Limited Telepathy. The cerebrilith can magically transmit simple messages and images to any creature within 120 feet of it that can understand a language. This form of telepathy doesn't allow the receiving creature to telepathically respond.
Innate Spellcasting (Psionics). The cerebrilith innate spellcasting ability is Intelligence (spell save DC 15). It can innately cast the following spells, requiring no components:
- At will: detect good and evil, detect thoughts, dissonant whispers, charm person, misty step
- 3/day: confusion, synaptic static, telekinesis, wall of force
- 1/day: dominate monster
Multiattack. The Cerebrilith makes three attacks: one with its bite and two with its claws.
Claw. Melee Weapon Attack: +10 to hit, reach 10 ft., one target. Hit: 10 (1d8 + 6) slashing damage plus 7 (2d6) psychic damage.
Bite. Melee Weapon Attack: +10 to hit, reach 5 ft., one target. Hit: 15 (2d8 + 6) piercing damage. If the target is a creature, it must succeed on a DC 14 Constitution saving throw, taking 14 (4d6) poison damage on a failed save, or half as much damage on a successful one.
Summon Demon (1/Day). Has a 50 percent chance of summoning 2d4 dretches, and a 5 percent chance of summoning another cerebrilith.
Mind Thrust (Recharge 5-6). The cerebrilith magically emits psychic energy in a 60-foot cone. Each creature in that area must succeed on a DC 15 Intelligence saving throw or take 36 (8d8) psychic damage and be stunned for 1 minute. A creature can repeat the saving throw at the end of each of its turns , ending the effect on itself on a success.
Description
A Cerebrilith appeared as a giant ogre-like humanoid creature, standing around 12 feet high when upright in battle. However, it normally knuckle-walked on all fours due to its hunched back. The body was relatively gangly, with skin turned slick and slimy as if it continually leaked some fluid. Its skull was bulging and elongated, sweeping back and merging into its hunched back, with a bony brow and protruding fanged jaw with long, thin tongue. Its most obvious feature was a hideously swollen and exposed brain, shielded beneath a lattice of its spinal bones.
Hunger for the Mind. Cerebriliths spent their time cultivating their mental powers, usually acting alone or in groups of up to four, by hunting and killing mortal prey. They loved to kill intelligent beings and extract their brains, which they would examine in an effort to gain fresh insights into the powers of the mind. They only joined demon armies in specialist roles to meet specific purposes, such as to a slay a mortal psionicist or psionic creature.
Psionic Combatants. These psionic demons opened battle with an assault of telepathic powers. When in melee range, they fought with teeth and claws with psionically enhanced force. Cerebriliths possessed all the standard magical powers of a tanar'ri demon, and complemented these with an array of psionic powers of the telepathic discipline, causing mental damage, mind-reading and domination. It could communicate via telepathy.A cerebrilith could summon another of its kind or a number of dretches.