Gargantuan Fiend (Demon), Chaotic Evil
Armor Class 22 Natural Armor
Hit Points 600 (40d20 + 240)
Speed 60 ft., Climb 60 ft.
STR
30 (+10)
DEX
20 (+5)
CON
26 (+8)
INT
22 (+6)
WIS
20 (+5)
CHA
24 (+7)
Saving Throws STR +18, DEX +13, CON +16, WIS +13, CHA +15
Skills Arcana +16, Deception +15, Stealth +15
Damage Resistances Acid, Cold, Fire, Lightning, Poison; Bludgeoning, Piercing, and Slashing from Nonmagical Attacks
Damage Immunities Necrotic; Bludgeoning, Piercing, and Slashing from Nonmagical Attacks that aren't Silvered
Condition Immunities Charmed, Frightened, Poisoned
Senses Darkvision 240 ft, Truesight 120 ft, Passive Perception 28
Languages Abyssal, Common, Infernal, Telepathy 120 ft
Challenge 28 (120,000 XP)
Proficiency Bonus +8
Traits

Legendary Resistance (5/Day): If the Arachnoloth fails a saving throw, it can choose to succeed instead.

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

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

Web Walker: The Arachnoloth ignores movement restrictions caused by webbing.

Actions

Multiattack: The Arachnoloth makes three attacks: one with its Bite and two with its Claw.

Bite: Melee Weapon Attack: +18 to hit, reach 20 ft., one target. Hit: 35 (4d10 + 10) piercing damage plus 21 (6d6) poison damage.

Claw: Melee Weapon Attack: +18 to hit, reach 25 ft., one target. Hit: 28 (3d12 + 10) slashing damage plus 21 (6d6) poison damage.

Web (Recharge 5-6): Ranged Weapon Attack: +15 to hit, range 120/240 ft., one Huge or smaller creature. Hit: The target is restrained by webbing. As an action, the restrained target can make a DC 22 Strength check, bursting the webbing on a success. The webbing can also be attacked and destroyed (AC 18; hp 50; vulnerability to fire damage; immunity to bludgeoning, poison, and psychic damage).

Bonus Actions

Web of Despair: The Arachnoloth can weave vast webs of dark energy that ensnare both body and soul, trapping its victims in a nightmarish realm of torment and despair.

Fiendish Aura: It radiates an aura of malevolent energy that saps the strength and willpower of those who draw near, leaving them vulnerable to its insidious influence.

Venomous Sting: The Arachnoloth's stinger delivers a potent venom that induces paralysis and hallucinations in its victims, rendering them helpless before its ravenous hunger.

Gatekeeper of the Abyss: The Arachnoloth serves as a guardian of the Demonweb Pits, controlling access to its dark depths and manipulating the strands of fate to serve its own twisted agenda.

 

Legendary Actions

The Arachnoloth 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 Arachnoloth regains spent legendary actions at the start of its turn.

Attack (Costs 2 Actions): The Arachnoloth makes one claw or bite attack.

Dark Energy Surge (Costs 2 Actions): The Arachnoloth releases a surge of dark energy in a 40-foot radius centered on itself. Each creature in the area must make a DC 23 Constitution saving throw, taking 56 (16d6) necrotic damage on a failed save, or half as much damage on a successful one.

Summon Demon (Costs 3 Actions): The Arachnoloth summons a demon of challenge rating 15 or lower. The summoned demon appears in an unoccupied space within 60 feet of the Arachnoloth, acts as an ally of the Arachnoloth, and remains for 1 minute, until it or the Arachnoloth dies, or until the Arachnoloth dismisses it as a bonus action.

Description

The Arachnoloth is a colossal demonic entity that towers over the landscape of the Demonweb Pits, its form a twisted amalgamation of spider and fiendish traits. Enormous in size, its body resembles that of a grotesque spider, with multiple legs extending outward from a bloated abdomen. Its chitinous exoskeleton glistens with an oily sheen, adorned with sinister runes and symbols of dark power.

Appearance: The Arachnoloth's massive form looms over the landscape like a malevolent shadow, its many eyes gleaming with an unholy light that pierces the darkness of the abyssal realm. Jagged mandibles drip with venomous saliva, and long, sinuous appendages protrude from its body, each ending in a barbed stinger capable of delivering a lethal dose of poison to its prey.

Lore: The origins of the Arachnoloth are shrouded in mystery, with some scholars speculating that it is a creation of Lolth herself, forged from the darkest depths of the Abyss to serve as her ultimate enforcer and agent of chaos. Others believe it to be a remnant of a bygone age, a relic of a time when demons and gods waged war across the planes.

Encounters: Adventurers who dare to venture into the depths of the Demonweb Pits may encounter the Arachnoloth lurking in the shadows, its massive form blocking out the light of the abyss. Those who face the creature must be prepared for a battle of epic proportions, as it possesses the raw power and cunning of a demon lord, tempered with the relentless hunger and primal instinct of a spider.

Monster Tags: DemonDemon Lord

Habitat: Underdark

MysticSovereign

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