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Monster · SRD 5.2.1

Marilith

Large fiend, chaotic evil

Armor Class
16
Hit Points
220 (21d10)
Speed
40 ft., climb 40 ft.
STR
18 (+4)
DEX
20 (+5)
CON
20 (+5)
INT
18 (+4)
WIS
16 (+3)
CHA
20 (+5)
Senses
truesight 120 ft., passive perception 18
Languages
Abyssal, telepathy 120 ft.
Challenge
16 (15,000 XP)

Traits

Demonic Restoration. If the marilith dies outside the Abyss, its body dissolves into ichor, and it gains a new body instantly, reviving with all its Hit Points somewhere in the Abyss.

Magic Resistance. The marilith has Advantage on saving throws against spells and other magical effects.

Reactive. The marilith can take one Reaction on every turn of combat.

Actions

Multiattack. The marilith makes six Pact Blade attacks and uses Constrict.

Pact Blade. Melee Attack Roll: +10, reach 5 ft. Hit: 10 (1d10 + 5) Slashing damage plus 7 (2d6) Necrotic damage.

Constrict. Strength Saving Throw: DC 17, one Medium or smaller creature the marilith can see within 5 feet. Failure: 15 (2d10 + 4) Bludgeoning damage. The target has the Grappled condition (escape DC 14), and it has the Restrained condition until the grapple ends.

Large fiend, chaotic evil

Special Abilities

Demonic Restoration

If the marilith dies outside the Abyss, its body dissolves into ichor, and it gains a new body instantly, reviving with all its Hit Points somewhere in the Abyss.

Magic Resistance

The marilith has Advantage on saving throws against spells and other magical effects.

Reactive

The marilith can take one Reaction on every turn of combat.

Actions

Multiattack

The marilith makes six Pact Blade attacks and uses Constrict.

Pact Blade

Melee Attack Roll: +10, reach 5 ft. Hit: 10 (1d10 + 5) Slashing damage plus 7 (2d6) Necrotic damage.

Constrict

Strength Saving Throw: DC 17, one Medium or smaller creature the marilith can see within 5 feet. Failure: 15 (2d10 + 4) Bludgeoning damage. The target has the Grappled condition (escape DC 14), and it has the Restrained condition until the grapple ends.

Reactions

Parry

Trigger: The marilith is hit by a melee attack roll while holding a weapon. Response: The marilith adds 5 to its AC against that attack, possibly causing it to miss.

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This work includes material from the System Reference Document 5.2.1 (“SRD 5.2.1”) by Wizards of the Coast LLC, available at https://www.dndbeyond.com/srd. The SRD 5.2.1 is licensed under the Creative Commons Attribution 4.0 International License, available at https://creativecommons.org/licenses/by/4.0/legalcode.

Reformatted and reorganized for presentation on PostRoll; text unmodified.

Licensed under Creative Commons Attribution 4.0 International.

srd-5.2.1 · Version 1.0.0 · Updated Jul 9, 2026