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Returning 35 results for 'barrier beam diffusing ceiling reaction'.
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Drow Matron Mother
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Monsters
Mordenkainen’s Tome of Foes
slots): blade barrier, harm
7th level (2 slots): divine word, plane shift
8th level (1 slot): holy aura
9th level (1 slot): gate
Sunlight Sensitivity. While in sunlight, the drow has disadvantage on
allied demon within 30 feet of the drow uses its reaction to make one attack against a target of the drow's choice that she can see.
Cast a Spell (Costs 1–3 Actions). The drow expends a spell slot to
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
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
Adult Deep Dragon
Legacy
This doesn't reflect the latest rules and lore.
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Monsters
Fizban's Treasury of Dragons
creature within 30 feet of it that it can see. The target must succeed on a DC 16 Wisdom saving throw or use its reaction to make a melee weapon attack against a random creature within reach. If no
creatures are within reach, or the target can’t take a reaction, it takes 5 (1d10);{"diceNotation":"1d10", "rollType":"damage", "rollAction":"Commanding Spores", "rollDamageType":"psychic"} psychic
Ancient Deep Dragon
Legacy
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Monsters
Fizban's Treasury of Dragons
around a creature within 30 feet of it that it can see. The target must succeed on a DC 19 Wisdom saving throw or use its reaction to make a melee weapon attack against a random creature within reach. If
no creatures are within reach, or the target can’t take a reaction, it takes 11 (2d10);{"diceNotation":"2d10", "rollType":"damage", "rollAction":"Commanding Spores", "rollDamageType":"psychic
Monsters
Mordenkainen Presents: Monsters of the Multiverse
action to land on a ceiling to attack targets flying near it.
Seal the Way. Baphomet seals one doorway or other entryway within the lair. The opening must be unoccupied. It is filled with solid stone
after a Short or Long Rest). As an action, this creature allows each ally within 30 feet of it that has the Unerring Tracker trait to make one weapon attack as a reaction against the target of that
Monsters
Mordenkainen Presents: Monsters of the Multiverse
and using Charisma as the spellcasting ability (spell save DC 20):
At will: command, dancing lights, detect magic, thaumaturgy
2/day each: banishment, blade barrier, cure wounds, hold person, plane
allied demon within 30 feet of the drow uses its reaction to make one attack against a target of the drow’s choice that she can see.
Demon Staff. The drow makes one Demon Staff attack.
Cast a
Compendium
- Sources->Dungeons & Dragons->Uni and the Hunt for the Lost Horn
Shield Level 1 Abjuration (Sorcerer, Wizard) Casting Time: Reaction, which you take when you are hit by an attack roll or targeted by the Magic Missile spell
Range: Self
Components: V, S
Duration: 1 round
An imperceptible barrier of magical force protects you. Until the start of your next turn, you have a +5 bonus to AC, including against the triggering attack, and you take no damage from Magic Missile.
Compendium
- Sources->Dungeons & Dragons->Basic Rules (2014)
Shield 1st-level abjuration Casting Time: 1 reaction, which you take when you are hit by an attack or targeted by the magic missile spell Range: Self Components: V, S Duration: 1 round An invisible
barrier of magical force appears and protects you. Until the start of your next turn, you have a +5 bonus to AC, including against the triggering attack, and you take no damage from magic missile.
Compendium
- Sources->Dungeons & Dragons->Player's Handbook (2014)
Shield 1st-level abjuration Casting Time: 1 reaction, which you take when you are hit by an attack or targeted by the magic missile spell Range: Self Components: V, S Duration: 1 round An invisible
barrier of magical force appears and protects you. Until the start of your next turn, you have a +5 bonus to AC, including against the triggering attack, and you take no damage from magic missile.
Compendium
- Sources->Dungeons & Dragons->D&D Beyond Basic Rules
Shield Level 1 Abjuration (Sorcerer, Wizard) Casting Time: Reaction, which you take when you are hit by an attack roll or targeted by the Magic Missile spell
Range: Self
Components: V, S
Duration: 1 round
An imperceptible barrier of magical force protects you. Until the start of your next turn, you have a +5 bonus to AC, including against the triggering attack, and you take no damage from Magic Missile.
Compendium
- Sources->Dungeons & Dragons->Player’s Handbook
Shield Level 1 Abjuration (Sorcerer, Wizard) Casting Time: Reaction, which you take when you are hit by an attack roll or targeted by the Magic Missile spell
Range: Self
Components: V, S
Duration: 1 round
An imperceptible barrier of magical force protects you. Until the start of your next turn, you have a +5 bonus to AC, including against the triggering attack, and you take no damage from Magic Missile.
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
Magic Items
Tasha’s Cauldron of Everything
conjecture than fact, often referring to otherworldly beings, the mysterious Barrier Peaks in Oerth, and the supposedly related device known as the Machine of Lum the Mad. The best details on the device
action, you can command the servant to take one of the actions in its stat block or some other action.
When a creature provokes an opportunity attack from the servant, you can use your reaction to command
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->Dragon of Icespire Peak
S7. Main Hall and Belfry Rows of crumbling pillars support the 40-foot-high vaulted ceiling of this hall. Humanoid bones litter the dusty floor, and a 10-foot-square hole in the ceiling leads to the
can use them to detach the bell from the beam in 1 minute. Any creature under the bell when it falls must succeed on a DC 12 Dexterity saving throw to get out of the way, or take 14 (4d6) bludgeoning damage. The gold bell is worth 2,500 gp.
Compendium
- Sources->Dungeons & Dragons->Ghosts of Saltmarsh
The Smugglers’ Ship The name of the vessel, Sea Ghost, is painted on both sides of the prow. It has a length of nearly 90 feet, a beam of 26 feet, a draft of 8 feet, and stands 9 feet above the
partitions and sealed off from area 6. All enclosed areas have a ceiling height of 8 feet except for the bilge (area 16), which is 4 feet high. The cargo hold hatch in area 1 is closed but not fastened. The bilge hatch in area 11 is closed and bolted from the hold side only.
Compendium
- Sources->Dungeons & Dragons->Tales from the Yawning Portal->a3
beam, which is difficult terrain, requires a DC 10 Dexterity (Acrobatics) check. On a failed check, the character can’t move farther during that turn. If the check fails by 5 or more, the character
falls off the beam 30 feet to the bottom of the pit. If the crank is released once the secret door is open, it unwinds quickly, pulling the door shut. To prevent this, the lever can be pulled down to
Compendium
- Sources->Dungeons & Dragons->Waterdeep: Dungeon of the Mad Mage
ceiling. It has these features: Spelljamming Helm. In the middle of the room is a gilded wooden throne with a cushioned seat and backrest covered in black velvet sewn with silver stars. This high-backed
, 200-pound chair is the helm of the Scavenger, which was stolen by Halaster from the ship of the same name (see level 19, area 13).
Sensors. Near the ceiling float four invisible scrying sensors
Compendium
- Sources->Dungeons & Dragons->Spelljammer: Adventures in Space->Light of Xaryxis
streams down from an aperture in the ceiling 175 feet above. The Astral Font has the following magical properties: Star Beam. A creature that ends its turn in the beam of light is magically teleported
pool with a brilliant beam of light penetrating it from above. Flanking the priest are Prince Xeleth and Princess Xedalli. The prince is arrayed in regal splendor, his expression one of exultation
Compendium
- Sources->Dungeons & Dragons->Hoard of the Dragon Queen
a beam without slipping and falling into the awfulness of area 1E. The stone steps that wind around the outer wall come to a small (approximately 3 feet by 3 feet) stone landing, then continue upward
to the third level. Characters are safe from falling as long as they stay on the landing or the steps. A trapdoor closes off the top of the stairs at the ceiling. The door is latched with a simple
Compendium
- Sources->Dungeons & Dragons->Tyranny of Dragons
a beam without slipping and falling into the awfulness of area 1E. The stone steps that wind around the outer wall come to a small (approximately 3 feet by 3 feet) stone landing, then continue upward
to the third level. Characters are safe from falling as long as they stay on the landing or the steps. A trapdoor closes off the top of the stairs at the ceiling. The door is latched with a simple
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->Basic Rules (2014)
, 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
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
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->Tyranny of Dragons
collected and kept separate from the rest of the creature’s tiles.
A tile creature gains the following reaction.
Narrow Dodge. When targeted by a melee attack, the tile creature can take a reaction
image raises his hands as if summoning a creature from the pool. The doors bulge out noticeably from their frame, pushed out by the weight of stone where the ceiling of the corridor between area 4 and
Compendium
- Sources->Dungeons & Dragons->Rise of Tiamat
tiles are collected and kept separate from the rest of the creature’s tiles.
A tile creature gains the following reaction.
Narrow Dodge. When targeted by a melee attack, the tile creature can take a
reaction to turn its narrowest aspect toward the attacker. The attacker has disadvantage on the attack roll.
Mosaic Sun The sun is depicted in the mosaic near the hallway that is area 6 — and is
Compendium
- Sources->Dungeons & Dragons->Volo's Guide to Monsters
tunnel system, older tunnels are often employed in these traps. A tunnel can be rigged to collapse by pulling a rope connected to a support beam; a fleeing kobold can yank the rope, or the beam might be in
exceedingly narrow is a natural choke point that forces invaders to fight from a disadvantaged position. Such a location usually includes a small chamber in the ceiling that features murder holes, allowing the
Compendium
- Sources->Dungeons & Dragons->Tomb of Annihilation Supplement
. Characters who approach the statue see a creature clinging to the ceiling behind it: Clinging to the ceiling behind the statue is a nine-foot-long slug with glistening black skin and tentacles sprouting
damage in this cave, it can use its reaction to animate one of the tentacles of the kraken statue and cause it to make a melee weapon attack (+3 to hit) against one creature within 20 feet of the
Compendium
- Sources->Dungeons & Dragons->Heroes of the Borderlands
soldiers, including Captain Andrella, are garrisoned in the gatehouse.
Gate. The gate features a massive oak double door. During invasions, soldiers can bar the doors with a heavy timber beam from
the other side.
Murder Holes. Guards atop the gatehouse can thrust spears down at invaders through holes in the ceiling of the archway.
Gatehouse Services The gatehouse offers the following
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->Out of the Abyss
aquatic troll swims up from the depths. It has the abilities of a normal troll, but can also breathe water and has a swimming speed of 30 feet. Darkmantles These creatures cling to the ceiling as the
at stake. If this encounter occurs again, it might be with Nanny or one of her sisters, Maven Delve or Dame Spiderwort. Grell A grell descends from the cavern ceiling, attempting to grab and paralyze
Compendium
- Sources->Dungeons & Dragons->The Book of Many Things
course.
4: Sun Thick vines cover every wall in this chamber, which splits into three parallel hallways separated by walls that don’t quite reach the ceiling. The ceiling emanates a scorching, fiery
the Fool card.
This room is a version of the Surface of the Sun trap in chapter 4, but it differs from that trap in the following ways: Hotter Ceiling. Characters inside the room take 11 (2d10) fire
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
.
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