before barriers diffusing ceiling reduced

Living Demiplane

Monsters Icewind Dale: Rime of the Frostmaiden

solid surface, such as a wall, ceiling, or floor. If it has no surface to attach to, the living spell is destroyed (see “Planar Destruction” below). Extradimensional Chamber. When the living spell

, target, or deal damage to the living spell; however, they can damage the room around them. Each 5-foot-square section of ceiling, wall, and floor in the chamber has AC 17, 50 hit points, immunity to poison

Intellect Devourer Legacy

Monsters Monster Manual (2014)

Detect Sentience. The intellect devourer 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

","rollAction":"Devour Intellect"}: If the total equals or exceeds the target’s Intelligence score, that score is reduced to 0. The target is stunned until it regains at least one point of

Tomb Tapper

Monsters Icewind Dale: Rime of the Frostmaiden

Petrified Death. A tomb tapper reduced to 0 hit points turns into a lifeless stone statue. Anything it's wearing or carrying is not transformed. Sense Magic. The tomb tapper senses magic within 30

feet of it and can use an action to pinpoint the location of any creature, object, or area in that range that bears magic. This sense penetrates barriers but is blocked by a thin sheet of lead. Tunneler

Bones of the Earth

Spells Elemental Evil Player's Companion

reduced to 0 hit points, a pillar crumbles into rubble, which creates an area of difficult terrain with a 10-foot radius that lasts until the rubble is cleared. Each 5-foot-diameter portion of the area

save. If a pillar is prevented from reaching its full height because of a ceiling or other obstacle, a creature on the pillar takes 6d6 bludgeoning damage and is restrained, pinched between the

Adult Amethyst Dragon

Monsters Fizban's Treasury of Dragons

next turn. On a successful save, the creature takes half as much damage, and its speed isn’t reduced. Spellcasting (Psionics). The dragon casts one of the following spells, requiring no spell

the air is cool and slightly damp. Glowing Crystals. Large clusters of glowing amethyst crystals grow out from the walls and ceiling, casting dim light in a 30-foot radius. Chimneys. Two chimneys

Ancient Amethyst Dragon

Monsters Fizban's Treasury of Dragons

next turn. On a successful save, the creature takes half as much damage, and its speed isn’t reduced. Spellcasting (Psionics). The dragon casts one of the following spells, requiring no spell

ceiling, casting dim light in a 30-foot radius. Chimneys. Two chimneys connect the main caves to the three chambers above. Each chimney appears to continue up through the ceiling of the upper level and

Ancient Deep Dragon Legacy

Monsters Fizban's Treasury of Dragons

. Change Shape. The dragon magically transforms into any creature that is Medium or Small, while retaining its game statistics (other than its size). This transformation ends if the dragon is reduced to 0

or ambush visitors if the need arises. A well-cultivated lair abounds with Underdark fungi and plants, with the floor, walls, and ceiling covered in carpets of mold and moss, or featuring larger

Juiblex

Monsters Mordenkainen Presents: Monsters of the Multiverse

of the following lair actions; it can’t take the same lair action two rounds in a row: Green Slime. A green slime (see the Dungeon Master’s Guide) appears on a spot on the ceiling that

critical hit or is reduced to 0 hit points, it sprays acid; each creature within 5 feet of it takes acid damage equal to its number of Hit Dice. Acid, Poison; Bludgeoning, Piercing, and Slashing that is NonmagicalCold, Fire, Lightning

Adult Deep Dragon Legacy

Monsters Fizban's Treasury of Dragons

. The dragon magically transforms into any creature that is Medium or Small, while retaining its game statistics (other than its size). This transformation ends if the dragon is reduced to 0 hit points

that allow them to escape or ambush visitors if the need arises. A well-cultivated lair abounds with Underdark fungi and plants, with the floor, walls, and ceiling covered in carpets of mold and moss

Hierophant Medusa

Monsters The Book of Many Things

DC 15 Constitution saving throw. On a failed save, a target’s speed is reduced to 0 and can’t increase. On a successful save, its speed is halved. The target’s speed returns to normal

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

Lost Spire Overview

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

to walk on ceilings and climb over the tops of doorways. Furnishings that weren’t securely bolted to the walls or floor lie in disarray, or in shards, on the ceiling. Illumination. All rooms

, corridors, and staircases are lit by continual flame spells cast in sconces. The flames still point toward the ceiling, betraying their magical nature. They give off no heat. Room and Door Heights. All rooms

X34. Wizard's Bedchamber

Compendium - Sources->Dungeons & Dragons->Curse of Strahd

furnishings have been reduced to dust-covered heaps. Cobwebs cover arcane sigils carved into the walls. The ceiling here is 10 feet high. The sigils that cover the walls were once wards designed to

Delerium Chip Legacy

Equipment

, delerium shatters and crumbles into worthless ash when reduced to zero hit points. However, delerium geodes release a random arcane anomaly (see Dungeons of Drakkenheim) when destroyed. Delerium

or a ceiling), which allows them to move as if they were climbing. Unattended objects float around randomly. 2 The nearest creature is affected by a hideous laughter spell (Save DC 15) but

Delerium Geode Legacy

Equipment

, delerium shatters and crumbles into worthless ash when reduced to zero hit points. However, delerium geodes release a random arcane anomaly (see Dungeons of Drakkenheim) when destroyed. Delerium

or a ceiling), which allows them to move as if they were climbing. Unattended objects float around randomly. 2 The nearest creature is affected by a hideous laughter spell (Save DC 15) but

Delerium Massive Cluster Legacy

Equipment

, delerium shatters and crumbles into worthless ash when reduced to zero hit points. However, delerium geodes release a random arcane anomaly (see Dungeons of Drakkenheim) when destroyed. Delerium

or a ceiling), which allows them to move as if they were climbing. Unattended objects float around randomly. 2 The nearest creature is affected by a hideous laughter spell (Save DC 15) but

10. Chuth's Lair

Compendium - Sources->Dungeons & Dragons->Rise of Tiamat

comparison to what the cult claimed for Tiamat and what the dragon possesses in his other lairs. The vaulted ceiling is 60 feet high here. If Chuth is in the stronghold, he is initially found here only

of his total hoard, Chuth has no interest in dying to protect it. He flees when he is reduced to half his hit points or fewer. Neronvain fights until similarly reduced, then makes his way to Chuth

10. Chuth's Lair

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

comparison to what the cult claimed for Tiamat and what the dragon possesses in his other lairs. The vaulted ceiling is 60 feet high here. If Chuth is in the stronghold, he is initially found here only

of his total hoard, Chuth has no interest in dying to protect it. He flees when he is reduced to half his hit points or fewer. Neronvain fights until similarly reduced, then makes his way to Chuth

14. Drow Rafts

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

14. Drow Rafts Darkmantles. Stalactites hang from the 30-foot-high ceiling. Two darkmantles disguised as stalactites remain motionless until they attack. Rafts. Leaning against the west wall are

, they flee if reduced to half their hit points or fewer. The drow use the rafts to ply the River of the Depths. Each raft is built to carry six Medium humanoids and their gear, though as many as twelve people can fit onto a raft if push comes to shove.

Strahd Dies

Compendium - Sources->Dungeons & Dragons->Curse of Strahd

Strahd Dies When Strahd is reduced to 0 hit points, he turns to mist and retreats to his coffin (see the Misty Escape feature in the vampire stat block). The vampire must be in his resting place to

Ravenloft trembles with fury, shaking dust from the ceiling of the vampire’s tomb. The shudders abate as Strahd’s burning hatred melts away, replaced at last with relief. The dark orbs of his eyes wither

Delerium Crystal Legacy

Equipment

, delerium shatters and crumbles into worthless ash when reduced to zero hit points. However, delerium geodes release a random arcane anomaly (see Dungeons of Drakkenheim) when destroyed. Delerium

or a ceiling), which allows them to move as if they were climbing. Unattended objects float around randomly. 2 The nearest creature is affected by a hideous laughter spell (Save DC 15) but

Delerium Shard Legacy

Equipment

, delerium shatters and crumbles into worthless ash when reduced to zero hit points. However, delerium geodes release a random arcane anomaly (see Dungeons of Drakkenheim) when destroyed. Delerium

or a ceiling), which allows them to move as if they were climbing. Unattended objects float around randomly. 2 The nearest creature is affected by a hideous laughter spell (Save DC 15) but

37. Weapon of Mass Disintegration

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

surface is covered with gleaming mithral plates. Each alcove is brightly lit by the yellow glow of a small crystal dome embedded in its 8-foot-high ceiling. Key Shapes. Set into the mithral-plated

. A detect magic spell reveals a strong aura of abjuration magic engulfing each alcove, which is just spacious enough to accommodate a single Medium creature. The crystal dome in the ceiling is the

K27. King's Hall

Compendium - Sources->Dungeons & Dragons->Curse of Strahd

K27. King’s Hall This twenty-foot-high hall has a dark, vaulted ceiling draped with cobwebs. A low moan seems to travel the length of the corridor as it rises and falls, intoning sadness and despair

. The moaning is only the wind. Characters who examine the ceiling can, with a successful DC 20 Wisdom (Perception) check, spot pulleys and a rope that run the full length of the corridor along the

Delerium Fragment Legacy

Equipment

, delerium shatters and crumbles into worthless ash when reduced to zero hit points. However, delerium geodes release a random arcane anomaly (see Dungeons of Drakkenheim) when destroyed. Delerium

or a ceiling), which allows them to move as if they were climbing. Unattended objects float around randomly. 2 The nearest creature is affected by a hideous laughter spell (Save DC 15) but

13. Transmutorium

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

it once was. The tapestry has AC 5, 33 hit points, immunity to poison damage, and vulnerability to fire damage. If it is reduced to 0 hit points, the tapestry is destroyed. The characters gain no XP

. Embedded in the wall next to the door is a brass panel with four brass buttons arranged in a diamond formation. (A similar panel appears inside the chamber.) Light. A crystal dome in the ceiling sheds

11. Olhydra's Canal

Compendium - Sources->Dungeons & Dragons->Locathah Rising

) cold damage, and its speed is reduced by 10 feet. Last, but certainly not least, the openings at either end of the area ice over, and must be broken before characters can either enter or exit the

area. Both icy barriers have AC 12, 30 hit points each, vulnerability to fire damage, and immunity to poison and psychic damage.

M10. Shadow Theater

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

silhouettes of fir trees, lit from behind and above by a white, moon-like sphere of glass that hangs from the ceiling by a short chain and casts long shadows on the walls. Suspended above the stage is a

. Shadows that are reduced to 0 hit points are destroyed and reattach to their original owners as normal shadows. A creature whose Strength is reduced to 0 by a shadow’s Strength Drain attack does not die

24. Sandbox

Compendium - Sources->Dungeons & Dragons->Tales from the Yawning Portal->a3

24. Sandbox The two thick lines on the map mark the boundaries of a trap. A character who examines the ceiling 20 feet overhead as the party passes under one of the marked areas and makes a

copper, come crashing down, sealing off the indicated area. These barriers are a foot thick; each has an AC of 15 and 100 hit points. Lifting a door requires a successful DC 25 Strength (Athletics) check

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

must succeed on a DC 15 Dexterity saving throw or take 44 (8d10) slashing damage. Any creature reduced to 0 hit points by this damage is chopped in two.

2. Island Chamber

Compendium - Sources->Dungeons & Dragons->Rise of Tiamat

2. Island Chamber This large chamber has a 40-foot-high ceiling set with massive stalactites, with smaller stalagmites set across the ground. A pool with a small island in the southeast corner of the

the ceiling in this area, using his breath weapon on the characters as soon as they enter the caves. He then crashes down on the party, focusing on elves over any other humanoids with his melee attacks

17. Spellcasting Hall

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

17. Spellcasting Hall This room has a vaulted ceiling 30 feet high. It is lit by continual flame spells cast on stone wall sconces shaped like fiendish claws. The walls, floor, and ceiling are

incapacitated or reduced to 0 hit points, a statue instantly teleports to its alcove, where it reverts to its inanimate form and regains all its hit points. It can’t reanimate again until all three

2. Island Chamber

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

2. Island Chamber This large chamber has a 40-foot-high ceiling set with massive stalactites and smaller stalagmites. A pool with a small island in the southeast corner of the cavern is fed by

described below. Chuth emerges from the pool and joins the fight 3 rounds later. Dragon Attack If the characters were attacked by Chuth in area 1, the dragon clings to the ceiling in this area, using

Abyssal Prisons

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

dimensional barriers that prevent fiends from teleporting or summoning other demons within the sector. Fiendish Arena In this zone, a vampire named Issem culls the weakest demons using arena combat. When

signs of frescoes that once covered the walls here. A half-dozen ruined chandeliers hang from the cracked ceiling. In the northeast corner is a black gate. Creatures. A vampire spawn keeps watch here

6. Meat Locker

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

. It is made from hundreds of heavy leather strips, each about the width of a human hand. The strips are fixed to the ceiling and are long enough to drag on the floor. The curtain extends from wall to

of old blood assaults your nose. The floor is covered with dried puddles of it. Four floor-to-ceiling columns are spaced across the chamber, and chains have been strung between them like clothesline

2. What Is Dead May Never Die

Compendium - Sources->Dungeons & Dragons->Locathah Rising

blind. The encounter distance is reduced to 10 feet in these instances (see “Unusual Environments” in chapter 5 of the Dungeon Master’s Guide). For characters with a magical light source or darkvision

, the water is considered to be clear. Sea Floor. The sea floor here is compacted sand with some small stone outcroppings, though none big enough to stand on. Ceiling Height. The ceiling of the coral

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