Umbraflame Phoenix

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Large Monstrosity, Neutral Evil

Armor Class 18 (natural armor)

Hit Points 153 (18d8+72)

Speed 30 ft. fly 60 ft.

STR 18 (+4)

DEX 14 (+2)

CON 18 (+4)

INT 10 (+0)

WIS 12 (+1)

CHA 14 (+2)

Saving Throws Con +8, Wis +5

Skills Stealth +4, Perception +6

Damage Resistances cold

Damage Immunities fire

Condition Immunities frightened

Senses darkvision 60 ft., passive Perception 16

Languages Common, Abyssal, telepathy 120 ft.

Challenge 11 (7,200 XP) Proficiency Bonus +4

Legendary Resistance (3/Day). If the creature fails a saving throw, it can choose to succeed instead.

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

Soul Siphon (Recharge 5-6). Whenever the phoenix deals fire damage to a target, that target must succeed on a DC 16 Wisdom saving throw or have its life essence siphoned. On a failed save, the target takes 7 necrotic damage, and the phoenix regains HP equal to the necrotic damage dealt.

Ebon Resilience. The phoenix has resistance to nonmagical physical damage.

Actions

Multiattack. The phoenix makes two Beak attacks and one Tail attack.

Beak. Melee weapon Attack: +8 to hit, reach 5 ft., one target. Hit: 19 (3d8+6) fire damage.

Claw. Melee weapon Attack: +7 to hit, reach 5 ft., one target. Hit: 13 (2d8+4) fire damage.

Tail. Melee weapon Attack: +7 to hit, reach 10 ft., one target. Hit: 11 (2d6+4) fire damage. If the target is Medium or smaller, it must succeed on a DC 16 Strength saving throw or be knocked prone.

Soul Burst (Recharge 5-6). The phoenix releases a wave of void-fire in a 30-foot cone. Each creature in that area must make a DC 16 Dexterity saving throw, taking 21 (6d6) necrotic damage on a failed save, or half as much on a successful one.

Legendary Actions

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

Detect. The creature makes a Wisdom (Perception) check.

Soul Drain. The phoenix targets one creature it can see within 5 feet. The target must succeed on a DC 16 Wisdom saving throw or take 7 necrotic damage, and the phoenix regains HP equal to the necrotic damage dealt.

Wing Slice (Costs 2 Actions). The phoenix sweeps its wings; each creature within 10 feet must succeed on a DC 16 Dexterity saving throw or take 13 (2d6+6) bludgeoning damage and be knocked prone.

Environment Mountain, Desert

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Lore & Description

Appearance

A phoenix forged from black, smoldering flame, the Umbraflame Phantom blazes not with light but with a cold, suffocating darkness. Its plumage is an inky corona of embers that glow with a crimson core, and its eyes burn like coals that have seen too much—burning souls instead of flesh. This creature hunts by drawing life from the living, siphoning vitality through fiery attacks and a soul-shattering presence. Its flames sear the essence of beings it touches, leaving only ash and a lingering chill that gnaws at the heart. It seeks souls to feed its unending hunger, and it can manipulate the boundaries between life and death to torment those who stand against it.

Behavior & Origins

Born from the ashes of a ritual long forgotten, the Umbraflame Phoenix is a predator of souls. Legends say it was birthed when a war-torn world bled dry of hope, and the fire that rose from the battlefield turned black as night. This creature leaves no funeral pyre unkindled; instead, it harvests the essence of the fallen, feeding on the emotional and spiritual afterimages left behind. It is drawn to places where life runs hot—battlefields, necromancer towers, and cities under siege—where the density of life’s energy offers the richest fare. To slay such a beast, one must not only pierce its flame but sever the tether it maintains to the living, for as long as souls burn within it, the Umbraflame Phoenix endures.

Generation Info

Original prompt:
"A phoenix made of black fire that burns souls instead of flesh."

Created: Feb 2, 2026
Modified: May 22, 2026