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Returning 35 results for 'before barrier diffusing ceiling returns'.
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Adult Blue Dragon
Legacy
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Monsters
Basic Rules (2014)
that make up its lair if that lair is invaded. The dragon then burrows out, leaving its attackers to be crushed and suffocated. When it returns later, it collects its possessions — along with the
effect two rounds in a row:
Part of the ceiling collapses above one creature that the dragon can see within 120 feet of it. The creature must succeed on a DC 15 Dexterity saving throw or take 10
Ancient Blue Dragon
Legacy
This doesn't reflect the latest rules and lore.
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Monsters
Basic Rules (2014)
that make up its lair if that lair is invaded. The dragon then burrows out, leaving its attackers to be crushed and suffocated. When it returns later, it collects its possessions — along with
same effect two rounds in a row:
Part of the ceiling collapses above one creature that the dragon can see within 120 feet of it. The creature must succeed on a DC 15 Dexterity saving throw or take 10
Monsters
Strixhaven: A Curriculum of Chaos
creature encounters a solid object (such as a ceiling) in this fall, it strikes the object just as it would during a downward fall. If the creature reaches the top of the area without striking anything
, it hovers there until the start of the archaic’s next turn, at which time gravity returns to normal and the creature falls.
Spellcasting. The archaic casts one of the following spells
Monsters
Storm King's Thunder
that lair is invaded. The dragon then burrows out, leaving its attackers to be crushed and suffocated. When it returns later, it collects its possessions — along with the wealth of the dead
row:
Part of the ceiling collapses above one creature that the dragon can see within 120 feet of it. The creature must succeed on a DC 15 Dexterity saving throw or take 10 (3d6);{"diceNotation":"3d6
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
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
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
returns to the space where it began this movement.
Slimy Organs. This creature has resistance to bludgeoning, piercing, and slashing damage from nonmagical attacks.
Whenever this creature suffers a
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
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
Compendium
- Sources->Dungeons & Dragons->Tales from the Yawning Portal->a7
no exit. The floor returns to a closed position in 10 minutes, sealing any victim inside the pit until another creature triggers the floor trap again. Crawl Space. The ceiling route is a crawl space
upward or downward has any results. Moving them up opens a small trapdoor in the center of the ceiling 10 feet above. Pushing them simultaneously down opens the entire floor to a 100-foot-deep pit with
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.
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
Compendium
- Sources->Dungeons & Dragons->Waterdeep: Dungeon of the Mad Mage
21. Animated Ballistae Light. The arched, 30-foot-high ceiling of this long hall is studded with glowing red crystals that cast dim light throughout the hall. (Crystals pried out of their fixtures go
amble forward on hinged legs to close the distance. If a ballista has nothing to attack on its turn, it returns to its startingposition.
Compendium
- Sources->Dungeons & Dragons->Keys from the Golden Vault
sudden shift in the architecture: a square window becomes circular, a wood panel turns to stone, and the like. Immediately after, the cracks vanish, and the architecture returns to normal. Ceilings and
snowflakes hang in the windows, illusory icicles dangle from the ceiling, frost fractals spreads across walls, and magically preserved ice sculptures perch atop similarly preserved ice pedestals. Some of the
Compendium
- Sources->Dungeons & Dragons->Storm King's Thunder
entire temple shudders. The frost giant scowls, dodges the dragon, and strikes the statue once more, this time breaking off a large chunk. This act of desecration causes cracks to form in the ceiling, and
does his utmost to keep Iymrith from fleeing by attempting to grapple her on later turns. After falling debris deals damage for 2 rounds, the ceiling collapses the next time initiative reaches 0
Monsters
Fizban's Treasury of Dragons
from the ceiling, giving the place a warm, cozy glow. (The lanterns might be magical or maintained by minions.) The floors are covered with plush sand-colored carpets.
Hoard Chamber. A small chamber in
giant squid in the region returns to normal levels over the course of 1d10;{"diceNotation":"1d10", "rollType":"roll", "rollAction":"Days"} days. The existing abundance of crystals and topazes remains
Monsters
Fizban's Treasury of Dragons
state but are hung with the dragon’s collection of nautical paintings, mirrors, and sun-colored tapestries. Numerous gold-and-glass hanging lanterns are suspended from the ceiling, giving the
returns to normal levels over the course of 1d10;{"diceNotation":"1d10", "rollType":"roll", "rollAction":"Days"} days. The existing abundance of crystals and topazes remains, but new ones form at a
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
Compendium
- Sources->Dungeons & Dragons->Waterdeep: Dungeon of the Mad Mage
38. “I Just Met a Girl Named Skrianna” Carvings. The walls of this hall are carved to look like tree trunks. The arched, 10-foot-high ceiling resembles a canopy of dead boughs and branches
headmaster and the characters, she takes her spellbook and returns to her quarters as commanded, but not before ordering her grell valet to shadow the party, spy on their activities, and report back
Compendium
- Sources->Dungeons & Dragons->Waterdeep: Dungeon of the Mad Mage
10. Roller-Dragon This oval chamber has a 10-foot-high ceiling. Standing against the east wall is a stone statue of a young gold dragon on stone rollers. The dragon’s mouth is agape, teeth bared, and
rolling statue, falls prone, and takes 55 (10d10) bludgeoning damage. The statue returns to its original position against the east wall after 1 minute, ready to roll again the next time a creature teleports into the room.
Compendium
- Sources->Dungeons & Dragons->Curse of Strahd
K62. Servants’ Hall This hall stands in deadly silence. Heavy beams support a sagging, ten-foot-high ceiling. Fog clings to the floor, obscuring everything that lies less than three feet above it. A
giant shadow lurches across the ceiling as a dark figure shuffles purposefully down the corridor toward you. The figure approaching is Cyrus Belview, a mongrelfolk (see appendix D) and Strahd’s
Compendium
- Sources->Dungeons & Dragons->Tomb of Annihilation Supplement
11. Throne Room During the day, sunlight slips through cracks in the ceiling and a window in the west wall, dimly illuminating the area. On clear nights, moonlight does the same. The sound of
white coral branches and mosaics in the form of sharks made of decorative stones and shells. Pillars carved to look like thick strands of kelp support the cracked, thirty-foot-high domed ceiling. Two
Compendium
- Sources->Dungeons & Dragons->Waterdeep: Dungeon of the Mad Mage
30-foot-high ceiling of this cave, the walls of which are encrusted with crystals that catch and reflect light.
Boulders. The floor is strewn with boulders and rubble. Six galeb duhr beholden to
pursue prey beyond the confines of this cavern. 11b. Jarûk’s Cavern Music. Rock music fills this 30-foot-high cavern, which resembles the inside of a geode. The walls and ceiling are encrusted with
Compendium
- Sources->Dungeons & Dragons->Storm Lord’s Wrath
ghost returns to the Ethereal Plane, it chants a magical phrase that summons a star spawn mangler (see appendix A) into the tower for every two members in the party, including sidekicks. Defeating
that has fallen into ruin.
Ceilings. Ceilings inside the tower are 20 feet high and vaulted. The fourth floor is open to the sky, and a large portion of the third-floor ceiling has caved in where
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
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
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
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
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
Compendium
- Sources->Dungeons & Dragons->Waterdeep: Dungeon of the Mad Mage
Beholder Statue Hanging from the 30-foot-high, domed ceiling by three iron chains is a 6-foot-diameter carved stone beholder. Netherskull carved the statue using its carefully manipulated
returns. Netherskull. Unless it has been defeated elsewhere, the death tyrant floats 30 feet above the stone-tiled floor of this 40-foot-high chamber. Netherskull seeks to destroy intruders and animate
Compendium
- Sources->Dungeons & Dragons->Eberron: Rising from the Last War
on the enclosed lift car open to reveal the inside of a 15-foot cube made of stone with etchings of unicorn patterns covering its walls. A magic orb in the ceiling illuminates the lift. Two young
upset and plainly states she is summoning the Watch and stalks away with Luna. Two minutes later, Vonnie returns with three city Watch guards and accuses them of harassing her, vandalizing the lift
Compendium
- Sources->Dungeons & Dragons->Princes of the Apocalypse
room, twenty feet by twenty feet, containing a stone coffin. The ceiling is cracked, allowing roots and water into the chamber from multiple points, although little collects here. At the coffin’s
returns to its place in the coffin if no one remains in this room. Treasure The chest contains ruined cloth and the sodden remains of a book, but it also has a false wooden bottom. Someone who succeeds on
Compendium
- Sources->Dungeons & Dragons->Princes of the Apocalypse
turn there takes 3 (1d6) fire damage. After 1 minute, the pillars cool. Lava Passage. The northeastern lava flow is only 4 feet lower than the ceiling of the passage through which it flows
upward. A natural pillar is the only feature of the upper level. In the center the lower level, a vortex of flame jets from the floor toward the ceiling. Numerous exits head off in different directions
Compendium
- Sources->Dungeons & Dragons->Planescape: Adventures in the Multiverse->Turn of Fortune’s Wheel
and psychic damage. If any segment of the bridge is destroyed, the entire structure crumbles, causing creatures on it to fall. This part of the Spire has no ceiling or floor. Any creature that falls
creature. After doing so, Kirgaz is satisfied and returns to the Spire. Tomb of the Frog On entering this area, the character with the highest passive Wisdom (Perception) score hears heavy breathing
Compendium
- Sources->Dungeons & Dragons->Waterdeep: Dungeon of the Mad Mage
silently informs the headmaster in area 15 when visitors arrive.
Ceiling Mosaics. This room has a 30-foot-high arched ceiling. Bright mosaics on the arched roof depict wizards engaged in dazzling
they slay the devil in area 47, then escorts them to the top of the stairs leading down to level 10 as promised. After watching them disappear down the stairs, the arcanaloth returns to area 15
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






