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Returning 35 results for 'before barrier diffusing ceiling reduce'.
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Monsters
Mythic Odysseys of Theros
spellcasting ability is Wisdom (spell save DC 18). The rider can innately cast the following spells, requiring no material components:
At will: command, compelled duel
1/day each: banishment, blade barrier
Assault (Costs 2 Actions). The ashen rider makes an attack using its ashen blade or bolt of ash, and then its mount can use its reaction to make a melee weapon attack.
Reduce to Ash (Costs 3 Actions). The
Ancient Deep Dragon
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Monsters
Fizban's Treasury of Dragons
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
conjures sludge-like moss that briefly covers surfaces in the lair. The ceiling, floor, and walls of the lair become difficult terrain until initiative count 20 on the next round.
Toxic Spores. The
Adult Deep Dragon
Legacy
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Monsters
Fizban's Treasury of Dragons
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
.
Mossy Sludge. The dragon conjures sludge-like moss that briefly covers surfaces in the lair. The ceiling, floor, and walls of the lair become difficult terrain until initiative count 20 on the next round
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
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
Obstacle 1 Antilife aura with a radius of 1d10 × 10 ft.; while in the aura, living creatures can’t regain hit points 2 Battering winds reduce speed by half, impose disadvantage on ranged attack rolls 3
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
Monsters
Fizban's Treasury of Dragons
, much as a forest fire clears dead wood, replenishes the soil, and allows the forest to regrow even healthier than before. To this end, topaz dragons use their power to reduce crumbling structures and
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
Monsters
Fizban's Treasury of Dragons
creation and growth, much as a forest fire clears dead wood, replenishes the soil, and allows the forest to regrow even healthier than before. To this end, topaz dragons use their power to reduce
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
Compendium
- Sources->Dungeons & Dragons->Waterdeep: Dungeon of the Mad Mage
track or reaches its maximum speed of 60 feet. A cart stops if it hits a stopped cart or the iron guard barrier at either end of the track.
Each cart weighs 300 pounds empty and is equipped with a
hand brake. A creature inside a cart or next to one can use its action to pull the hand brake to reduce the cart’s speed by up to 30 feet, bringing it to a stop if its speed drops to 0.
Moving out of
Compendium
- Sources->Dungeons & Dragons->Waterdeep: Dungeon of the Mad Mage
bookshelves, fully stocked with upside-down history books from the many parts of the world Halaster has explored.
Desk. In the middle of the 15-foot-high ceiling is an upside-down desk topped with a stack of
. Unless anchored, held down, or affected by a fly spell or similar magic, any creature or object that enters this room falls up toward the ceiling. The desk is empty except for the array of nine books
Compendium
- Sources->Dungeons & Dragons->Curse of Strahd
through the lower levels of the house as it makes its descent. Thick cobwebs fill the shaft and reduce visibility in the staircase to 5 feet. The secret door and shaft don’t exist until the house
. Rooms are 8 feet tall and supported by thick wooden posts with crossbeams. The only exception is area 38, which has a 16-foot-high ceiling supported by stone pillars. Characters without darkvision
Compendium
- Sources->Dungeons & Dragons->Waterdeep: Dungeon of the Mad Mage
ceiling flickers, and all creatures in the chamber behind the door magically shrink as though affected by the reduce effect of the enlarge/reduce spell (no saving throw allowed). The effect lasts for
. 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
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->Dragon of Icespire Peak
holes line the ceiling, enabling fortress defenders to shoot ballistas at invaders or pour boiling oil on top of them. With the dwarves gone, the only remaining defenses are the portcullis and the double
reduce the time proportionately. The noise created by smashing down the doors is loud enough to alert all the dwarf ghouls in the fortress, which gather in area A4 and attack once the doors fall. The
Compendium
- Sources->Dungeons & Dragons->Curse of Strahd
K41. Treasury This octagonal vault is free of dust and cobwebs. The domed ceiling forty feet above is painted black and sparkles with a display of stars in unfamiliar constellations. Barely contained
within this vault is a square tower, twenty feet on a side and thirty feet high, with arrow slits on all sides and a battlemented roof. The domed ceiling is coated with dry pitch. The “stars” are
Compendium
- Sources->Dungeons & Dragons->Fizban's Treasury of Dragons
, walls, and ceiling covered in carpets of mold and moss, or featuring larger mushrooms and plants in neatly organized displays. The challenge rating of a legendary deep dragon increases by 1 when
). The spell ends early if the dragon uses this lair action again or if the dragon dies. Mossy Sludge. The dragon conjures sludge-like moss that briefly covers surfaces in the lair. The ceiling, floor
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->Curse of Strahd
ceiling. Heavy beams sag overhead from centuries of supporting weight. The staircase starts at area K84 and spirals upward around a central shaft (area K18a), climbing 300 feet to the top of the high tower
can create a hole wide enough to crawl through in 1 hour, or reduce the entire wall to a pile of masonry bricks and rubble in 2 hours. Thirty feet below the masonry wall and 50 feet above the foot of
Compendium
- Sources->Dungeons & Dragons->Tomb of Annihilation
over a pulley bolted to the ceiling and coils around an iron winch set into a nearby wall. Iron manacles dangle from hooks on the south wall. To the north, a faintly glowing stone disk covers the floor
wrists and shackles on their ankles. The manacles impose disadvantage on ability checks made to climb or swim. The shackles reduce a prisoner’s walking speed by half and impose disadvantage on ability
Compendium
- Sources->Dungeons & Dragons->Strixhaven: A Curriculum of Chaos
damage plus 9 (2d8) thunder damage.
Reduce to Memory (Recharge 6). Thundering golden energy erupts around a creature the apprentice can see within 90 feet of it. The creature must make a DC 12
two Scroll Bash attacks.
Scroll Bash. Melee Spell Attack: +5 to hit, reach 30 ft., one target. Hit: 8 (1d10 + 3) bludgeoning damage plus 9 (2d8) thunder damage.
Reduce to Memory (Recharge 5–6
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->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->Waterdeep: Dungeon of the Mad Mage
this hall are as follows: Chandeliers. Radiant crystal chandeliers levitate near the ceiling.
Paintings. Paintings line the walls. They come in many sizes and have gilded frames.
The hall contains
, its body is destroyed as its soul is released into the afterlife. Treasure. The shield is worth 7,500 gp and can be used as an ordinary shield, but battle damage might reduce its value as an art object at your discretion.
Compendium
- Sources->Dungeons & Dragons->Curse of Strahd
the rubble in 4 hours, and multiple characters working together can reduce the time proportionately. The cellar is a 30-foot-square room with mortared stone walls, a 10-foot-high ceiling supported 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->Out of the Abyss
only a matter of time before they reduce the doors to rubble. Eight more invisible duergar stand nearby, ready to storm the svirfneblin warehouse as soon as the doors crumble. Treasure. Each dead
Dripskillet, are holed up in this chamber, which is shaped like a cube. The ceiling is 100 feet high, and the walls are lined with niches that serve as residences and storage spaces. Levitating crystal
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
Compendium
- Sources->Dungeons & Dragons->Waterdeep: Dragon Heist
years ago by the two wizards who built it. The edifice is surrounded by a magical barrier that has the properties of a wall of force. Manshoon rarely leaves the towers and uses a teleportation circle
blackmailing the Masked Lords, he hopes to oust Laeral Silverhand as Open Lord and take her place, kill the Blackstaff, reduce the Masked Lords to mere vassals, and declare himself the Wizard-King of
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
any wandering cultists are defeated, reduce the number of cultists encountered in area V33 accordingly. If the characters make no effort to hide the bodies of the cultists they defeat, someone stumbles
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
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
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->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






