Tentacled Minddevourer

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Medium Aberration, Chaotic Evil

Armor Class 16 (natural armor)

Hit Points 84 (12d8+24)

Speed 30 ft. climb 30 ft.

STR 14 (+2)

DEX 16 (+3)

CON 15 (+2)

INT 18 (+4)

WIS 12 (+1)

CHA 10 (+0)

Saving Throws Int +7, Wis +4

Skills Arcana +6, Stealth +7

Damage Resistances psychic

Condition Immunities frightened

Senses darkvision 60 ft., passive Perception 12

Languages Deep Speech, telepathy, telepathy 120 ft.

Challenge 6 (2,300 XP) Proficiency Bonus +3

Legendary Resistance (3/Day). If the creature fails a saving throw, it can choose to succeed instead.

Mind Blast. The creature can use its action to unleash a wave of psychic energy. Each creature within 30 feet must make a DC 15 Intelligence saving throw, taking 21 (6d6) psychic damage on a failed save, or half as much on a successful one.

Innate Spellcasting. The creature's innate spellcasting ability is Intelligence (spell save DC 15). It can innately cast the following spells, requiring no material components: at will: *detect thoughts*, *minor illusion*; 3/day each: *confusion*, *fear*; 1/day each: *dominate person*.

Actions

Multiattack. The Tentacled Minddevourer makes two tentacle attacks.

Tentacle. Melee weapon Attack: +7 to hit, reach 10 ft., one target. Hit: 13 (2d8+4) bludgeoning damage. If the target is a creature and the attack hits, the target must succeed on a DC 15 Intelligence saving throw or be grappled (escape DC 15). While grappled in this way, the target is also incapacitated.

Devour Thoughts. The Tentacled Minddevourer can consume the mind of a creature it has grappled. The target must make a DC 15 Intelligence saving throw. On a failed save, the target takes 28 (8d6) psychic damage, and the creature regains hit points equal to half the damage dealt. On a successful save, the target takes half damage and the creature does not regain hit points.

Legendary Actions

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

Psychic Dread. The creature forces one creature it can see within 60 feet to make a DC 15 Wisdom saving throw. On a failed save, the creature becomes frightened of the Tentacled Minddevourer until the end of its next turn.

Tentacle Strike. The creature makes one tentacle attack.

Psychic Feedback (Costs 2 Actions). The creature unleashes psychic energy in a 15-foot cone. Each creature in that area must make a DC 15 Intelligence saving throw, taking 14 (4d6) psychic damage on a failed save, or half as much on a successful one.

Environment Forest, Underdark

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Lore & Description

Appearance

The Tentacled Minddevourer is a ghastly creature with an amorphous body covered in slick, iridescent skin that shifts colors as it moves. It has numerous long, sinewy tentacles that writhe and grasp with an unsettling grace. Its central mass is bulbous, housing a disturbing array of eyes that blink at strange intervals, and a gaping maw filled with sharp, jagged teeth.

Behavior & Origins

Hailing from the depths of the Far Realm, the Tentacled Minddevourer feasts on thoughts and memories, preying on both the weak-minded and the powerful alike. It often lurks in the shadows of dark caverns or abandoned ruins, waiting for unwary travelers to cross its path. Driven by a hunger for knowledge and power, it seeks to learn the secrets of those it consumes, often leaving victims as hollow shells devoid of memory and willpower.

Monster Image

Generation Info

Original prompt:
"A mind-devouring creature from the Far Realm with tentacles"

Created: Jan 28, 2026
Modified: May 19, 2026