Cinderstorm Tyrant

Immolating Juggernaut

"You don't defeat a wildfire by convincing it to stop burning."
— Marshal Rowan Ashcroft
The first sign of a Cinderstorm Tyrant is almost never the fire.   It is the smoke.   Long before the creature comes into view, a dark column climbs into the sky like a storm building from the ground upward. Birds abandon the forest hours before the flames arrive. Herds stampede without direction. Even the most territorial predators flee, driven by instincts older than reason. By the time the first trees ignite, the wilderness has already decided something impossible is coming.   The Cinderstorm Tyrant does not merely burn the landscape.   It becomes the landscape.   Standing nearly forty feet tall, its immense body resembles a mountain of fractured volcanic stone held together by rivers of molten fire. Every movement splits its blackened crust, exposing brilliant veins of molten rock before cooling ash seals them once more. Embers spill endlessly from its limbs while dense clouds of smoke and burning cinders spiral around its body, turning bright afternoons into an oppressive crimson twilight. The air near the creature shimmers violently with heat, making its enormous silhouette appear to distort and shift like something glimpsed through the heart of a furnace.   Its footsteps leave more than footprints.   Wherever the tyrant walks, the earth itself continues burning long after it has passed. Grass blackens before its feet ever touch the ground. Shrubs erupt into flame from radiant heat alone. Trees explode into showers of sparks as sap boils within their trunks. Stone fractures beneath impossible temperatures, while streams hiss into towering clouds of steam that drift for miles across the countryside.   Entire valleys have been transformed into fields of charcoal after a single passage.   Unlike dragons, giants, or even most elementals, the Cinderstorm Tyrant displays no recognizable ambition. It claims no territory. It builds no lair. It gathers no treasure. Scholars have spent centuries attempting to identify some pattern in their movements, yet none has ever been discovered. A tyrant may wander across a mountain range for months before abruptly descending into a fertile river valley. Another might spend years pacing the edge of an active volcano before vanishing into the desert without explanation.   If there is purpose behind these journeys, it belongs to the logic of fire itself.   This lack of intent makes the creature uniquely terrifying.   Predators can be avoided. Armies can be negotiated with. Even dragons may sometimes be reasoned with.   A wildfire cannot.   The Cinderstorm Tyrant does not hate the villages it destroys because it does not acknowledge they exist. Homes, forests, castles, and entire cities are reduced to ash with the same complete indifference. Living creatures are no different from trees or boulders. If they happen to stand where the tyrant intends to walk, they burn.   Survivors often describe the encounter less as fighting a monster and more as struggling against a natural disaster that simply refused to remain in one place.   This comparison is not entirely inaccurate.   Every aspect of the creature encourages motion. It advances relentlessly, never lingering unless physically prevented from doing so. As it moves, flames spread behind it in widening trails, trapping those who hesitate and steadily reducing the battlefield to a maze of burning ground. Those who attempt to surround it soon discover that they have instead surrounded themselves with fire.   Veteran monster hunters advise a simple rule.   Never chase a Cinderstorm Tyrant.   Outrunning the flames is difficult enough. Walking willingly into the inferno it leaves behind borders on suicide.   Fortunately, encounters with these towering elementals remain extraordinarily rare. Their immense size and unmistakable trail of devastation make them impossible to overlook, allowing entire kingdoms days or even weeks to prepare evacuation efforts once reliable sightings are confirmed. Bells ring. Messengers ride without pause. Roads fill with refugees carrying whatever possessions they can manage before abandoning everything else to the approaching wall of smoke.   History remembers these migrations almost as carefully as it remembers wars.   Some of the largest forests on Aerith owe their existence to the strange relationship between destruction and renewal. Though the tyrant leaves only ash in its wake, that ash eventually enriches the soil beyond anything that existed before. Decades after its passage, fresh forests often emerge denser and healthier than those that burned. Certain rare plants germinate only in recently scorched earth, while a surprising number of hardy creatures return long before larger animals dare venture back.   Natural philosophers frequently point to this cycle as evidence that the Cinderstorm Tyrant is not an abomination but an essential, if catastrophic, force within the world's ecology.   Few farmers who have watched generations of labor disappear beneath a river of flame find the argument especially comforting.   To most people, the creature represents a terrible contradiction.   It is neither evil nor merciful.   Neither angry nor peaceful.   It does not seek to destroy the world.   It simply carries a piece of the world's oldest fire wherever it goes, utterly indifferent to everything that happens to stand in its path.

"When the smoke reaches the horizon, stop asking where it's going. Start asking how far you can run."
— Darrian Jalon
Genetic Ancestor(s)
Scientific Name
Pyrotyrannus cineris
Average Height
38 ft.
Average Length
62 ft.
Geographic Distribution

Unknown Shores

Cinderstorm Tyrant CR: 20

Gargantuan elemental, unaligned
Armor Class:
Hit Points:
Speed:

STR

-5

DEX

-5

CON

-5

INT

-5

WIS

-5

CHA

-5

Saving Throws: Str +16, Con +13, Wis +10
Damage Resistances: bludgeoning, piercing, and slashing from nonmagical attacks
Damage Immunities: fire, poison
Condition Immunities: charmed, exhaustion, frightened, paralyzed, petrified, poisoned
Senses: darkvision 120 ft., passive Perception 14
Languages: Ignan
Challenge Rating: 20 ( 25,000 XP)
Proficiency Bonus: +6

Special Abilities

Living Inferno

The ground within 20 feet of the cinderstorm tyrant is superheated.   A creature that enters this area for the first time on a turn or ends its turn there takes 10 (3d6) fire damage.  

Smoke Shroud

The area within 30 feet of the cinderstorm tyrant is lightly obscured by swirling ash and smoke.   Ranged weapon attacks made through this smoke beyond 30 feet are made with disadvantage.  

Burning Ground

Certain abilities create Burning Ground.   Burning Ground is difficult terrain.   A creature entering Burning Ground for the first time on a turn or ending its turn there takes 7 (2d6) fire damage.   Burning Ground lasts until the end of the cinderstorm tyrant's next turn unless otherwise noted.  

Infernal Advance

Whenever the cinderstorm tyrant moves, each space it leaves behind becomes Burning Ground.  

Wildfire Incarnate

Whenever the cinderstorm tyrant deals fire damage to a creature, the space that creature occupies becomes Burning Ground.  

Unquenchable

Nonmagical flames within 120 feet of the cinderstorm tyrant cannot be extinguished except by magic.  

Unstoppable Advance

The cinderstorm tyrant can move through the spaces of Huge or smaller creatures.   The first time it enters a creature's space on a turn, that creature must succeed on a DC 22 Strength saving throw or be pushed into the nearest unoccupied space adjacent to the tyrant and take 10 (3d6) bludgeoning damage.   This movement doesn't provoke opportunity attacks.

Actions

Multiattack

The cinderstorm tyrant makes two Slam attacks.  

Slam

Melee Weapon Attack: +16 to hit, reach 15 ft., one target.
Hit: 28 (3d10 + 12) bludgeoning damage plus 14 (4d6) fire damage.   The target must succeed on a DC 22 Strength saving throw or be pushed up to 10 feet.   If pushed into Burning Ground, it immediately suffers its effects.  

Cinder Breath (Recharge 5–6)

The cinderstorm tyrant exhales a roaring torrent of burning ash in a 90-foot cone.   Each creature in the area must make a DC 21 Dexterity saving throw, taking 63 (18d6) fire damage on a failed save, or half as much on a successful one.   A creature that fails the save is also blinded until the end of its next turn.   The affected area becomes Burning Ground.

Bonus Actions

Ash Burst

The cinderstorm tyrant detonates every patch of Burning Ground within 60 feet.   Each creature occupying Burning Ground must succeed on a DC 21 Dexterity saving throw or take 10 (3d6) fire damage and be pushed up to 10 feet.

Legendary Actions

The cinderstorm tyrant can take 3 legendary actions, choosing from the options below. Only one legendary action option can be used at a time and only at the end of another creature's turn. The tyrant regains spent legendary actions at the start of its turn.  

Relentless Advance

The cinderstorm tyrant moves up to half its speed.   This movement triggers Infernal Advance.  

Fan the Flames (Costs 2 Actions)

Choose one area of Burning Ground within 60 feet.   That Burning Ground immediately extends into each adjacent square or space, creating new Burning Ground.  

Ash Pulse (Costs 3 Actions)

Each creature within 15 feet of the cinderstorm tyrant must succeed on a DC 21 Constitution saving throw or take 14 (4d6) fire damage and become blinded until the end of its next turn.

Usual Tactics

Keep the tyrant moving every round. Never leave it stationary unless absolutely forced to. Its greatest weapon isn't its Slam or Cinder Breath. It's the burning battlefield left in its wake. Drive enemies into Burning Ground, force them to reposition, and let the terrain wear them down as the tyrant relentlessly advances.

Comments

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Jul 7, 2026 21:38 by Ben Smith

Oof, there's a challenge :) He's fun.

Jul 8, 2026 00:03

He got out of hand fast. It was a weird combat.

Jul 7, 2026 22:45

Terrifying!

Your freind,

The Graiffe

Working hard at Summercamp 2026

Jul 8, 2026 00:04

It was funny how almost all of them got cooked by this thing in a test run.

Jul 8, 2026 00:05

...I get the sense that you mean cooked literally

Your freind,

The Graiffe

Working hard at Summercamp 2026

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