blast barriers diffusing connected release

Brain in a Jar (Noncore)

Monsters Lost Laboratory of Kwalish

Detect Sentience. The brain in a jar can sense the presence and location of any creature within 300 feet of it that has an Intelligence of 3 or higher, regardless of interposing barriers, unless the

each: charm person, command, hold person 1/day each: compulsion, hold monster, sleep (cast at 3rd level), Tasha's hideous laughterMind Blast (Recharge 5-6);{"diceNotation":"1d6","rollType":"recharge

Brain in Iron

Monsters Infernal Machine Rebuild

Detect Sentience. The brain in a jar can sense the presence and location of any creature within 300 feet of it that has an Intelligence of 3 or higher, regardless of interposing barriers, unless the

each: charm person, command, hold person 1/day each: compulsion, hold monster, sleep (cast at 3rd level), Tasha's hideous laughterMind Blast (Recharge 5-6);{"diceNotation":"1d6","rollType":"recharge

Brain in a Jar

Monsters Icewind Dale: Rime of the Frostmaiden

Detect Sentience. The brain can sense the presence and location of any creature within 300 feet of it that has an Intelligence of 3 or higher, regardless of interposing barriers, unless the creature

target is Undead, it also has disadvantage on attack rolls against the brain until the end of the brain’s next turn. Mind Blast (Recharge 5–6);{"diceNotation":"1d6","rollType":"recharge

Brain Breaker

Monsters Phandelver and Below: The Shattered Obelisk

telepathic conversations with up to ten creatures at a time. The brain breaker can let those creatures telepathically hear each other while connected in this way.Multiattack. The brain breaker makes two

can have up to four targets grappled at a time. Mind Blast (Recharge 5–6);{"diceNotation":"1d6", "rollType":"recharge", "rollAction":"Mind Blast"}. Creatures of the brain breaker’s choice within

Infected Elder Brain

Monsters Phandelver and Below: The Shattered Obelisk

conversations with up to ten creatures at a time. The elder brain can let those creatures telepathically hear each other while connected in this way.Multiattack. The elder brain makes two Tentacle

four targets grappled at a time. Mind Blast (Recharge 5–6);{"diceNotation":"1d6", "rollType":"recharge", "rollAction":"Mind Blast"}. Creatures of the elder brain’s choice within 60 feet of

Goblin Psi Commander

Monsters Phandelver and Below: The Shattered Obelisk

Mental Burst. When the goblin dies, its pent-up mental energy explodes in a psychic blast. Each creature within 5 feet of it must succeed on a DC 13 Intelligence saving throw or take 10 (4d4

of their psionic abilities, goblin psi commanders wield blades of pure psychic energy. They can throw barriers of mental force while toppling foes with a single, mind-splitting burst. Psionic

Alhoon

Monsters Mordenkainen Presents: Monsters of the Multiverse

", "rollAction":"Arcane Bolt", "rollDamageType":"force"} force damage. Mind Blast (Recharge 5–6);{"diceNotation":"1d6", "rollType":"recharge", "rollAction":"Mind Blast"}. The alhoon magically emits psychic

energy in a 60-foot cone. Each creature in that area must succeed on a DC 16 Intelligence saving throw or take 22 (4d8 + 4);{"diceNotation":"4d8+4", "rollType":"damage", "rollAction":"Mind Blast

Elder Brain Legacy

Monsters Volo's Guide to Monsters

conversations with up to ten creatures at a time. The elder brain can let those creatures telepathically hear each other while connected in this way.Tentacle. Melee Weapon Attack: +7;{"diceNotation

","rollDamageType":"psychic"} psychic damage at the start of each of its turns until the grapple ends. The elder brain can have up to four targets grappled at a time. Mind Blast (Recharge 5–6);{"diceNotation":"1d6

Miirym

Monsters Candlekeep Mysteries

":"Breath Weapon"}. Miirym uses one of the following breath weapons: Cold Breath. Miirym exhales an icy blast in a 90-foot cone. Each creature in that area must make a DC 21 Constitution saving throw

role as Candlekeep’s defender, Miirym can move anywhere within the library fortress, passing through walls and other solid barriers. She can’t enter extradimensional spaces, since they

Elder Brain

Monsters Mordenkainen Presents: Monsters of the Multiverse

creatures telepathically hear each other while connected in this way.Tentacle. Melee Weapon Attack: +7;{"diceNotation":"1d20+7","rollType":"to hit","rollAction":"Tentacle"} to hit, reach 30 ft., one

grapple ends. The elder brain can have up to four targets grappled at a time. Mind Blast (Recharge 5–6);{"diceNotation":"1d6","rollType":"recharge","rollAction":"Mind Blast"}. Creatures of the elder brain

Locations in the City

Compendium - Sources->Dungeons & Dragons->Tomb of Annihilation

possibly against the dangers they perceive from the city’s less-well-off districts, which all lie outside the main wall. The walls are impressive barriers of massive, fitted stone. Like other structures

connects Throne Hill to the southern slopes, site of several merchant princes’ villas. East of the harbor, the Hall of Gold gleams atop the city’s tallest hill, Mount Sibasa, which is connected by

Knowledge of Avernus

Compendium - Sources->Dungeons & Dragons->Vecna: Eve of Ruin

. A foul haze perpetually shrouds the skies. Ambient light swells above the horizon in a grim mockery of a sunset, but the sky is bereft of celestial bodies. Searing gusts of wind blast across the

and destruction. Queen of Dragons. Tiamat is the five-headed progenitor of the chromatic dragons in some realms and embodies the vices of evil dragonkind. Her lair is located in Avernus, connected to numerous monuments and temples scattered across the hellscape.

Brain in a Jar

Compendium - Sources->Dungeons & Dragons->Infernal Machine Rebuild

) Detect Sentience. The brain in a jar can sense the presence and location of any creature within 300 feet of it that has an Intelligence of 3 or higher, regardless of interposing barriers, unless the

/day each: charm person, command, hold person 1/day each: compulsion, hold monster, sleep (cast at 3rd level), Tasha’s hideous laughter Actions Mind Blast (Recharge 5-6). The brain in a jar

Goblin Psi Commander

Compendium - Sources->Dungeons & Dragons->Phandelver and Below: The Shattered Obelisk

psi commanders wield blades of pure psychic energy. They can throw barriers of mental force while toppling foes with a single, mind-splitting burst. Goblin Psi Commander Small Aberration (Goblinoid

) Proficiency Bonus +2 Mental Burst. When the goblin dies, its pent-up mental energy explodes in a psychic blast. Each creature within 5 feet of it must succeed on a DC 13 Intelligence saving throw or

14. Main Laboratory (North)

Compendium - Sources->Dungeons & Dragons->Infernal Machine Rebuild

kind, connected by silver wires to other tables holding stoic-looking lizardfolk. More silver wires connect the tables to a complex control panel standing between them. The experiment underway in

in the underground lake to uncover more of the gems there.) Creatures Four lizardfolk shamans work here as lab managers, overseeing two lizardfolk renders connected to a pair of locathah. If attacked

Lords of Dust

Compendium - Sources->Dungeons & Dragons->Eberron: Forge of the Artificer

the world. The Lords of Dust are servitors of those lords—lesser (but still terrifying) Fiends who seek to sustain the overlords and release them from their prisons in Khyber. Goals of the Lords of Dust

are constantly impeded by newly discovered elements of Prophecy—especially since the dragonmarks that appear on mortals often seem connected to relevant parts of the Prophecy. This drives many Lords of

Brain in a Jar

Compendium - Sources->Dungeons & Dragons->Van Richten’s Guide to Ravenloft

Intelligence of 3 or higher, regardless of interposing barriers, unless the creature is protected by a mind blank spell. Magic Resistance. The brain has advantage on saving throws against spells and other

the brain’s next turn. Mind Blast (Recharge 5–6). The brain magically emits psychic energy in a 60-foot cone. Each creature in that area must succeed on a DC 14 Intelligence saving throw or take 17

16. Main Laboratory (South)

Compendium - Sources->Dungeons & Dragons->Infernal Machine Rebuild

space is filled with creatures strapped down to tables or chained to the floor, all attended to by lizardfolk workers. In this west wing of the lab, two owlbears are chained to the floor, connected by

release the owlbears and the two-headed owlbear to take on the characters, then flee to alert the rest of the laboratory section of the temple (areas 1 through 23). If the owlbears or their two-headed kin

Brain in a Jar

Compendium - Sources->Dungeons & Dragons->Icewind Dale: Rime of the Frostmaiden

location of any creature within 300 feet of it that has an Intelligence of 3 or higher, regardless of interposing barriers, unless the creature is protected by a mind blank spell. Magic Resistance. The

disadvantage on attack rolls against the brain until the end of the brain’s next turn. Mind Blast (Recharge 5–6). The brain magically emits psychic energy in a 60-foot cone. Each creature in that area

Interacting with Myconids

Compendium - Sources->Dungeons & Dragons->Dragons of Stormwreck Isle

effectively speaking thoughts at each other. This effect doesn’t allow any creature to probe invasively into another creature’s mind. But it transcends language barriers, and you can play around with the kind

Spores When myconids take damage, they release spores that alert all other myconids within 240 feet of them. All myconids in the cave are in range of each other’s Distress Spores. Myconids in areas B2 and area B3 move to area B4 if they detect Distress Spores.

Beholder Lairs

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

chambers are connected by vertical or steeply sloped tunnels that the beholder carves out of the surrounding stone, each passage barely large enough to admit the beholder’s body. Enemies that are too big

beholder’s control generally have their own living spaces in the lair. Because a beholder’s minions are typically not able to fly, many of these chambers are connected to others by staircases or gently

Icingdeath Locations

Compendium - Sources->Dungeons & Dragons->Divine Contention

press the button, causing the panther head attached to the aft of the ship to release a 20-foot-square patch of oil onto the surface of the sea, which the head then ignites by releasing a jet of flame

: Three brass cylindrical canisters, one at the middle of the cabin and two at either end, stand upright, connected to each other by long pipes which converge and exit to the aft of the ship. Each 1

Outpost Locations

Compendium - Sources->Dungeons & Dragons->Icewind Dale: Rime of the Frostmaiden

) and the overlook (area O3) run down to release the ogre zombie from its cage and attack intruders who breach this hall. The zombie sides with the duergar in any fight. Duergar that fall below half

he moves the lever to trigger a trap. Trap. When the lever is pulled, iron spikes spring out from the floor and ceiling to form barriers across each doorway. A creature in either opening must succeed

Random Encounters

Compendium - Sources->Dungeons & Dragons->Out of the Abyss

exits, requiring the characters to hack or blast their way through (or find a route around). d6 Fungi 1 1d6 gas spores 2 1d6 violet fungi 3–4 3d6 edible fungi (choose from the varieties in “Fungi

that all other creatures they meet join them, releasing a cloud of spores if anyone refuses to do so. They can release this cloud once, and any creature within 30 feet of one or more of the myconids

Alhoon

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

alternative way to escape the permanency of death, but that path is long and fraught with barriers. Alhoons are mind flayers who have used a shortcut to attain a lich-like state. Elder brains forbid mind

. Hit: 14 (4d6) cold damage, and the alhoon regains 14 hit points. Arcane Bolt. Ranged Spell Attack: +8 to hit, range 120 ft., one target. Hit: 28 (8d6) force damage. Mind Blast (Recharge 5–6). The

Meenlock

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

on saving throws against any effect that turns undead. Actions Chilling Grasp. Melee Spell Attack: +8 to hit, reach 5 ft., one target. Hit: 10 (3d6) cold damage. Mind Blast (Recharge 5–6). The

Spellcasting (Psionics) traits, as well as the Tentacles, Extract Brain, and Mind Blast action options (all described below). So long as a mind flayer lich feeds captured souls to its phylactery, it

Monsters B - E

Compendium - Sources->Dungeons & Dragons->Lost Laboratory of Kwalish

that has an Intelligence of 3 or higher, regardless of interposing barriers, unless the creature is protected by a mind blank spell. Magic Resistance. The brain in a jar has advantage on saving

), Tasha’s hideous laughter Actions Mind Blast (Recharge 5-6). The brain in a jar magically emits psychic energy in a 60-foot cone. Each creature in that area must succeed on a DC 15 Intelligence

Staff

Compendium - Sources->Dungeons & Dragons->Acquisitions Incorporated

, and flaws, along with a shared history, can all add depth to a group of untrained hirelings. Those musicians might be connected by the ideal of tradition, and bound to the franchise to protect a

. Skilled hirelings can be fired and hired as needed. A franchise might bring on a couple of thugs to act as distraction during a street fair, then release those NPCs to hire a different set of skilled

Dungeon Characteristics

Compendium - Sources->Dungeons & Dragons->Tales from the Yawning Portal->a5

, Ooze Grottos, Predator Pools, Golem Laboratories, and Temples of Extraction. Zones are also labeled on the map. Areas are identified by numbers. Map 5.1: The Doomvault Dimensional Barriers Magic

or ethereal creature can’t pass between zones. A detect magic spell can’t penetrate the structure of the Doomvault to sense the dimensional barriers. Magic Gates Two types of magic gates, white and

47. Elemental Cells

Compendium - Sources->Dungeons & Dragons->Tomb of Annihilation

blast out of this cramped cell. The walls are scribed with relief carvings showing volcanoes setting cities ablaze. Rows of tiny holes are bored into the floor and the ten-foot-high ceiling. A human

character can try to unlock the button using thieves’ tools, doing so with a successful DC 17 Dexterity check. Pressing the unlocked pendant causes the secret door’s lock to release with a dull clunk

Example Simple Traps

Compendium - Sources->Dungeons & Dragons->Xanathar's Guide to Everything

(level 1–4, dangerous threat) The crossbow trap is a favorite of kobolds and other creatures that rely on traps to defend their lairs. It consists of a trip wire strung across a hallway and connected to a

) check reveals the pressure plate. A successful DC 20 Dexterity check using thieves’ tools disables it, and a check with a total of 5 or lower triggers the trap. Fiery Blast Simple trap (level 5–10

Warforged Colossus

Compendium - Sources->Dungeons & Dragons->Eberron: Rising from the Last War

colossus with magic wards and traps in case enemy soldiers breached its defenses. As long as the primary operator remained connected to the master docent and in control, the traps were inactive, but if

doomed to haunt it until they can find blessed release. Map 4.8: Fallen Warforged Colossus View Player Version

Elder Brain

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

hear each other while connected in this way. Actions Tentacle. Melee Weapon Attack: +7 to hit, reach 30 ft., one target. Hit: 20 (4d8 + 2) bludgeoning damage. If the target is a Huge or smaller

Blast (Recharge 5–6). Creatures of the elder brain’s choice within 60 feet of it must succeed on a DC 18 Intelligence saving throw or take 32 (5d10 + 5) psychic damage and be stunned for 1 minute. A

Ironslag: Upper Level

Compendium - Sources->Dungeons & Dragons->Storm King's Thunder

running through these tunnels end at a pair of wooden barriers. Three pillars of black basalt support the ceiling. The bucket chain passes through gaps in the western and eastern walls, its iron

Zaltember’s captors to release him as a show of good faith. This is a trick; the duke and the duchess will freely renege on their promises if they have nothing to lose. If the characters refuse to

14. Psipod Nexus I

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

. Each capsule is tilted at a 45-degree angle, connected to metal floor panels with thick copper wires, and coated in a thin, slimy residue. Illithids. Four mind flayers carrying dark sheets of metal

might release them if, in exchange, they promise to destroy the githyanki that are threatening the mind flayer colony. You can roleplay these interactions or have the characters make ability checks to

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