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Image promptlarge marilith demon, cruel warrior-woman torso fused to giant coiling serpent body, six muscular arms wielding six black shadow-dripping blades, whirling defensive guard, lashing constricting tail, crimson scales, burning eyes, ash-choked Abyssal battlefield, smoldering hellfire light, poised reactive combat stance, dark fantasy, grimdark, painterly digital art, dramatic chiaroscuro lighting, muted desaturated palette with corrupted-crimson accents, weathered post-Cataclysm atmosphere, intricate high detail, cinematic composition

Marilith

Large Fiend (Demon), Chaotic Evil
CR 16SkirmisherElemental Plane
AC 16
Initiative +10 (20)
HP 220 (21d10 + 105)
Speed 40 ft., Climb 40 ft.
STR
18
+4
save +9
DEX
20
+5
save +5
CON
20
+5
save +10
INT
18
+4
save +4
WIS
16
+3
save +8
CHA
20
+5
save +10
Skills Perception +8
Resistances Cold, Fire, Lightning
Immunities Poison; Poisoned
Senses Truesight 120 ft.; Passive Perception 18
Languages Abyssal; telepathy 120 ft.

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: Hit: +10, reach 5 ft. 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.

Bonus Actions

Teleport (Recharge 5–6). The marilith teleports up to 120 feet to an unoccupied space it can see.

Reactions

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