Obyzouth

Large fiend (demon), chaotic evil

Armor Class 19 (natural armor)

Hit Points 253 (22d10 + 132)

Speed 0 ft., fly 40 ft. (hover), swim 40 ft.

STR 10 (+0) · DEX 22 (+6) · CON 22 (+6) · INT 18 (+4) · WIS 20 (+5) · CHA 21 (+5)

Saving Throws Dex +11, Con +11, Wis +10, Cha +10

Skills Deception +10, Insight +10, Perception +10, Stealth +11

Damage Resistances cold, fire, lightning; bludgeoning, piercing, and slashing from non-magical attacks

Damage Immunities poison

Condition Immunities charmed, frightened, poisoned

Senses darkvision 120 ft., passive Perception 20

Languages Abyssal, Common, Infernal; telepathy 120 ft.

Challenge 15 (13,000 XP)

Traits

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

Magic Weapons. Obyzouth’s weapon attacks are magical.

Shadow Veil. Unless she is in bright light or has taken radiant damage since the end of her last turn, Obyzouth is invisible and her space is heavily obscured. The veil ends until the end of her next turn if she takes radiant damage.

Name Without End. Obyzouth has advantage on saving throws against any effect that would banish, dismiss, or otherwise forcibly send her to another plane of existence.

Life-Draining Aura. Any creature that starts its turn within 30 feet of Obyzouth must make a DC 18 Constitution saving throw, taking 14 (4d6) necrotic damage on a failed save, or half as much damage on a successful one. On a failed save, the creature also gains 1 level of exhaustion. While a creature is suffering exhaustion caused by this aura, its hit-point maximum is reduced by an amount equal to the necrotic damage it takes from the aura. The reduction lasts until the exhaustion level is removed.

Legendary Resistance (3/Day). If Obyzouth fails a saving throw, she can choose to succeed instead.

Holy Wards. While within 30 feet of a creature openly bearing a holy symbol or amulet dedicated to the archangel Raphael (or a similar deity), Obyzouth has disadvantage on attack rolls and cannot benefit from her Shadow Veil.

Actions

Multiattack. Obyzouth makes two attacks: one Hair Lash and one Bite.

Hair Lash. Melee Weapon Attack: +11 to hit, reach 15 ft., one target. Hit: 21 (2d8 + 6 plus 2d6) slashing and necrotic damage.

Bite. Melee Weapon Attack: +11 to hit, reach 5 ft., one target. Hit: 26 (2d10 + 6 plus 3d6) piercing and necrotic damage, and the target’s hit-point maximum is reduced by the necrotic damage dealt. The reduction lasts until the target finishes a long rest. The target dies if this effect reduces its hit-point maximum to 0. Obyzouth regains hit points equal to the necrotic damage dealt.

Grief-Stricken Keening (Recharge 5–6). Obyzouth emits a soul-rending wail. Each creature of her choice within 60 feet that can hear her must make a DC 18 Constitution saving throw, taking 36 (8d8) necrotic damage and gaining 2 levels of exhaustion on a failed save, or half as much damage and 1 level of exhaustion on a successful one.

Bonus Actions

Feed on Weariness. Obyzouth targets one creature within 30 feet that is suffering at least 1 level of exhaustion. The target takes 10 (3d6) necrotic damage, and Obyzouth regains hit points equal to the damage dealt.

Reactions

Shadow Slip. When a creature Obyzouth can see hits her with an attack, she can halve the damage of that attack and immediately teleport up to 30 feet to an unoccupied space she can see that is in dim light or darkness.

Legendary Actions

Obyzouth can take 2 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. Obyzouth regains spent legendary actions at the start of her turn.

Hair Lash. Obyzouth makes one Hair Lash attack.

Shadow Glide. Obyzouth moves up to half her flying speed without provoking opportunity attacks.

Lore

An ever-vigilant demoness who manifests as a spectral head with serpentine hair, relentlessly stalking pregnant women and newborns.

The demon’s name can be traced back to the Greek word “abyssos”—“abyss,” which in turn was borrowed from the Akkadian “Apsu” and the Sumerian “Abzu,” the primordial freshwater ocean beneath the earth from which all life and the very fabric of the cosmos came forth.

In the magic-religious practice of antiquity it was believed that knowing a being’s true name gave one power over it. Obizu, being an ancient spirit, is acutely aware of this metaphysical vulnerability, so she possesses “tens of thousands of names and forms,” making her banishment an extremely difficult task.

From Demonic Bestiary 5E, p. 76 · Fern Flower Press