Multiattack. The mindwitness makes one Bite attack and one Tentacles attack, or it uses Eye Ray three times.

Bite. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 16 (4d6 + 2) piercing damage.

Tentacles. 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 (escape DC 13), and it must succeed on a DC 13 Intelligence saving throw or be restrained until this grapple ends.

Eye Ray. 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:

• 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.

• 2: Fear Ray

  The targeted creature must succeed on a DC 13 Wisdom saving throw or be 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.

• 3: Psychic Ray

  The target must succeed on a DC 13 Intelligence saving throw or take 27 (6d8) psychic damage.

• 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.

• 5: Stunning Ray

  The targeted creature must succeed on a DC 13 Constitution saving throw or be 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.

• 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 by the ray's telekinetic grip until the start of the mindwitness's next turn or until the mindwitness is incapacitated. 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.