Kossuth, The Lord of Flames — CR 33 Avatar Stat Block

Avatar of Kossuth

Huge elemental (avatar), neutral

Armor Class: 28 (natural armor)
Hit Points: 805 (46d12 + 506)
Speed: 60 ft., fly 100 ft. (hover)

STR	DEX	CON	INT	WIS	CHA
29 (+9)	28 (+9)	32 (+11)	26 (+8)	28 (+9)	30 (+10)

Saving Throws: Dex +19, Con +21, Int +18, Wis +19, Cha +20
Skills: Arcana +18, Insight +19, Intimidation +20, Perception +19, Religion +18
Damage Resistances: lightning, radiant; bludgeoning, piercing, and slashing from nonmagical attacks
Damage Immunities: fire, necrotic, poison, psychic
Condition Immunities: charmed, exhaustion, frightened, grappled, paralyzed, petrified, poisoned, prone, restrained, stunned
Senses: truesight 180 ft., passive Perception 29
Languages: all, Ignan, telepathy 180 ft.
Challenge: 33 (325,000 XP)
Proficiency Bonus: +10

Traits

Fire Form. Kossuth can move through a space as narrow as 1 inch without squeezing. A creature that touches him or hits him with a melee attack while within 10 feet takes 21 (6d6) fire damage.

Legendary Resistance (4/Day). If Kossuth fails a saving throw, he can choose to succeed instead.

Magic Resistance. Kossuth has advantage on saving throws against spells and other magical effects.

Supreme Flame. Fire damage dealt by Kossuth ignores resistance and treats immunity as resistance. A creature reduced to 0 hit points by this damage is burned to ash with its nonmagical equipment.

Purifying Fire. At the start of each of Kossuth’s turns, he ends one spell or condition affecting him. If the effect originated from a creature, that creature takes 18 (4d8) fire damage.

The Flame Renews (Mythic Trait; 1/Day). When Kossuth is reduced to 0 hit points, he collapses into a white-hot coal, then erupts at the end of the current turn. He regains 402 hit points, ends all conditions affecting him, and can use his mythic actions for 1 hour.

Actions

Multiattack. Kossuth makes four Tendril of Flame attacks.

Tendril of Flame. Melee Weapon Attack: +20 to hit, reach 20 ft., one target. Hit: 25 (3d10 + 9) slashing damage plus 36 (8d8) fire damage. If the target is Large or smaller, Kossuth can pull it up to 20 feet toward him.

White Fire. Ranged Spell Attack: +20 to hit, range 240 ft., one target. Hit: 66 (12d10) fire damage, and one spell of Kossuth’s choice affecting the target ends.

Cleansing Conflagration (Recharge 5–6). Kossuth releases fire in a 90-foot cone. Each creature there makes a DC 28 Dexterity saving throw, taking 99 (18d10) fire damage on a failed save, or half as much on a successful one. On a failed save, each nonartifact magic item carried by the creature is suppressed until the end of the creature’s next turn.

Reactions

Consume the Spell. When Kossuth takes acid, cold, lightning, necrotic, radiant, or thunder damage, he reduces the damage by 30. Each creature within 10 feet then takes fire damage equal to the amount reduced.

Flashover. When a creature within 60 feet regains hit points, Kossuth forces it to make a DC 28 Constitution saving throw. On a failed save, it regains half as many hit points and takes 27 (6d8) fire damage.

Legendary Actions

The avatar can take 3 legendary actions, choosing from the options below. It regains spent legendary actions at the start of its turn.

Flowing Flame. Kossuth moves up to half his speed without provoking opportunity attacks and can move through other creatures’ spaces.

Chain Lash (Costs 2 Actions). Kossuth makes one Tendril of Flame attack against each of up to two different targets.

Burn Away Impurity (Costs 3 Actions). Each creature of Kossuth’s choice within 30 feet makes a DC 28 Constitution saving throw. On a failed save, one beneficial spell affecting the creature ends and it takes 44 (8d10) fire damage. On a successful save, it takes half as much damage.

Lair Actions

On initiative count 20 (losing initiative ties), the avatar uses one lair action. It cannot use the same option two rounds in a row.

Terrace of Trial. A 30-foot-radius area within 120 feet becomes white-hot until initiative count 20 on the next round. A creature that enters the area for the first time on a turn or starts its turn there takes 33 (6d10) fire damage.

Smoke Without Flame. Opaque smoke fills up to three 20-foot cubes until initiative count 20 on the next round. Kossuth sees through it. A creature that starts its turn there must succeed on a DC 26 Constitution saving throw or be blinded until the start of its next turn.

Temper the Faithful. Up to three creatures Kossuth can see gain resistance to all damage until initiative count 20 on the next round. When that resistance reduces damage, the creature takes 7 (2d6) fire damage.

Ashen Boundary. A line of fire up to 120 feet long appears on a solid surface until initiative count 20 on the next round. A hostile creature that crosses it takes 45 (10d8) fire damage and cannot regain hit points until the end of its next turn.

Mythic Actions

The avatar can take 3 mythic actions per day, using one option at a time. It regains spent uses at dawn.

All Returns to Ash. Each hostile creature within 120 feet makes a DC 28 Dexterity saving throw, taking 88 (16d10) fire damage on a failed save, or half as much on a successful one. Nonmagical objects and structures take maximum damage.

Flame of Renewal (Costs 2 Actions). Kossuth or one creature he can see within 120 feet regains 100 hit points and ends all conditions affecting it. Each other creature within 20 feet of the target takes 36 (8d8) fire damage.

The Final Tempering (Costs 3 Actions). One creature within 120 feet makes a DC 28 Constitution saving throw. On a failed save, it takes 132 (24d10) fire damage. On a successful save, it takes half as much damage and gains resistance to all damage until the end of its next turn.

Introduction

Kossuth, the Lord of Flames and Firelord, is the greater elemental power of fire and purification through fire. He embodies flame as destroyer, cleanser, source of invention, and tempering force. He does not promise that what enters the fire will survive.

Druids, elemental archons, fire creatures, Thayans, and mortals drawn to strict hierarchies or radical renewal worship Kossuth. His church organizes the faithful into ascending terraces. Advancement demands greater discipline, risk, and suffering, and some adherents seek honor through voluntary immolation.

The avatar manifests when a corrupt institution refuses every lesser reform, when elemental fire escapes mortal control, or when Kossuth’s church must prove whether its discipline serves renewal or power. He accepts sacrifice only when the giver understands the cost and regards painless purification as a contradiction.

Physical Appearance

Kossuth appears as a huge pillar of flame drawn into a broad humanoid form. White-red fire defines his chest, face, and hands while crimson flame forms the harder outer edge of his silhouette. His eyes burn without pupils.

A tendril of his body becomes a long spiked chain, the favored weapon called Tendril of Flame. The links remain living fire connected to his hand and recoil into his forearm when released.

His voice sounds like a furnace drawing breath. Metal warms before he touches it, impurities bead on its surface, and exposed wood chars in exact lines rather than catching at random.

Roleplaying the Avatar

Kossuth is remote, hierarchical, and absolute. He treats pain as evidence rather than virtue and asks what a creature is willing to lose to become what it claims it should be.

Face south when receiving prayer or formal submission.
Describe choices as fuel, flame, ash, and the shape that remains.
Ask who benefits from a proposed purification.
Respect endurance but despise suffering performed only for display.
When resisted, remove one protection at a time before striking the creature behind it.

Use in a Campaign

The Cleansing Terrace

An Eternal Flame intends to burn an infected district before a supernatural plague spreads. Kossuth appears to judge whether the act is purification, political murder, or both.

Oath of Firewalking

The only path into an imprisoned primordial crosses living fire that burns away magic, memory, or flesh according to what each traveler refuses to surrender.

The Southern Flame

Every sacred fire in a kingdom bends south at highsun. The avatar demands that an ancient fire temple be opened before the pressure beneath it destroys the region.

Ashes of Thay

Rival Thayan factions seek Kossuth’s sanction. He offers no allegiance, only a trial that will destroy the faction whose discipline depends on coercion.

What the Forge Reveals

A relic cannot be repaired until its false history is burned away. Each cleansing flame also destroys one true memory held by the person carrying it.

Lairs

Kossuth’s lairs separate what can endure heat from what merely looked permanent. Fire follows deliberate boundaries, metal reveals hidden flaws, and a creature that lies leaves soot on every surface it touches.

The Hundred-Mile Flame

Kossuth’s realm on the Plane of Fire surrounds a vertical furnace whose terraces become hotter as travelers ascend.

The Southern Pyre

A temple court is open to the southern sky. At highsun, every flame points toward a sealed chamber beneath the altar.

The Black Crucible

An abandoned foundry melts curses out of objects, but pours each curse into the metalwork of the next item forged.

The Ashen Cloister

Silent clerics preserve the names of those who died by flame. Speaking a name causes its last fire to burn again.

Shared References

Open a reference for its canonical description and related entries.