before barrier device connected reverts

Mighty Servant of Leuk-o

Magic Items Tasha’s Cauldron of Everything

conjecture than fact, often referring to otherworldly beings, the mysterious Barrier Peaks in Oerth, and the supposedly related device known as the Machine of Lum the Mad. The best details on the device

’s origins and operation can be found in the Mind of Metal, a tome of artificer’s secrets that connects the device to the traditions of the lost Olman people, and which was written by Lum the

Random Obstacles

Compendium - Sources->Dungeons & Dragons->Dungeon Master’s Guide (2014)

Blade barrier blocks passage 4–8 Cave-in 9–12 Chasm 1d4 × 10 ft. wide and 2d6 × 10 ft. deep, possibly connected to other levels of the dungeon 13–14 Flooding leaves 2d10 ft. of water in the area; create

barrier to many characters but easily navigated by water-breathing creatures. Obstacles can affect more than one room. A chasm might run through several passages and chambers, or send cracks through

M6. Immortality Ritual

Compendium - Sources->Dungeons & Dragons->Strixhaven: A Curriculum of Chaos

, he can take lair actions. Barrier. Murgaxor is surrounded by a barrier of arcane energy resembling a cocoon of writhing mud. While surrounded by this barrier, Murgaxor and the stones encircling him

can’t be targeted by attacks or spells. The barrier has AC 14; 200 hit points; resistance to bludgeoning, piercing, and slashing damage from nonmagical attacks; and immunity to poison and psychic

Loose Ends

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

Barrier Peaks likely shifts dramatically if the Grand Master is defeated, and a new power struggle soon ensues for control of the monastery. If Ctenmiir escapes or is freed, he might return to the

monastery to occupy it as his new lair. Mary Greymalkin joins him there, creating a sanctum of evil magic. If Gearbox has connected with the monastery, he might remain there as the pair’s unwitting servant

Landro Features

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

engine and runs into other parts of Landro and the connected caverns. This graymatter fluid is the engine’s sensory appendage. The graymatter engine can’t move or control this liquid, but it has

. Psychic Damage. For each ounce of graymatter fluid consumed, the creature takes 11 (2d10) psychic damage. A creature killed by this damage rises as a zombie 1d4 hours after dying. Invisible Barrier The

Appendix D: Magic Items

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

. Some of these items might be experiments that Kwalish is working on, which can be made available to the characters if they return to the Barrier Peaks. Alternatively, if you’d like to make full use of

trinket, two successes to operate a force pike or a teleportation-field device, and four successes to operate Kwalish’s powered armor.

The Dispute

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

powered not by a Docent, but by a device called a graymatter engine that incorporated part of an artifact—perhaps that’s what you seek? The graymatter engine was said to generate a magical barrier

around Landro, making it impossible to enter Landro except where the barrier has already been broken.” If the characters negotiate a deal that the Turquoise Spear finds agreeable, Kalyth tells the party

M6. Prison Cells

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

automatically sliced open with an attack from an elder monk’s force pike. Characters who fall to the valley floor (area C4) from area C1 or area M9 are picked up by a floating teleportation-field device

Barrier Peaks if left to their own devices. Immured Ones. These three unfortunate prisoners have been driven mad by their incarceration and abuse. If freed, each attacks the nearest target unless a

6. Captive Balor

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

black sphere holds the demon in place, and appears to be slowly draining away its essence. The balor Tarnhem is bound here by the magic of Acererak, who has fashioned a device from a sphere of

the mouth of the great green devil face in this area when the Tomb of Horrors is complete. Manipulating Time Having a mechanical guide spend 1 charge in this area reverts Tarnhem to an earlier period before so much of his life force was drained, awakening him if he is unconscious.

Inhabitants

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

ruling over its domain. Long ago, the beholder heard rumors of an arcane device known as the Maze Engine, capable of shifting the gears of reality. During the last Great Modron March, Karazikar

100 feet from top to bottom. They’re located 100 feet from the edge of the chasm and connected to it by tunnels. Each shaft features side chambers and small caverns, and has rope ladders for Karazikar’s slaves to move up and down them.

Oracular Conflux

Compendium - Sources->Dungeons & Dragons->Mythic Odysseys of Theros

Collect the materials necessary to create a revolutionary oracular device. 12 Protect an oracle who must deliver bad news to a worshiper who is both influential and unpredictable. Oracular

they use in predictions. The center of the shrine contains a massive orrery. Connected to the orrery room is a divination chamber, and situated within this chamber is the sacrifice chamber. These areas

Never Alone

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

thessalheart construct is a strange magical-mechanical device that struts about like a chicken, and which features a human heart beating madly behind its glass front. The construct always wanders the zone

opposite to the thessalhydra’s zone, and for good reason. The human heart that sits within the construct is magically connected to the thessalhydra, tapping into the power of the Infernal Machine components

The Monastery

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

appears to emerge from the other ring, no matter how far apart the devices are. The second device has a flying speed of 40 feet, and can be flown remotely under the creature’s control as part of its

own movement. The remote device also grants the creature a sensory awareness of the area around it. This allows the appendage to be used normally, so that the creature can undertake any activity

Mighty Servant of Leuk-o

Compendium - Sources->Dungeons & Dragons->Tasha’s Cauldron of Everything

of unstoppable destruction. Tales of the servant’s origins involve more conjecture than fact, often referring to otherworldly beings, the mysterious Barrier Peaks in Oerth, and the supposedly related

device known as the Machine of Lum the Mad. The best details on the device’s origins and operation can be found in the Mind of Metal, a tome of artificer’s secrets that connects the device to the

Daoine Gloine

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

Daoine Gloine The city of Daoine Gloine has long been thought of as mere legend — just another strange tale from the already-strange Barrier Peaks. Occasionally, travelers would return from the

, resembling an almost-transparent barrier some thirty feet above the ground, visible only where it catches the light. Below that strange barrier, the buildings of the city are unnaturally clean

Hirelings

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

Cartophile’s hirelings join the expedition. Or, instead of front-loading hirelings at the start, these NPCs can be set up as independent explorers not connected to the Cartophile. You can stagger their

can earn his release from the coffin along the way — by any means possible. Value to the Party. Originally native to an area near the Barrier Peaks, Ctenmiir has much experience with the initial route

9. Torture Chamber

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

the controls to this strange torture device, he causes Francache’s lycanthropy to transform the rat into a duplicate of Big Gadai, to the pain and horror of everyone involved. When the rat is in human

statistics but his alignment reverts to neutral. He is endlessly grateful to the characters, providing any information about the temple he can (he is familiar with areas 1 through 23), and offering to guide the party as needed.

3. Haunted Temple of Lolth

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

. When the first character enters the room, Muiral becomes visible as he casts a wall of force spell, using the barrier to cut off that character from the rest of the party. He then engages the

creature can transmit messages that echo through every room and corridor of Muiral’s Gauntlet. The drow priestess Vlonwelv uses this device to broadcast propaganda, proselytize, summon subordinates

The Infernal Machine of Lum the Mad

Magic Items Infernal Machine Rebuild

This strange device was once thought to have been built by gods long forgotten and to have survived the eons since their passing, for it is incredibly ancient and crafted by means unlike anything

known today. However, its true origins derive from a planar craft that crashed in the Barrier Peaks, for the Infernal Machine once functioned as this craft’s central command console. Explorers who

Spaceship Locations, Level 4

Compendium - Sources->Dungeons & Dragons->Quests from the Infinite Staircase

, after which time it must be charged at one of the plug-in terminals located throughout this level. If removed from the ship, the device ceases to function until returned. S64: Stasis Chamber (Green

the ship’s hull in this area. A dark, narrow tunnel extends from the opening and into the mountainside. If the characters follow the tunnel, it continues for 1 mile before exiting into the Barrier

Appendix D: Magic

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

small device—a mere 50 feet in diameter. To attune to this mythallar, a creature must finish a short rest within 30 feet of it, meditating on the mythallar. Up to eight creatures can be attuned to it at

the Ythryn mythallar can sense when the device is being used. A creature attuned to the device can use any of its properties, but only if all other creatures attuned to the device agree to allow it

Spaceship Locations, Level 3

Compendium - Sources->Dungeons & Dragons->Quests from the Infinite Staircase

lift from the cargo hold above (area S33a) is connected to this room. Aphelion or a character who has a violet key card can call the lift down to this area or return the lift to the level above. S49

Spaceship Trinkets table to determine the trinket. Lift. The lift from the cargo hold above (area S33b) is connected to this room. Aphelion or a character who has a violet key card can call the lift down to

Specific Spells

Compendium - Sources->Dungeons & Dragons->Sage Advice & Errata

can dispel the barrier created by Globe of Invulnerability, but not any magical effects that are active inside the barrier. If Dispel Magic targets the magical effect from Bless, does it remove the

damage to revert to its true form and that form has Resistance to Fire damage, does the true form take the full remaining damage or only half due to Resistance? When the creature reverts to its true form

The Fissure

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

reached a long tentacle through the weak planar barrier here. The creature’s tremorsense allows it to detect the presence of creatures in this room, at which point it attacks. Each character must succeed on

device resembling an orrery housing. The device is battered and falling apart, revealing exposed gears and spokes, and with its exterior pieces and plating scattered across the floor. Splayed on the

Vault Locations

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

reverts to its true form and can’t assume a different form until it leaves the light. Once this trap is triggered, it can’t be triggered again. V2: Anteroom A stone statue of an elegant elf in flowing

and sleek. Scrying Sphere. The silver sphere is a scrying device that allows Teremini to remotely communicate with Lord Soth, who has a similar sphere in his home, Dargaard Keep. A creature that

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

psipods do and how to disable them. Psipods A psipod is a magic device that connects the mind of an unconscious humanoid to the mind of the ulitharid in area 12g. The psychic residue that coats each

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

moving blades that sweep down through a chamber, threatening anyone nearby. Typically, a scything blade trap is activated by manipulating a lever or some other simple device. Kobolds especially like

Obviator

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

, or any other device with one or two lenses. When you look through the obviator’s lenses, you use a bonus action to make them function as eyes of minute seeing or eyes of the eagle. Once you make this

no idea what’s going on. 3 You have an entire room dedicated to notes and sketches connected by red yarn. 4 Your plans are so detailed that they have plans of their own. 5 You find

Lambent Zenith Locations

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

. Daveras tried to talk to him, but Figaro used a magical device to erect an impenetrable barrier around the room. Personal History. Daveras wasn’t part of the Lambent Zenith’s crew. When his

barrier if he feels he can trust the characters. The barrier allows sound to pass through, meaning that the characters can talk with Figaro. A character talking with Figaro can make a DC 25 Charisma

Specific Spells

Compendium - Sources->Dungeons & Dragons->Sage Advice Compendium

can dispel the barrier created by globe of invulnerability, but not any magical effects that are active inside the barrier. If dispel magic targets the magical effect from bless cast by a cleric

: blade barrier cloudkill cloud of daggers Evard’s black tentacles forbiddance moonbeam sleet storm spirit guardians Reading the description of any of those spells, you might

Areas of the Fire Temple

Compendium - Sources->Dungeons & Dragons->Princes of the Apocalypse

bas-relief images of sleeping dwarves. An unlit brazier sits in each corner, and a brass censer hangs from a chain connected to the ceiling in the chamber’s center. No one in the fire cult knows of

east. It is a set of steel pulleys and thick iron chains connected to a hanging barricade of black stone. The wall appears to be some sort of a canal lock. This mechanism controls the flow of lava into

Briny Maze Locations

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

Rods. The two rods here create an electric circuit that activates something in the Briny Maze when connected. Lowarnizel believes it to be a doorway; Gossa worries that it’s an alarm. Endless Void. The

open the rear mindgate (between areas B14 and area B19) when connected, as described in the Briny Maze Features section. The rods are 6 feet apart, so a single Small or larger creature can touch them

Spire of Iriolarthas (Y19i-Y19hq)

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

leading down to area Y19j. This barrier was created by a wall of force spell and is maintained by the glowing green crystal set above the doorway (see “Green Crystal” below). As long as this crystal

was held aloft by the Ythryn mythallar (area Y23). Up to eight mages could attune to this device at one time. If all of them agreed, they could use its power to move the city through the skies or

Locations on the Entrance Level

Compendium - Sources->Dungeons & Dragons->Tales from the Yawning Portal->a6

skull which is Snurre’s own device, flanked by fire giants with clubs over their shoulders. The northern one of these inlaid giant-images conceals a secret door hidden in the wall; a cresset to the left

carved ivory, animal teeth, bits of wood, and stones. Together these items, the king believes, can be made to serve as a divination device. Treasure. Aside from all the mundane armor and weapons, the

Castle Cinis Locations

Compendium - Sources->Dungeons & Dragons->Keys from the Golden Vault

to Ghalasine’s demise.’” If King Jhaeros’s heart is taken from the city of Ghalasine or if Charmayne is killed, Jalynvyr reverts to his true form (that of a lawful neutral, drow mage) and is no

to be connected to the library (area S5) by a slender stone bridge. It now floats 20 feet off the ground, 10 feet from the window of area S11. When the characters enter the tower, read or paraphrase

D&D Beyond

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