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Hierophant Medusa

Monsters The Book of Many Things

2/day: Mass Cure Wounds (cast at 8th level) 1/day each: Blade Barrier, Divination, Greater RestorationThe medusa can take 3 legendary actions, choosing from the options below. It can take only one

a surface such as a ceiling with no way to remain there (for example, sufficient handholds), it falls at the end of this movement. Regional Effects The region containing a medusa’s lair is

Stopping the Ritual

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

Stopping the Ritual If Murgaxor’s barrier and ritual stones are destroyed, Murgaxor loses access to his lair actions. In addition, any creatures or effects brought forth by his lair actions (such as

he crashes to the floor with a wet thump. A rush of air and a concussive blast momentarily replaces all sound. The thrum of magical power is gone. The pitiful, muddy figure on the floor is Murgaxor

30. Iron Barrier

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

characters can use spells such as gaseous form and misty step to move past the iron sheet. Any character who examines the barrier discovers that it slides up into the ceiling. Coiled springs provide

30. Iron Barrier Ahead of you, the face of a snarling minotaur is etched into a sheet of iron that bisects the crawlway. Its eyes have been cut out, letting you see through the sheet, beyond which

Random Obstacles

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

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

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

M5. Engine Room

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

throughout the area, around which a prisoner work gang toils in the sweltering heat. Smooth metallic columns rise to the ceiling, with open hatches set into their sides at ground level. Haggard prisoners

desperate to escape the monastery before its engines fail. They can steal a skiff and follow the marked trails out of the Barrier Peaks if left to their own devices.

12. Dynamo

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

swift and loud. Creatures within 20 feet of it are deafened by the roar unless a soundproof barrier or a silence spell blocks the noise. Any creature that starts its turn in the river and isn’t anchored

area 12 as it does elsewhere. 12a. South Water Collector The ceiling in this chamber forms a dome 20 feet higher than the floor around the cistern, which is 10 feet deep. Water pouring in from the

13. Giants' Living Quarters

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

tasked with carving abstract designs into the roof of this empty cave. To reach the ceiling, Obsidia rides on her brother’s broad shoulders. She is using a chisel to smooth out some of the rough spots

a passive Wisdom (Perception) score of 17 or higher glimpse the wee dragon for a second before it turns invisible. On subsequent turns, Otto flies back to Maddgoth’s castle. Otto’s spell replaces all

1. The Resplendent Grotto of Ichthyglug the Voluminous

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

-high, arched ceiling and contains three 1-foot-thick, magic curtains of translucent, shimmering green seawater. Each watery curtain stretches from floor to ceiling and wall to wall. Sound passing

no farther falls to the floor inside the curtain. Spell effects that would not reasonably pass through the watery curtain are stopped by the barrier as though it were a solid wall. For example, a magic

Sample Traps

Compendium - Sources->Dungeons & Dragons->Basic Rules (2014)

supports keeping an unstable section of a ceiling in place. The trip wire is 3 inches off the ground and stretches between two support beams. The DC to spot the trip wire is 10. A successful DC 15

, the trap triggers. Anyone who inspects the beams can easily determine that they are merely wedged in place. As an action, a character can knock over a beam, causing the trap to trigger. The ceiling

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

across the ceiling. East Statue. This statue depicts Lolth in her drow form, kissing a scourge as stone spiders crawl across her body. 3b. Nave Altar. An altar of pale gray stone carved to look like a

Living Spells

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

. Unfettered. The living spell can move through any barrier, even a wall of magical force. Unusual Nature. The living spell doesn’t require air, food, drink, or sleep. Actions Force Blade. Melee

move through a space as narrow as 1 inch wide without squeezing. The living spell can’t detach from a solid surface, such as a wall, ceiling, or floor. If it has no surface to attach to, the living

61. Control Room

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

of iron to drop from the ceiling in the doorway, sealing off the east exit. Any creature in the doorway when the wall drops must make a DC 15 Dexterity saving throw. On a successful save, the

creature is pushed to one side of the barrier or the other (its choice). On a failed save, the creature is pinned under the wall, falls prone, and takes 44 (8d10) bludgeoning damage. A pinned creature is

The Glitterhame

Compendium - Sources->Dungeons & Dragons->Tales from the Yawning Portal->a2

downward. The floor has been cut into hundreds of shallow steps, but the walls and ceiling are still natural rock. About sixty feet down, a rushing stream spills from a narrow crack to the south and

first chamber of the Glitterhame proper is bisected by the stream and has a number of routes leading away from it. The descending fissure opens up abruptly into a very high cavern, its ceiling easily

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

the those of the beast form? Polymorph replaces only the target’s character sheet or stat block with the stat block of the chosen form. Other effects, such as other spells, still exist. What kinds of

Giant Mushroom Tower

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

Giant Mushroom Tower The cavern around Yggmorgus is huge, and the giant mushroom nearly fills it from floor to ceiling. You have no clear reference to judge the towering mushroom’s size at this

abruptly stops screaming. A brief moment of lucidity replaces his terror, even as his eyes roll back into his head in some kind of bizarre euphoria as he goes limp and slowly sinks back down into the fungal

8. Gray Alchemist

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

Strength check. The room east of the door is empty except for an iron ladder that climbs 60 feet to a stone trapdoor embedded in the ceiling. The trapdoor is unlocked, and above it a narrow, spiraling

tunnel leads to the Darklake Docks. DUERGAR ALCHEMIST A duergar alchemist carries two vials of acid and two flasks of alchemist’s fire. It uses the normal duergar stat block but replaces the Javelin

Example Traps

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

collapse an unstable section of ceiling. The trip wire is 3 inches off the ground and stretches between two weak supports that topple when the trip wire is pulled. The first creature that crosses the

trip wire causes the supports to topple and the unstable section of ceiling to collapse. Each creature beneath the unstable section of ceiling must succeed on a DC 13 Dexterity saving throw, taking 11

Spaceship Features

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

level’s map. Security Mechanism. Between each pair of floors is a metal aperture with a barrier that prevents a creature from traveling to floors it isn’t authorized to access. If a creature doesn’t

Crew, maintenance workers, and technicians Blue Passengers Lighting Unless otherwise stated, the ship’s lighting—glowing, fluorescent panes set into the ceiling—remains functional but is turned off

Example Traps

Compendium - Sources->Dungeons & Dragons->D&D Beyond Basic Rules

collapse an unstable section of ceiling. The trip wire is 3 inches off the ground and stretches between two weak supports that topple when the trip wire is pulled. The first creature that crosses the

trip wire causes the supports to topple and the unstable section of ceiling to collapse. Each creature beneath the unstable section of ceiling must succeed on a DC 13 Dexterity saving throw, taking 11

Outpost Locations

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

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

on a DC 12 Dexterity saving throw or take 7 (2d6) piercing damage from the spikes and be restrained until the spikes are retracted or the barrier is destroyed. The spikes can be retracted only by

Random Encounters

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

encounter. This table replaces the random encounter tables in chapter 2 for as long as the party remains in the Labyrinth. RANDOM ENCOUNTER LOCATIONS Random encounters in the Labyrinth take place in one

characters enter, there are 1d3 additional tunnels leading out. These tunnels can exit the cave through the floor, ceiling, or at odd angles. Tunnels. Most tunnels in the Labyrinth are 5 to 10 feet

19. Steering Tower

Compendium - Sources->Dungeons & Dragons->Hoard of the Dragon Queen

impossible, because a DC 70 Strength check is required. A staircase of ice leads from the tower’s ground floor to a higher chamber, the walls and ceiling of which gleam and glitter: Jewels are everywhere in

spirit replaces Esclarotta’s, and he crashes the castle to keep it from falling into enemy hands (see “Developments”). Treasure If the characters insist on tearing out the valuable control elements

19. Steering Tower

Compendium - Sources->Dungeons & Dragons->Tyranny of Dragons

impossible, because a DC 70 Strength check is required. A staircase of ice leads from the tower’s ground floor to a higher chamber, the walls and ceiling of which gleam and glitter: Jewels are everywhere in

replaces Esclarotta’s, and he crashes the castle to keep it from falling into enemy hands (see “Developments”). Treasure If the characters insist on tearing out the valuable control elements, they can pry

Dungeon Locations

Compendium - Sources->Dungeons & Dragons->Baldur's Gate: Descent into Avernus

the ten-foot-high vaulted ceiling of this dry cellar, the walls of which are lined by a dozen barrels on wooden braces. Half the barrels have brass spigots tapped into them. The room also contains two

The Vanthampurs store animal carcasses and other fresh meat in this room. Hanging in the middle of the room from the 10-foot-high ceiling are six 3-foot-long chains, each ending in a hook. Flayed boar

Areas of the Earth Temple

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

, lurking on ledges in the shadowy upper reaches of this cavern, the ceiling of which is 50 feet higher than the bridge and 100 feet above the cavern floor. Characters with torches or darkvision spot the

chasm floor. Most are dwarves and orcs in badly rusted armor. B2. North Chasm This cavernous area is 100 feet high from floor to ceiling. If the characters enter from the east (via area B1), read the

Spaceship Locations, Level 4

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

throughout this cold, spacious chamber. Soft blue lights blink across their upright faces, and wires snake from the towers along the floor and ceiling. “You shouldn’t be here,” echoes a familiar voice in

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

Landro Locations

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

magical barrier is active, the view port’s crystal is immune to damage. The ceiling is 30 feet high. Broken Control Helmet. The silver helmet once created a magical link between its wearer and the

that stretches from floor to ceiling. The cylinder of light continues upward into Landro’s leg. Within the mushroom patch are two shriekers. The shriekers’ high-pitched screams might attract the

13. The Scavenger

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

the lower deck (areas 13b through 13h). The ceilings on the lower deck are 10 feet high. The ship sits in a 5-foot-deep pool of ooze in an immense cavern, the ceiling of which varies from 30 to 50 feet

replaces one of its feet, which it lost in battle years ago. Tucked in the pockets of its overcoat are four fist-sized gray gemstones — the control gems for the gray slaadi that guard the ship’s upper

Necropolis Locations (Y1-Y9)

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

barrier, which is immune to all damage and can’t be dispelled by dispel magic. The barrier also extends into the Ethereal Plane, blocking ethereal travel. Any creature that touches the barrier for the

first time on a turn takes 40 (9d8) lightning damage. When the barrier appears, read: The shimmering head and shoulders of a woman blink into existence above the arena floor. Electrical currents course

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

The Fissure

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

areas in between. When the adventurers enter the warehouse, read: In the areas where the walls and ceiling didn’t collapse, this warehouse contains no crates, no boxes, no barrels, and no wares of any

other kind. Directly in front of the missing door, the walls, ceiling, and floor have fallen away to reveal a deep sinkhole fissure. Inside the ruin, a hempen rope anchored firmly in the rubble

Little Oak

Compendium - Sources->Dungeons & Dragons->The Wild Beyond the Witchlight

, cushions, and piles of straw. Hanging from the six-foot-high ceiling by a rope is a basket that holds apples, berries, sugarcane, and a few crumpled-up sheets of parchment. In one corner, lying on a cushion

the Story Tracker indicates that the unicorn horn is here, it replaces the wooden horn on the kids’ unicorn costume. The children don’t know that the horn is from a real unicorn. Squirt the Oilcan

Creature Encounters

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

characters encounter. d20 Encounter 1–2 1 chuul lurking in a pool of water 3 1d6 giant spiders clinging to the walls or ceiling 4–5 1 grell floating near the high ceiling 6–9 1d4 gricks hiding in a

Breath feature, and replaces its Underwater Camouflage feature with the following feature: Camouflage. The octopus has advantage on Dexterity (Stealth) checks. Mad Creature The party encounters a

The Lucent Edict

Compendium - Sources->Dungeons & Dragons->Spelljammer: Adventures in Space->Light of Xaryxis

Edict has the following features: Illumination. All areas in the ship are dimly lit by flickering, bioluminescent orbs mounted to the walls or hanging from the ceiling. Removing an orb from its

socket causes the orb to go dark. Interior Doors. Each interior door is a fleshy barrier that opens when a creature that has telepathy approaches within 5 feet of it, then quickly closes after the creature

Lambent Zenith Locations

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

room is plain yet inviting. Five sailors lounge in cramped bunks and colorful hammocks strung from the ceiling. Five lawful good sailors from the Upper Planes (use the veteran stat block, but the

. 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

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