attacks that aren’t silvered
Damage Immunities: fire, poison, radiant
Condition Immunities: charmed, frightened, poisoned
Senses: truesight 120 ft., passive Perception 14
Languages: Infernal, Celestial, Common, telepathy 120 ft.
Challenge: 19 (22,000 XP)
Proficiency Bonus: +6
Infernal Scholar of Blasphemy.
The Heresy Devil has advantage on Intelligence (Religion) and Charisma (Deception) checks made regarding divine or holy matters. When it speaks on such topics, creatures of its choice within 60 feet must succeed on a DC 19 Wisdom saving throw or be Charmed until the end of their next turn, believing the devil’s words to be sacred truth.
Aura of Doubt.
Creatures of the devil’s choice within 30 feet must make a DC 19 Wisdom saving throw at the start of their turns. On a failed save, the creature has disadvantage on attack rolls and saving throws against the devil’s abilities until the start of its next turn.
Magic Resistance.
The Heresy Devil has advantage on saving throws against spells and other magical effects.
Magic Weapons.
The Heresy Devil’s weapon attacks are magical.
Actions
Multiattack.
The Heresy Devil makes two Blasphemous Corpus attacks or uses Blasphemous Revelation once.
Blasphemous Corpus. Melee Weapon Attack: +12 to hit, reach 15 ft., one target.
Hit: 21 (3d10 + 6) bludgeoning + 10 (3d6) slashing, radiant or necrotic damage (devil’s choice).
Description: The Ayngavhaul lashes out with a swirling mass of cursed tomes and razor-edged scrolls, striking with crushing weight while the sharp, infernal inscriptions slice flesh and soul alike. Targets must succeed on a DC 19 Wisdom saving throw or have disadvantage on their next saving throw against spells until the end of their next turn.
Blasphemous Revelation (Recharge 5–6).
The Heresy Devil releases a wave of twisted scripture in a 60-foot radius. Each creature of its choice must make a DC 20 Wisdom saving throw. On a failure, a creature takes 45 (10d8) radiant damage and is Stunned until the end of its next turn. On a success, it takes half damage and isn’t stunned.
Command Heresy (1/Day).
The devil speaks a lie so profound that reality bends to it. Up to six creatures of its choice within 90 feet must succeed on a DC 20 Charisma saving throw or be Charmed for 1 hour, regarding the devil as a divine messenger and defending it zealously. Charmed creatures can repeat the save at the end of each hour or if attacked.
Spellcasting.
The Heresy Devil is a 16th-level spellcaster (spell save DC 21, +13 to hit with spell attacks). It requires no components when casting its spells, using Charisma as its spellcasting ability.
At Will: thaumaturgy, detect thoughts, suggestion
3/day each: dispel magic, fear, flame strike, greater invisibility, geas
1/day each: harm, mass suggestion, unholy aura (as holy aura), true seeing
Reactions
Twist the Faith.
When a creature within 60 feet casts a spell with the divine tag (cleric, paladin, or druid spell), the devil can force the caster to make a DC 19 Charisma saving throw. On a failed save, the spell fails and the slot is expended, its prayer consumed by infernal logic.
Legendary Actions
The Heresy Devil can take 3 legendary actions, only one at a time, at the end of another creature’s turn. It regains spent actions at the start of its turn.
- Doubtful Murmur. One creature of the devil’s choice within 30 feet must succeed on a DC 19 Wisdom saving throw or have disadvantage on its next attack roll or saving throw.
- Blasphemous Echo. The devil reactivates its Aura of Doubt.
- Infernal Revelation (Costs 2 Actions). One creature within 60 feet must make a DC 21 Wisdom save or take 22 (4d10) psychic damage and be Frightened until the end of its next turn.
- Summon Lesser Devils (Costs 3 Actions). Summons 1d4 barbed devils or 1d2 erinyes in spaces within 60 feet. They vanish after 1 minute or when the devil dies.
Tactics
The Heresy Devil begins combat by spreading Aura of Doubt, targeting divine casters first. It uses Blasphemous Revelation to stun groups, then Command Heresy to turn enemies into allies. It remains hovering out of melee, striking with Blasphemous Corpus and high-level spells, mocking faith and twisting miracles into peril. When threatened, it summons infernal allies and uses Twist the Faith to cripple divine attacks.
Ayngavhaul, Heresy Devil

Huge fiend (devil), lawful evil
________________________________________________________________________________
Armor Class 16 (natural)
Hit Points 172 (15d12 + 75)
Speed 10 ft., fly 40 ft.
________________________________________________________________________________
STR 20 (+5) DEX 8 (-1) CON 20 (+5) INT 20 (+5) WIS 19 (+4) CHA 19 (+4)
________________________________________________________________________________
Saving Throws Dex +3, Con +9, Wis +8
Skills Arcana +13, Deception +8, History +13, Insight +8, Religion +13
Damage Resistances cold; bludgeoning, piercing, and slashing from nonmagical weapons that aren’t silvered
Damage Immunities fire, poison
Condition Immunities poisoned
Senses darkvision 120 ft., passive Perception 14
Languages Infernal, telepathy 120 ft.
Treasure –
Challenge 10 (5,900 XP)
________________________________________________________________________________
Devil’s Sight. Magical darkness doesn’t impede the devil’s darkvision.
Magic Resistance. The devil has advantage on saving throws against spells and other magical effects.
ACTIONS
________________________________________________________________________________
Multiattack. The devil makes two attacks, one with its slam and one with its bite. It can replace either with a searing word.
Slam: Melee Weapon Attack: +9 to hit, reach 10 ft., one target. Hit: 18 (3d8 + 5) bludgeoning damage. If the target is Large or smaller, it must make a DC 17 Dexterity saving throw or be restrained by the devil’s throne. The creature takes automatic slam damage each round, and can make a Dexterity save at the end of its turn each round to free itself. If the devil moves or uses its slam on another creature, this effect ends.
Bite: Melee Weapon Attack: +9 to hit, reach 5 ft., one target. Hit: 12 (2d6 + 5) piercing damage.
Searing Word: Ranged Spell Attack: +9 to hit, range 150 ft., one target. Hit: 14 (4d6) fire damage and 14 (4d6) thunder damage.
Blasphemous Bile (Recharge 6): The devil expels putrid bile in a 30-foot line. Each creature in that area must make a DC 17 Dexterity saving throw, taking 45 (10d8) acid damage on a failed save, or half as much damage on a successful one. A divine spellcaster that fails their save suffers disadvantage on all spell attacks and the targets of its spell effects have advantage on any saving throws made against them. This effect lasts for 1 hour or until a creature uses its action and a gallon of liquid (or any amount of holy water) to wash the putrescence off.
Devil, Ayngavhaul (Heresy Devil)

Seemingly fused with a monstrous throne of iron skulls, this impossibly corpulent being floats several feet off the ground. Trappings cut in mockery of holy vestments do little to cover the thing’s pallid, leaking rolls of blister-pocked girth. Worthless, clublike hands waggle like maggots, directing a cloud of weathered scrolls and blasphemous tomes that orbit its bulk. Barely distinguishable amid its mound of chins squints a pair of glassy black eyes, riding above a disproportionately wide mouth curled into a perpetually lecherous grin.
[This content was created by Paizo Publishing LLC for the Pathfinder rules but is not from the Pathfinder RPG product line.]
Bloated scholars of despair, ayngavhauls collect, create, and spread heresies and apocrypha, sowing disbelief and corruption to all who would seek their foul wisdom. Ironically among the most humanlike, yet still most repulsive breeds of devilkind, these corpulent blasphemers are barely even able to move without the aid of their profane floating thrones.
Although their bloated forms make them considerably less of a threat than their brethren physically, they speak maledictions foul enough to agonize those who hear them, yet even with such powers of vicious wisdom, their true strength lies in their envenomed words and temptations of the mind. Their centuries of research grant them great leverage over their diabolical kin, and few devils dare not obey the summons of these hellish scholars.
Heresy Devil (Ayngavhaul) CR 12 |
XP 19,200 LE Huge outsider (devil, evil, extraplanar, lawful) Init +3; Senses Darkvision 60 ft., see in darkness; Perception +21 |
DEFENSE |
AC 29, touch 7, flat-footed 29 (+4 armor, -1 Dexterity, +18 natural,2 size) hp 175 (13d10+104); fast healing 5 Fort +17, Ref +3, Will +13 DR 5/good; Immune fire, poison; Resist acid 10, cold 10; SR 22 |
OFFENSE |
Speed 10 ft., Fly 40 ft. (perfect) Melee 2 slams +18 (2d8+7), bite +18 (2d6+7) Ranged searing word +10 (3d6) Space 15 ft.; Reach 5 ft. Special Attacks blasphemous bile Spell-Like Abilities (CL 13th, concentration +18, touch +18) At will – deathwatch, greater teleport (self plus 50 lbs. of objects only), illusory script (DC 17), mage hand, major image (DC 17), message 3/day – contagion (DC 19), deeper darkness, dispel good, dispel magic, invisibility purge, magic circle against good, speak with dead (DC 18), telekinesis (DC 20), stinking cloud (DC 17), summon monster V, unholy blight (DC 19), zone of silence 1/day – blasphemy (DC 20), legend lore, mislead, unhallow, summon (6th level, 2d6 imps, 1d4 bearded devils, or 2 bone devils 80%, contract devil 45%) |
STATISTICS |
Strength 24, Dexterity 8, Constitution 24, Intelligence 22, Wisdom 21, Charisma 20 Base Atk +13; CMB +18; CMD +37 Feats Diehard, Endurance, Great Fortitude, Improved Initiative, Persuasive, Toughness Skills Bluff +21, Diplomacy +25, Fly +8, Intimidate +17, Knowledge (arcana) +22, Knowledge (history) +19, Knowledge (planes) +22, Knowledge (religion) +22, Perception +21, Perform (oratory) +18, Profession (librarian) +10, Sense Motive +21, Spellcraft +22 Languages Abyssal, Celestial, Draconic, Infernal SQ Corpulence, Devil Summoner, Throne of Skulls |
SPECIAL ABILITIES |
Corpulence (Ex) Ayngavhauls are greasy and grossly obese. This extraordinary bulk provides them with a +10 bonus on their combat maneuver defense. Blasphemous Bile (Su) 30-ft. line, once every 1d4 hours; damage 4d6 acid, Reflex DC 23 half. Those struck by this bile find themselves drenched in liquid corruption so profound it impede the power of non-evil divine magic for 10 minutes. Any non-evil divine spellcaster who casts a spell targeting a creature soaked in an ayngavhaul’s bile must make a DC 23 caster level check or have the spell fail. A creature affected by this bile may wash off the sludge by spending a round and using at least a gallon of fluid to cleanse itself. The save DC is Constitution-based. Devil Summoner (Su) Ayngavhauls know the secrets of all breeds of devils, utilizing such leverage in the summoning of their kind. Any devil within 30 feet of an ayngavhaul has half again the normal chance of having a fiend respond to its summon devil ability. For example, an osyluth‘s usual 35% chance to summon another bone devil increases to 52% when within 30 feet of an ayngavhaul. Summoning bonuses provided by multiple ayngavahuls do not stack. Ayngavahuls are immune to this ability, from both themselves and others of their kind. Searing Word (Su) An ayngavhaul can speak words of torment, giving them shape and sending them streaking toward their enemies in the form of diabolical sigils. Any good-aligned creature struck by one of these infernal words takes 3d6 points of Hellfire damage (half fire, half evil energy); nongood creatures take half damage. These words cannot affect creatures affected by protection from evil or within an area of magical silence. Throne of Skulls (Su) All ayngavhauls hover upon fearsome infernal thrones. These thrones grant the devils their Fly speed and a +4 armor bonus. Should an ayngavhaul be grappled or knocked down, it is unseated from its throne and loses these benefits. An ayngavhaul has telepathic command over its throne and may call its conveyance back and reseat itself as a full-round action. |
ECOLOGY |
Environment Hell Organization solitary, pair, or lecture (3-8) Treasure standard |
Ecology
Ayngavhauls’ bloated girths make them slaves to their repulsive physical forms. All ayngavhauls, even the newly formed, are monstrously obese, trapped within prisons of their own leaking, diabolical flesh. To aid them, though, the forges of Phlegethon create terrifying thrones empowered by infernal magics. These foul chariots hold their corpulent masters aloft, serving as both vehicles and sources of profane protection. Each throne of skulls is bound to a specific ayngavhaul, dissolving into a pile of ashes and a breath of searing iron dust should its master be destroyed.
Habitat & Society
The majority of ayngavhuals frequent the grim libraries of Hell, particularly the mired museums of Stygia; the Fallen Fastness of Dis; and Betzebbul, the palace of Baalzebul, in Cocytus. Within these heretical storehouses and academies of evil, these grotesque devils rewrite the histories of countless worlds to obscure truths and skew the past toward the desires of Hell.
Grotesque curators of a sort, individual ayngavhauls take great pride in specializing in fields none of their brethren have ever thought to focus their studies upon the more obscure and blasphemous, the better. Thus, while one devil might spend eons learning all there is to know of linnorm frost poisons, another might research the nuances of Azlanti voice tearing.
Each seeks to promote its particular field of research above all others, sowing its knowledge among their blasphemous works, minions, and summoners who might put such foul Wisdom to the most sinister uses. They prove incessantly paranoid that the works of their brethren might be outstripping their own discoveries, or that others in related fields might be stealing their research, thus proving both suspicious of their kindred and intimately familiar with the works of other infernal scholars.
As such, a single ayngavhaul might begrudgingly point a summoner in search of specific information toward a diabolical expert, though these knowledge-obsessed fiends never reveal their secrets without demanding a price.
Robes of Lead
The eldest ayngavhaul garb themselves in robes of lead, massive suits of armor imbued with diabolical runes and profane symbols. These hulking, blasphemous vestments do little to impede the corpulent fiends’ already encumbered movement, yet grant them significant defense against servants of the divine.
Section 15: Copyright Notice – Pathfinder Chronicles: Book of the Damned Volume 1
Pathfinder Chronicles: Princes of Darkness, Book of the Damned, Vol. I. Copyright 2009, Paizo Publishing, LLC; Author: F. Wesley Schneider.