# [Mindwitness](Rules\Source\bestiary\aberration/mindwitness-mpmm.md)
*Source: Mordenkainen Presents: Monsters of the Multiverse p. 181*
If a beholder is [stunned](/Rules/Source/conditions.md#Stunned) and brought to the brine pool of an elder brain, the beholder can be converted into a mindwitness. This alters some of its eye rays and transforms four of its eyestalks into tentacles similar to a mind flayer's. The mindwitness is psychically imprinted with devotion to the elder brain and submission to illithid commands.
A mindwitness's primary function is to improve telepathic communication in a mind flayer colony. A creature in telepathic communication with a mindwitness can converse through it to as many as seven other creatures the mindwitness can see, rapidly disseminating commands and other information.
If separated from its illithid masters, a mindwitness seeks out other telepathic creatures to tell it what to do. Mindwitnesses have been known to ally with [flumphs](/Rules/Source/bestiary/aberration/flumph-xmm.md) and planar beings such as demons, shifting their worldview and alignment to match those of their new masters.
```statblock
"name": "Mindwitness (MPMM)"
"size": "Large"
"type": "aberration"
"alignment": "Typically Lawful Neutral"
"ac": !!int "15"
"ac_class": "natural armor"
"hp": !!int "75"
"hit_dice": "10d10 + 20"
"modifier": !!int "2"
"stats":
- !!int "10"
- !!int "14"
- !!int "14"
- !!int "15"
- !!int "15"
- !!int "10"
"speed": "0 ft., fly 20 ft. (hover)"
"saves":
- "intelligence": !!int "5"
- "wisdom": !!int "5"
"skillsaves":
- "name": "[Perception](/Rules/Source/skills.md#Perception)"
"desc": "+8"
"condition_immunities": "[prone](/Rules/Source/conditions.md#Prone)"
"senses": "[darkvision](/Rules/Source/senses.md#Darkvision) 120 ft., passive Perception\
\ 18"
"languages": "Deep Speech, Undercommon, telepathy 600 ft."
"cr": "5"
"traits":
- "desc": "When the mindwitness receives a telepathic message, it can telepathically\
\ share that message with up to seven other creatures within 600 feet of it\
\ that it can see."
"name": "Telepathic Hub"
"actions":
- "desc": "The mindwitness makes one Bite attack and one Tentacles attack, or it\
\ uses Eye Ray three times."
"name": "Multiattack"
- "desc": "*Melee Weapon Attack:* +5 to hit, reach 5 ft., one target. *Hit:* 16\
\ (4d6 + 2) piercing damage."
"name": "Bite"
- "desc": "*Melee Weapon Attack:* +5 to hit, reach 10 ft., one creature. *Hit:*\
\ 20 (4d8 + 2) psychic damage. If the target is Large or smaller, it is [grappled](/Rules/Source/conditions.md#Grappled)\
\ (escape DC 13), and it must succeed on a DC 13 Intelligence saving throw or\
\ be [restrained](/Rules/Source/conditions.md#Restrained) until this grapple\
\ ends."
"name": "Tentacles"
- "desc": "The mindwitness shoots one magical eye ray at random (roll a d6, and\
\ reroll if the ray has already been used this turn), choosing one target it\
\ can see within 120 feet of it:\n\n- **1 Aversion Ray.** The targeted creature\
\ must make a DC 13 Charisma saving throw. On a failed save, the target has\
\ disadvantage on attack rolls for 1 minute. The target can repeat the saving\
\ throw at the end of each of its turns, ending the effect on itself on a success.\
\ \n- **2 Fear Ray.** The targeted creature must succeed on a DC 13 Wisdom\
\ saving throw or be [frightened](/Rules/Source/conditions.md#Frightened) for\
\ 1 minute. The target can repeat the saving throw at the end of each of its\
\ turns, ending the effect on itself on a success. \n- **3 Psychic Ray.** The\
\ target must succeed on a DC 13 Intelligence saving throw or take 27 (6d8)\
\ psychic damage. \n- **4 Slowing Ray.** The targeted creature must make a\
\ DC 13 Dexterity saving throw. On a failed save, the target's speed is halved\
\ for 1 minute. In addition, the creature can't take reactions, and it can take\
\ either an action or a bonus action on its turn but not both. The creature\
\ can repeat the saving throw at the end of each of its turns, ending the effect\
\ on itself on a success. \n- **5 Stunning Ray.** The targeted creature must\
\ succeed on a DC 13 Constitution saving throw or be [stunned](/Rules/Source/conditions.md#Stunned)\
\ for 1 minute. The target can repeat the saving throw at the end of each of\
\ its turns, ending the effect on itself on a success. \n- **6 Telekinetic\
\ Ray.** If the target is a creature, it must make a DC 13 Strength saving throw.\
\ On a failed save, the mindwitness moves it up to 30 feet in any direction,\
\ and it is [restrained](/Rules/Source/conditions.md#Restrained) by the ray's\
\ telekinetic grip until the start of the mindwitness's next turn or until the\
\ mindwitness is [incapacitated](/Rules/Source/conditions.md#Incapacitated).\
\ \n\n If the target is an object weighing 300 pounds or less that isn't\
\ being worn or carried, it is telekinetically moved up to 30 feet in any direction.\
\ The mindwitness can also exert fine control on objects with this ray, such\
\ as manipulating a simple tool or opening a door or a container. "
"name": "Eye Ray"
"source":
- "MPMM"
"image": "/Rules/Source/bestiary/aberration/token/mindwitness-mpmm.webp"
```
^statblock
## Environment
underdark