Diabolic Dragon (Ancient)

Level 20 / Grg / divine

Level20
Armor Class44
Hit Points390
Perception+33
Speed70 feet, Fly 180 feet
STR+10modifier
DEX+5modifier
CON+8modifier
INT+5modifier
WIS+7modifier
CHA+8modifier
Saving Throws

Fortitude +36, Reflex +32, Will +32

Skills

Acrobatics +33, Athletics +38, Deception +34, Diplomacy +36, Intimidation +34, Religion +35, Society +33, Thievery +33

Senses

Greater Darkvision, Scent 60 feet Imprecise

Languages

Common, Diabolic, Draconic, Empyrean, Necril, Pyric, Aklo, Chthonian

Immunities

Fire, Paralyzed, Sleep

Weaknesses

Holy 15

Actions & Abilities

Jaws

Attack +38

Damage: 2d6 Fire, 4d12+18 Piercing

Claws

Attack +38

Damage: 2d6 Fire, 4d8+18 Piercing

Tail

Attack +36

Damage: 4d8+18 Bludgeoning, 2d6 Fire

Smoke Vision

Passive

Smoke doesn't impair the dragon's vision; they ignore the condition from smoke.

+2 Status to All Saves vs. Divine

Passive

Frightful Presence

Passive

90 feet.

Hell's Sting

Reaction

Trigger The dragon is critically hit with a melee attack

Effect The dragon channels the rancor of Hell back through the body of their foe, overwhelming it with an infernal assault on the mind. The triggering creature takes 10d6[mental] damage with a save. Holy creatures use an outcome one degree of success worse than they roll on their saving throw.

Reactive Strike

Reaction

Diabolic Fire

Passive

Any fire damage that a diabolic dragon deals, including fire damage from spells, is imbued with the unholy power of Hell to scorch the spirit as well. A creature takes spirit damage instead of fire damage if that would be more detrimental to the creature (as determined by the GM). A diabolic dragon is immune to the diabolic fire of other diabolic dragons, the fire from divine immolation, and similar effects.

Draconic Frenzy

2 actions

The dragon makes two claw Strikes and one tail Strike in any order.

Draconic Momentum

Passive

The dragon recharges their Hellfire Breath whenever they score a critical hit with a Strike.

Hellfire Breath

2 actions

The dragon unleashes a blast of infernal fire that deals 21d6[fire|options:area-damage] damage in a ( save).

The dragon can't use Hellfire Breath again for {1d4 rounds}.

Improved Grab

Free action

Improved Knockdown

Free action

Spellcasting

Divine Innate

DC 40

Creature Abilities

Smoke Vision. Smoke doesn't impair the dragon's vision; they ignore the condition from smoke.

Frightful Presence. 90 feet.

Hell's Sting. Trigger The dragon is critically hit with a melee attack

Effect The dragon channels the rancor of Hell back through the body of their foe, overwhelming it with an infernal assault on the mind. The triggering creature takes 10d6[mental] damage with a save. Holy creatures use an outcome one degree of success worse than they roll on their saving throw.

Diabolic Fire. Any fire damage that a diabolic dragon deals, including fire damage from spells, is imbued with the unholy power of Hell to scorch the spirit as well. A creature takes spirit damage instead of fire damage if that would be more detrimental to the creature (as determined by the GM). A diabolic dragon is immune to the diabolic fire of other diabolic dragons, the fire from divine immolation, and similar effects.

Draconic Frenzy. The dragon makes two claw Strikes and one tail Strike in any order.

Draconic Momentum. The dragon recharges their Hellfire Breath whenever they score a critical hit with a Strike.

Hellfire Breath. The dragon unleashes a blast of infernal fire that deals 21d6[fire|options:area-damage] damage in a ( save).

The dragon can't use Hellfire Breath again for {1d4 rounds}.

Source, license, and attribution

Source: Pathfinder Monster Core (remaster-core-2026-08-10)

This product is licensed under the ORC License located at the Library of Congress at TX 9-307-067 and available online at various locations. All warranties are disclaimed as set forth therein. Attribution: Pathfinder Monster Core (c) 2024, Paizo Inc.; Authors: Alexander Augunas, Dennis Baker, Kate Baker, Joshua Birdsong, Joseph Blomquist, Logan Bonner, Jason Bulmahn, James Case, John Compton, Paris Crenshaw, Adam Daigle, Darrin Drader, Brian Duckwitz, Robert N. Emerson, Scott Fernandez, Eleanor Ferron, Leo Glass, Matthew Goodall, BJ Hensley, Thurston Hillman, Vanessa Hoskins, James Jacobs, Jenny Jarzabski, Miko Kallio, Jason Keeley, Jeff Lee, Lyz Liddell, Luis Loza, Ron Lundeen, Robert G. McCreary, Philippe-Antoine Menard, Jacob W. Michaels, Dave Nelson, Jason Nelson, Tim Nightengale, Stephen Radney-MacFarland, Mikhail Rekun, Patrick Renie, Alex Riggs, David N. Ross, Michael Sayre, Mark Seifter, Chris S. Sims, Amber Stewart, Jeffrey Swank, William Thompson, Jason Tondro, Clark Valentine, Landon Winkler, Tonya Woldridge, and Linda Zayas-Palmer. Adaptation: Myth Meister PF2e Remaster Compendium, 2026. If you use this Adapted Licensed Material, please credit Myth Meister. The normalized rules records and rules-reference text in the Myth Meister PF2e Remaster Compendium are Adapted Licensed Material offered under the ORC License. Reserved Material in this product includes the Myth Meister name and logos, application source code, visual design and trade dress, and original campaign content. Pathfinder, Paizo, product logos, artwork, maps, trade dress, setting lore, characters, deities, locations, organizations, events, plots, and other Paizo Reserved Material are not included. Myth Meister is not affiliated with or endorsed by Paizo Inc. Expressly Designated Licensed Material: None.

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