designed instead are brain

Elder Brain

Monsters Mordenkainen Presents: Monsters of the Multiverse

this manner. Legendary Resistance (3/Day). If the elder brain fails a saving throw, it can choose to succeed instead. Magic Resistance. The elder brain has advantage on saving throws against spells

Creature Sense. The elder brain is aware of the presence of creatures within 5 miles of it that have an Intelligence score of 4 or higher. It knows the distance and direction to each creature, as

Ulitharid

Monsters Mordenkainen Presents: Monsters of the Multiverse

the colony. This process doesn’t work on the brain of an ulitharid that dies a natural death, as such brains are too decrepit to be used. Instead, each ulitharid carries a psionically enhanced

in this manner. Magic Resistance. The ulitharid has advantage on saving throws against spells and other magical effects. Psionic Hub. If an elder brain establishes a psychic link with the ulitharid

Ruxithid the Chosen

Monsters Phandelver and Below: The Shattered Obelisk

Legendary Resistance (2/Day). When Ruxithid fails a saving throw, he can choose to succeed instead. Mental Fortitude. Ruxithid has advantage on saving throws against the charmed and frightened

mind flayers, who he believes are gods.PsychicBrain Tendrils (Recharge 5–6);{"diceNotation":"1d6", "rollType":"recharge", "rollAction":"Brain Tendrils"}. Ruxithid unleashes a flurry of crystalline

Mind Flayer Clairvoyant

Monsters Phandelver and Below: The Shattered Obelisk

starless depths and been subsequently rewarded with extraordinary powers. Instead of heeding an elder brain, a mind flayer clairvoyant listens to the whispers and whims of the voices of the Far Realm. In

Legendary Resistance (3/Day). If the mind flayer fails a saving throw, it can choose to succeed instead. Magic Resistance. The mind flayer has advantage on saving throws against spells and other

Elder Brain Dragon

Monsters Fizban's Treasury of Dragons

Legendary Resistance (4/Day). If the dragon fails a saving throw, it can choose to succeed instead. Siege Monster. The dragon deals double damage to objects and structures. Unusual Nature. The

available to those who must contend with a mind flayer colony is the limit of its reach, which spreads only as far as the influence of the colony’s elder brain. But this small solace withers

Encephalon Cluster

Monsters Phandelver and Below: The Shattered Obelisk

Legendary Resistance (3/Day). If the cluster fails a saving throw, it can choose to succeed instead. Magic Resistance. The cluster has advantage on saving throws against spells and other magical

the attacker, it then makes one Slam attack against that attacker.An encephalon cluster pays no heed to an elder brain or its mind flayer progenitors. This grotesque creature shambles through dark

Headless Iron Golem

Monsters Icewind Dale: Rime of the Frostmaiden

Fire Absorption. Whenever the golem is subjected to fire damage, it takes no damage and instead regains a number of hit points equal to the fire damage dealt. Immutable Form. The golem is immune to

golems bear weaknesses inherent in their materials or the power of the elemental spirit bound within them, iron golems were designed to be nearly invulnerable. Their iron bodies imprison the spirits

Refraction of Ilvaash

Monsters Phandelver and Below: The Shattered Obelisk

":"Incorporeal Movement", "rollDamageType":"force"} force damage if it ends its turn inside an object. Legendary Resistance (5/Day). If the refraction fails a saving throw, it can choose to succeed instead

-Brain. When Ilsensine left the Far Realm to establish a divine domain elsewhere, pieces of the God-Brain sloughed away and awoke to sentience. This is Ilvaash, the Dissonant Psyche. The refraction of

Vampiric Mind Flayer

Monsters Van Richten’s Guide to Ravenloft

psychic damage dies.When the mind flayers of Bluetspur (see chapter 3) could find no cure for their overlord’s affliction, their degenerating elder brain turned to radical methods to stave off

the cerebral fluids from sapient minds. After doing so, they return to the Elder Brain of Bluetspur, which liquefies them into its pool and releases their stolen essences amid a hormone brine. This

Encephalon Gemmule

Monsters Phandelver and Below: The Shattered Obelisk

Far Realm, the eggs within an encephalon cluster no longer hatch into illithid tadpoles. Instead, when one of an encephalon cluster’s eggs reaches maturity, it is ejected from the mass as an

chance to mutate into what is known as an encephalon cluster—a ravenous, slimy, psionic, brain-shaped mass that spawns horrors called encephalon gemmules.PsychicLeech. The gemmule targets one

Dyrrn

Monsters Eberron: Rising from the Last War

instead. Magic Resistance. Dyrrn has advantage on saving throws against spells and other magical effects. Regeneration. Dyrrn regains 20 hit points at the start of its turn. If Dyrrn takes radiant

teleport up to 30 feet to an unoccupied space it can see.Multiattack. Dyrrn makes one Tentacle Whip attack and uses its Corruption once. Dyrrn can replace its Tentacle Whip attack with Extract Brain if it

Alhoon

Monsters Mordenkainen Presents: Monsters of the Multiverse

pursue arcane magic are exiled as deviants, and for them no everlasting communion with an elder brain is possible. The road to lichdom offers an alternative way to escape the permanency of death, but

such forbidden texts can be hidden from other illithids and even from an elder brain. Yet eventually, mind flayer arcanist;mind flayer arcanists determined to pursue wizardry must flee the colony for

Asteroid Spider

Monsters Monstrous Compendium Vol. 1: Spelljammer Creatures

. Legendary Resistance (3/Day). If the spider fails a saving throw, it can choose to succeed instead. Unusual Nature. The spider doesn’t require air.Multiattack. The spider makes two Web Strand attacks

living brain functions like a spelljamming helm, allowing the spider to travel through Wildspace without a ship. It often haunts asteroid belts, lurking among normal asteroids until a spelljamming ship

Zuggtmoy

Monsters Mordenkainen Presents: Monsters of the Multiverse

Legendary Resistance (3/Day). If Zuggtmoy fails a saving throw, she can choose to succeed instead. Magic Resistance. Zuggtmoy has advantage on saving throws against spells and other magical

within the lair. They vanish after 1 hour. Unleash Spores. Zuggtmoy uses either her Infestation Spores or her Mind Control Spores, centered on a mushroom or other fungus within her lair, instead of on

Adult Emerald Dragon

Monsters Fizban's Treasury of Dragons

Legendary Resistance (3/Day). If the dragon fails a saving throw, it can choose to succeed instead. Shift Perception (1/Day). The dragon can cast hallucinatory terrain, requiring no spell components

, or crumbling ruins designed to disorient intruders. Circuitous routes within the lair provide the dragon with numerous ways to evade pursuit, while strategically designed choke points allow them to

Ancient Emerald Dragon

Monsters Fizban's Treasury of Dragons

Legendary Resistance (3/Day). If the dragon fails a saving throw, it can choose to succeed instead. Tunneler. The dragon can burrow through solid rock at half its burrowing speed and can leave a 20

’s lair is a maze of twisting tunnels, interconnected caverns, or crumbling ruins designed to disorient intruders. Circuitous routes within the lair provide the dragon with numerous ways to evade

Elder Brain Legacy

Monsters Volo's Guide to Monsters

: At will: detect thoughts, levitate 1/day each: dominate monster, plane shift (self only) Legendary Resistance (3/Day). If the elder brain fails a saving throw, it can choose to succeed instead

Creature Sense. The elder brain is aware of the presence of creatures within 5 miles of it that have an Intelligence score of 4 or higher. It knows the distance and direction to each creature, as

Blue Slaad (control gem variant) Legacy

Monsters Monster Manual (2014)

point. Control Gem. Implanted in the slaad's brain is a magic control gem. The slaad must obey whoever possesses the gem and is immune to being charmed while so controlled. Certain spells can be used to

acquire the gem. If the slaad fails its saving throw against imprisonment, the spell can transfer the gem to the spellcaster's open hand, instead of imprisoning the slaad. A wish spell, if cast in

Mind Flayer Lich (Illithilich) Legacy

Monsters Volo's Guide to Monsters

Legendary Resistance (3/Day). If the lich fails a saving throw, it can choose to succeed instead. Rejuvenation. If it has a phylactery, a destroyed lich gains a new body in 1d10;{"diceNotation

ends. Extract Brain. Melee Weapon Attack: +12;{"diceNotation":"1d20+12","rollType":"to hit","rollAction":"Extract Brain"} to hit, reach 5 ft., one incapacitated humanoid grappled by the lich. Hit: 55

Red Slaad (control gem variant) Legacy

Monsters Monster Manual (2014)

point. Control Gem. Implanted in the slaad's brain is a magic control gem. The slaad must obey whoever possesses the gem and is immune to being charmed while so controlled. Certain spells can be used to

acquire the gem. If the slaad fails its saving throw against imprisonment, the spell can transfer the gem to the spellcaster's open hand, instead of imprisoning the slaad. A wish spell, if cast in

Gray Slaad (control gem variant) Legacy

Monsters Monster Manual (2014)

. Regeneration. The slaad regains 10 hit points at the start of its turn if it has at least 1 hit point. Control Gem. Implanted in the slaad’s brain is a magic control gem. The slaad must obey

transfer the gem to the spellcaster’s open hand, instead of imprisoning the slaad. A wish spell, if cast in the slaad’s presence, can be worded to acquire the gem. A greater restoration spell

Death Slaad (control gem variant) Legacy

Monsters Monster Manual (2014)

Gem. Implanted in the slaad's brain is a magic control gem. The slaad must obey whoever possesses the gem and is immune to being charmed while so controlled. Certain spells can be used to acquire the

gem. If the slaad fails its saving throw against imprisonment, the spell can transfer the gem to the spellcaster's open hand, instead of imprisoning the slaad. A wish spell, if cast in the slaad's

Green Slaad (control gem variant) Legacy

Monsters Monster Manual (2014)

slaad's brain is a magic control gem. The slaad must obey whoever possesses the gem and is immune to being charmed while so controlled. Certain spells can be used to acquire the gem. If the slaad

fails its saving throw against imprisonment, the spell can transfer the gem to the spellcaster's open hand, instead of imprisoning the slaad. A wish spell, if cast in the slaad's presence, can be worded

Domestic Wonder

monsters

. On a successful save, the wonder drops to 1 Hit Point instead. Wind-Up Operation. The wonder has the Unconscious condition until another creature winds it with the wonder’s unique key for 1

it is wound again.This bipedal wonder is designed to assist with household duties. It vaguely resembles whatever species its creator used as inspiration. The wonder is an ally to you and your allies

Domestic Wonder

monsters

Hit. On a suc- cessful save, the wonder drops to 1 Hit Point instead. Wind-Up Operation. The wonder has the Unconscious condition until another creature winds it with the won- der’s unique

condition until it is wound again.Domestic Wonder (Uncommon). This bipedal wonder is designed to assist with household duties. It vaguely resembles whatever species its creator used as inspiration

Xill

Monsters Mordenkainen's Fiendish Folio Volume 1

damage.Deep within the Ethereal Plane are the demiplanes, miniatures worlds built by powerful archmages and other mighty entities to serve as a private domain. Each demiplane is a designed realm

, built for a specific purpose. Some are fortresses, designed to keep wanderers from the material world away. Others are far more sinister, dark realms where evil dreams take root and become ghastly

Claymore

Equipment

feat. This weapon has the following Mastery Property. To use this property, you must have a feature that lets you use it. Brutal. This weapon is designed for maximum damage. Brutal weapons score

Critical Hits on a natural roll of 19 or 20. If your Critical Range is already increased, instead increase it by 1 point (such as from 19-20 to 18-20). When you score a Critical Hit with a Brutal weapon against a creature, the weapon deals one additional die of damage.

Wrath Axe

Equipment

feat. This weapon has the following Mastery Property. To use this property, you must have a feature that lets you use it. Brutal. This weapon is designed for maximum damage. Brutal weapons score

Critical Hits on a natural roll of 19 or 20. If your Critical Range is already increased, instead increase it by 1 point (such as from 19-20 to 18-20). When you score a Critical Hit with a Brutal weapon against a creature, the weapon deals one additional die of damage.

Fighting Chain, Brutal

Equipment

Weapon Proficiency feat. This weapon has the following Mastery Property. To use this property, you must have a feature that lets you use it.Brutal. This weapon is designed for maximum damage. Brutal

weapons score Critical Hits on a natural roll of 19 or 20. If your Critical Range is already increased, instead increase it by 1 point (such as from 19-20 to 18-20). When you score a Critical Hit with a Brutal weapon against a creature, the weapon deals one additional die of damage.

Wrath Maul

Equipment

Proficiency feat. This weapon has the following Mastery Property. To use this property, you must have a feature that lets you use it. Brutal. This weapon is designed for maximum damage. Brutal weapons score

Critical Hits on a natural roll of 19 or 20. If your Critical Range is already increased, instead increase it by 1 point (such as from 19-20 to 18-20). When you score a Critical Hit with a Brutal weapon against a creature, the weapon deals one additional die of damage.

Mechanical Wonder

magic-items

designed to assist with household duties. It vaguely resembles whatever species its creator used as inspiration. An activated domestic wonderuses the Domestic Wonder stat block. The wonder is an ally to you

a successful save, the wonder drops to 1 Hit Point instead. Wind-Up Operation. The wonder has the Unconscious condition until another creature winds it with the wonder’s unique key for 1

Elder Brain

Compendium - Sources->Dungeons & Dragons->Monsters of the Multiverse

Resistance (3/Day). If the elder brain fails a saving throw, it can choose to succeed instead. Magic Resistance. The elder brain has advantage on saving throws against spells and other magical effects

Elder Brain The ultimate expression of mind flayer domination, an elder brain sprawls within a vat of viscous brine, cared for by mind flayer minions as it touches the thoughts of creatures near and

7. Workroom

Compendium - Sources->Dungeons & Dragons->Waterdeep: Dungeon of the Mad Mage

7. Workroom The door to this room is slightly ajar. Peering out from within is Cephalossk, the mind flayer arcanist. It has been too long since the mind flayer has fed on a fresh brain, but it’s

willing to forgo attacking the characters if they promise to help it feed on Spite’s mind instead (see “Cephalossk the Mind Flayer”). This workroom is filled with tables, braziers, and an assortment of alchemical equipment.

The Importance of Brains

Compendium - Sources->Dungeons & Dragons->Volo's Guide to Monsters

brain jars. Ceremorphosis Mind flayers don’t reproduce in the traditional sense. Instead, they lay eggs from which hatch tadpole-like creatures that are used to make more of their kind through a

vulnerable to attack from their enemies. They use the brains of such creatures as food, of course, but they also need sentient humanoids to propagate. Food for Thought When a mind flayer devours a brain, it

Ulitharid

Compendium - Sources->Dungeons & Dragons->Waterdeep: Dungeon of the Mad Mage

Ulitharid Very rarely, an illithid tadpole transforms an individual into an ulitharid rather than an ordinary mind flayer. Ulitharids are larger than mind flayers and have six tentacles instead of

authority. In others, the elder brain perceives the ulitharid as a potential rival, manipulating or quashing the ulitharid’s ambitions accordingly. When an ulitharid finds sharing leadership with an

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