Intellect Devourer Species in Other Realms | World Anvil

Intellect Devourer

An intellect devourer resembles a walking brain protected by a crusty covering and set on bestial clawed legs. This foul aberration feeds on the intelligence of sentient creatures, taking over a victim's body on behalf of its mind flayer masters.   Illithid Creations Mind flayers breed intellect devourers to serve as roaming hunters of the Underdark, creating an intellect devourer by taking the brain of a thrall and subjecting it to a horrible ritual. As it sprouts legs, the brain becomes an intelligent predator as twisted and evil as its masters.   Deadly Puppet Masters An intellect devourer consumes a creature's mind and memories, then turns the host body into a puppet under its control. An intellect devourer typically uses its puppet host to lure others into the domain of the mind flayers to be enthralled or consumed.  

Intellect Devourer

An intellect devourer resembles a walking brain protected by a crusty covering and set on bestial clawed legs. This foul aberration feeds on the intelligence of sentient creatures, taking over a victim's body on behalf of its mind flayer masters.


Armor Class12
Hit Points 6d4+6
Speed40ft.
Strength6 (- 2)
Dexterity14 (+2)
Constitution13 (+1)
Intelligence12 (+1)
Wisdom11 (+0)
Charisma10 (+0)
SkillsPerception d20+2 Stealth d20+4
Damage ResistancesBludgeoningPiercingSlashing from nonmagical weapons
Condition ImmunitiesBlinded
SensesBlindsight 60ft. (blind beyond this radius)Passive Perception 12
LanguagesUnderstands Deep Speech but can't speakTelepathy 60ft.
Challenge2 (450 XP)
SpecialDetect SentienceThe intellect devourer can sense the presenceand location of any creature within 300 feet
of it that has an Intelligence of 3 or higher,regardless of interposing barriers,unless the creature is protected by a mind blank spell
Action 1MultiattackThe intellect devourer makes one attack with its clawsand uses Devour Intellect
Action 2ClawsMelee Weapon Attack d20+4 to hit
Reach 5 ft., one targetHit 2d4+2 slashing damage
Action 3Devour IntellectThe intellect devourer targets one creature it can seewithin 10 feet of it that has a brain.
The target must succeed on a DC 12 Intelligence saving throwagainst this magic or take 2d10 psychic damage.Also on a failure, roll 3d6 :If the total equals or exceeds the target's Intelligence score,
that score is reduced to 0.The target is stunned until it regains atleast one point of Intelligence
Action 4Body ThiefThe intellect devourer initiates an Intelligence contest withan incapacitated humanoid within 5 feet of it.
If it wins the contest, the intellect devourermagically consumes the target's brain,teleports into the target's skull,and takes control of the target's body.
While inside a creature, the intellect devourerhas total cover against attacks and other effectsoriginating outside its host.The intellect devourer retains its Intelligence,
Wisdom, and Charisma scores,as well as its understanding of Deep Speech,its telepathy, and its traits.It otherwise adopts the target's statistics.
It knows everything the creature knew,including spells and languages.If the host body drops to 0 hit points,the intellect devourer must leave it.
A protection from evil and good spell cast onthe body drives the intellect devourer out.The intellect devourer is alsoforced out if the target regains its devoured brain by means of a wish.
By spending 5 feet of its movement,the intellect devourer can voluntarily leave the body,teleporting to the nearest unoccupied spacewithin 5 feet of it. The body then dies,
unless its brain is restored within 1 round

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