Intellect devourer

Intellect devourer
Depiction of an intellect devourer, by Conceptopolis from D&D: Monster Manual, page 191.
Biological Information
Type	Aberration
Alignment	Lawful evil
Vision	Blindsight 60 ft. (blind beyond this radius)
Movement	40 ft.
Abilities	Detect Sentience Devour Intellect Body Thief
Diet	Intelligence of sentient creatures
Physical Characteristics
Size	Tiny
Distinctions	Clawed legs
Sociocultural Information
Planes	Material Plane (Exandria)
Locations	Yug'Voril
Environment	Underdark
Language	Understands Deep Speech but can't speak Telepathy 60 ft.

Intellect devourers are tiny aberrations associated with the mind flayers (illithids); as the name implies, their attacks target the mind.

Creature information

Illithids subsist on humanoid brains for sustenance, using the enzymes and psychic energies to fuel their own bodies. However, they occasionally will save a brain to be turned into intellect devourers, which are used to hunt and obtain more brains.

Intellect devourers resemble brains with four clawed, bestial legs. They reside deep in the Underdark together with the mind flayers. They do not have an instinct for self-preservation; illithids create them for a pragmatic purpose.

Abilities

While intellect devourers are physically weak, they can easily cripple any individual of low intelligence.

• Devour Intellect - On a failed Intelligence saving throw, the creature takes 2d10 psychic damage; then, roll 3d6, and if the result is equal to or greater than the target's Intelligence score, the creature's Intelligence score is reduced to zero and it is stunned until it regains at least one point of Intelligence.
• Claw

History

During Vox Machina's adventures in the Underdark, an intellect devourer put Grog into a catatonic state with one attack due to the barbarian's already low intelligence score of 6.

Intellect devourers also accompanied the illithid party that Vox Machina was forced to fight in the elder brain temple in Yug'Voril.

References

Art: