Juiblex, the Faceless Lord

huge fiend (Demon), chaotic evil

Armor Class: 20 (Natural Armor)

Hit Points: 600 ()

Speed: 30 ft, climb 30 ft.

		Mod	Save
STR	26	+8	+8
DEX	12	+1	+9
CON	26	+8	+16

		Mod	Save
INT	20	+5	+5
WIS	20	+5	+13
CHA	18	+4	+4

Skills: Perception +13

Damage Resistances: Cold, Fire, Lightning

Immunities: Acid, Poison; Bludgeoning, Piercing, and Slashing from Nonmagical Attacks, Blinded, Charmed, Deafened, Exhaustion, Frightened, Grappled, Paralyzed, Petrified, Poisoned, Prone, Restrained, Stunned, Unconscious

Senses: Truesight 120 ft., Passive Perception 23

Languages: All, Telepathy 120 ft.

CR: 26 (90,000 XP); PB +8

Traits

Innate Spellcasting: Juiblex's spellcasting ability is Charisma (spell save DC 20, +12 to hit with spell attacks). He can innately cast the following spells, requiring no material components:
At will: ,
3/day each: , ,
1/day each: ,

Legendary Resistance (3/Day): If Juiblex fails a saving throw, he can choose to succeed instead.

Magical Resistance: Juiblex has advantage on saving throws against spells and other magical effects.

Magic Weapons: Juiblex's weapon attacks are magical.

Regeneration: Juiblex regains 20 hit points at the start of his turn if he has at least 1 hit point.

Spider Climb: Juiblex can climb difficult surfaces, including upside down on ceilings, without needing to make an ability check.

Amorphous: Juiblex can move through a space as narrow as 1 inch wide without squeezing.

Corrosive Form: Any nonmagical weapon that hits Juiblex deals no damage and is instantly destroyed. Similarly, any nonmagical armor worn by a creature hit by Juiblex's attacks is destroyed and rendered useless.

Actions

Multiattack: Juiblex makes three acid lash attacks.

Acid Lash: Melee Attack Roll: +16, reach 10ft. Hit: 21 () acid damage plus 14 () poison damage.

Corrupting Touch: Melee Attack Roll: +16, reach 5ft. Hit: 44 () necrotic damage. The target must succeed on a DC 24 Constitution saving throw or be poisoned for 1 minute. While poisoned in this way, the target takes 14 () acid damage at the start of each of its turns. The target can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success.

Engulf: Juiblex moves up to his speed without provoking Opportunity Attacks. While doing so, he can enter Large or smaller creatures' spaces. Whenever Juiblex enters a creature's space, the creature must make a DC 24 Dexterity saving throw. On a successful save, the creature can choose to be pushed 5 feet back or to the side of Juiblex. A creature that chooses not to be pushed suffers the consequences of a failed saving throw. On a failed save, the creature is engulfed, restrained, and unable to breathe. At the start of each of Juiblex's turns, each engulfed creature takes 55 () acid damage. If Juiblex moves, the engulfed creature moves with him. Juiblex can have up to three Medium creatures or one Large creature engulfed at a time. An engulfed creature can try to escape by taking an action to make a DC 24 Dexterity saving throw Strength (Athletics) check. On a success, the creature escapes and enters a space of its choice within 5 feet of Juiblex.

Eject Slime (Recharge 5-6): Juiblex spews out a corrosive slime, targeting one creature that he can see within 60 feet of him. The target must succeed on a DC 24 Dexterity saving throw or take 55 () acid damage.

Legendary Actions

Juiblex 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. Juiblex regains spent legendary actions at the start of his turn.

Attack: Juiblex makes one acid lash attack.

Corrupting Touch (Costs 2 Actions): Juiblex uses his Corrupting Touch.

Eject Slime (Costs 3 Actions): Juiblex uses his Eject Slime.

Lair Actions

On initiative count 20 (losing initiative ties), Juiblex can take a lair action to cause one of the following effects; he can't use the same effect two rounds in a row:

Summon Slimes: Juiblex causes four black puddings or ochre jellies to appear in unoccupied spaces that he chooses within the lair. They vanish after 1 hour.

Acidic Ground: Juiblex causes the ground in a 20-foot radius centered on a point he can see within 120 feet of him to become acidic. The area becomes difficult terrain, and any creature that starts its turn in the area takes 14 () acid damage.

Corrosive Mist: Juiblex releases a corrosive mist in a 30-foot radius centered on himself. Each creature in that area must succeed on a DC 24 Constitution saving throw or take 27 () acid damage and be blinded until the end of its next turn.

Regional Effects

Juiblex's lair is located in Shedaklah, the 222nd layer of the Abyss, which he shares with Zuggtmoy, the Demon Queen of Fungi. His domain is a nightmarish landscape known as the Slime Pits, a vast expanse of oozing, bubbling muck and corrosive slime. The ground is a treacherous mixture of acidic pools and quagmires, with the air thick with noxious fumes and the stench of decay.
The lair itself is a sprawling network of caverns and tunnels, all coated in a slick layer of slime. The walls and floors are alive with writhing, pulsating masses of ooze, and the very air seems to shimmer with a sickly green light. Pools of acidic slime bubble and hiss, and the ground is littered with the remains of those who have fallen victim to Juiblex's insatiable hunger.

Corrosive Environment: Within 6 miles of the lair, pools of acidic slime form, and the ground is covered in a thin layer of corrosive ooze.

Sickening Air: The air within 6 miles of the lair is filled with a foul stench. Creatures that aren't demons have disadvantage on saving throws against poison and disease while within this area.

Slime Trails: Slimes and oozes are attracted to the area within 6 miles of the lair and become more aggressive.

Notes

Juiblex is a massive, amorphous creature, a writhing mass of ooze and slime. His form constantly shifts and changes, with pseudopods and tendrils emerging and retracting at random. His body is a sickly green and black, with eyes and mouths appearing and disappearing across its surface. The air around him is filled with a noxious stench, and his very presence causes the ground to bubble and hiss with corrosive slime.
Driven by an insatiable hunger, Juiblex seeks to devour all living matter and transform it into more of himself. He is a relentless force of destruction, overwhelming his enemies with sheer brute force and corrosive attacks. Unlike other demon lords, he has no interest in alliances or schemes, preferring to act as a mindless, consuming entity. His movements are unpredictable, and his attacks are relentless, making him a formidable opponent.
Juiblex's primary goal is to spread his influence and transform the world into a vast, oozing wasteland. He seeks to corrupt and consume everything in his path, reducing all life to slime and muck. His ambitions are simple yet devastating, driven by a relentless desire to expand his domain and spread his corrosive influence.
As a mindless, malevolent force, Juiblex embodies the essence of corruption and decay. He has no interest in diplomacy or negotiation, preferring to overwhelm his enemies with brute force. His presence is a blight on the natural world, spreading corruption and decay wherever he goes. Those who encounter him must be prepared for a relentless and brutal assault, as he seeks to devour and transform everything in his path.

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Tags:acidpoisonresistanceimmunityfiendoozeevillower planeschaotictruesightclimbingperceptionlegendary actionslair actionsregional effects