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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

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

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

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

13. Transmutorium

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

reverts to normal size. The effects of the chamber aren’t cumulative — a reduced creature that is reduced again or an enlarged creature that is enlarged again doesn’t change size further. Each time the

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

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

2. Entrance Chamber

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

gaping hole in the ceiling that leads outside. The hole lets in bright sunlight during the day and dim moonlight at night. The light doesn’t extend beyond the room. Iymrith uses this hole to enter

2. Entrance Chamber Partition walls made of tight-fitting sandstone blocks support the ceiling of this chamber, which contains a 20-foot-high hill of sand. Twenty feet above the top of the mound is a

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

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

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

K51. Closet

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

K51. Closet This small, wood-paneled room reeks of mildew and has a ten-foot-high ceiling. Iron hooks line the walls, and a dusty black cloak hangs from one hook in the center of the south wall. The

cloak is ordinary. The witches in area K56 placed it here to help them remember which hook opens the secret trapdoor in the ceiling. The trapdoor can be found after a search of the room and a

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

Living Spells

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

Languages — Challenge 4 (1,100 XP) Magic Resistance. The living spell has advantage on saving throws against spells and other magical effects. Unusual Nature . The living spell doesn’t require

. 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

40. Lynnorax's Lair

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

40. Lynnorax’s Lair Ceiling. This room has a 40-foot-high, domed ceiling. Dracolich. Lynnorax, an adult blue dracolich, faces the double door to the east and exhales lightning in that direction as

soon as it sees intruders. Pillars. The four pillars that buttress the ceiling are carved out of black crystal and inscribed with arcane runes. Lynnorax fights without fear, knowing that its

Tremorsense

Compendium - Sources->Dungeons & Dragons->Player’s Handbook

both in contact with the same surface (such as the ground, a wall, or a ceiling) or the same liquid. Tremorsense can’t detect creatures or objects in the air, and it doesn’t count as a form of sight.

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

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

Speed

Compendium - Sources->Dungeons & Dragons->Lost Mine of Phandelver

reduced to 0, or is otherwise deprived of the ability to move, it falls unless it can hover or is being held aloft by magic, such as by the fly spell. Swim. A creature that has a swimming speed doesn’t need to spend extra movement to swim.

vertical surfaces. The creature doesn’t need to spend extra movement to climb. Fly. A creature that has a flying speed can use its movement to fly. If a flying creature is knocked prone, has its speed

Tremorsense

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

both in contact with the same surface (such as the ground, a wall, or a ceiling) or the same liquid. Tremorsense can’t detect creatures or objects in the air, and it doesn’t count as a form of sight.

Loadstone

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

Loadstone Wondrous item, rare This stone is a large gem worth 150 gp. Curse. The stone is cursed, but its magical nature is hidden; detect magic doesn’t detect it. An identify spell reveals the

stone’s true nature. If you use the Dash or Disengage action while the stone is on your person, its curse activates. Until the curse is broken with remove curse or similar magic, your speed is reduced by 5

18. Animated Hallway

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

, walking, or running on the floor, the ceiling, or a wall when it fails this saving throw, it tumbles 20 feet down the tunnel before landing prone. A flying creature has advantage on the saving throw and doesn’t tumble or fall prone if it fails the save.

30. Buried Tower

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

30. Buried Tower Stairs curve along the wall of this buried tower chamber, rising then halting abruptly at the ceiling. Much of the floor has fallen away, collapsing into darkness. Centuries ago

one character whose voice doesn’t echo. Instead, a pale amber light ignites in the dark below and something whispers the character’s name from the pit.

Kollema Hall Features

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

domed ceiling. The ceiling above each balcony is 20 feet high. Doors. At night, all exterior doors to the hall are locked and sealed with arcane lock spells. Only Lorehold College faculty members

higher or lower in the hall (depending on the direction spoken), along with anything the creature is wearing or carrying. If the destination glyph is occupied or the command doesn’t make sense (such as saying “down” while on the hall’s lowest floor), the transport glyph doesn’t function.

Vampirate

Compendium - Sources->Dungeons & Dragons->Spelljammer: Adventures in Space->Boo’s Astral Menagerie

darkvision 120 ft., passive Perception 10 Languages the languages it knew in life Challenge 2 (450 XP) Proficiency Bonus +2 Explode. When the vampirate is reduced to 0 hit points, it explodes in a

, including upside down on ceilings, without needing to make an ability check. Unusual Nature. The vampirate doesn’t require air or drink. Actions Energy Drain. Melee or Ranged Spell Attack: +4 to hit

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