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Ancient Blue Dragon Legacy

Monsters Basic Rules (2014)

end of another creature's turn. The dragon regains spent legendary actions at the start of its turn. Detect. The dragon makes a Wisdom (Perception) check. Tail Attack. The dragon makes a tail

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

Adult Blue Dragon Legacy

Monsters Basic Rules (2014)

of another creature's turn. The dragon regains spent legendary actions at the start of its turn. Detect. The dragon makes a Wisdom (Perception) check. Tail Attack. The dragon makes a tail attack

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

Adult White Dragon Legacy

Monsters Basic Rules (2014)

actions at the start of its turn. Detect. The dragon makes a Wisdom (Perception) check. Tail Attack. The dragon makes a tail attack. Wing Attack (Costs 2 Actions). The dragon beats its wings. Each

the ceiling to latch on like bats or slithering down icy crevasses. A legendary white dragon’s innate magic deepens the cold in the area around its lair. Mountain caverns are fast frozen by the

Ancient White Dragon Legacy

Monsters Basic Rules (2014)

actions at the start of its turn. Detect. The dragon makes a Wisdom (Perception) check. Tail Attack. The dragon makes a tail attack. Wing Attack (Costs 2 Actions). The dragon beats its wings. Each

the ceiling to latch on like bats or slithering down icy crevasses. A legendary white dragon’s innate magic deepens the cold in the area around its lair. Mountain caverns are fast frozen by the

Iymrith

Monsters Storm King's Thunder

. Iymrith casts one of the following spells, requiring no spell components and using Charisma as the spellcasting ability (spell save DC 20): 1/day each: detect magic, dispel magic, ice storm, stone

regains spent legendary actions at the start of its turn. Detect. The dragon makes a Wisdom (Perception) check. Tail Attack. The dragon makes a tail attack. Wing Attack (Costs 2 Actions). The

Zikzokrishka

Monsters Candlekeep Mysteries

spent legendary actions at the start of its turn. Detect. Zikzokrishka makes a Wisdom (Perception) check. Tail Attack. Zikzokrishka makes a tail attack. Wing Attack (Costs 2 Actions). Zikzokrishka

, Zikzokrishka can take a lair action to cause one of the following effects. She can’t use the same effect two rounds in a row: Part of the ceiling collapses above one creature that Zikzokrishka

Archaic

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

, requiring no material components and using Intelligence as the spellcasting ability (spell save DC 22): At will: detect magic, divination, sending 1/day each: banishment, forcecage Teleport. The archaic

Ancient Brass Dragon Legacy

Monsters Basic Rules (2014)

be used at a time and only at the end of another creature's turn. The dragon regains spent legendary actions at the start of its turn. Detect. The dragon makes a Wisdom (Perception) check. Tail

speed.A Brass Dragon’s Lair A brass dragon’s desert lair is typically a ruin, canyon, or cave network with ceiling holes to allow for sunlight. Lair Actions On initiative count 20 (losing

Adult Brass Dragon Legacy

Monsters Basic Rules (2014)

creature's turn. The dragon regains spent legendary actions at the start of its turn. Detect. The dragon makes a Wisdom (Perception) check. Tail Attack. The dragon makes a tail attack. Wing Attack

’s desert lair is typically a ruin, canyon, or cave network with ceiling holes to allow for sunlight. Lair Actions On initiative count 20 (losing initiative ties), the dragon takes a lair action

Baphomet Legacy

Monsters Out of the Abyss

. Innate Spellcasting. Baphomet’s spellcasting ability is Charisma (spell save DC 18). He can innately cast the following spells, requiring no material components. At will: detect magic 3/day

gravity reversal if he’s in the room, although he likes to use this action to land on a ceiling to attack targets flying near it. Baphomet casts mirage arcane, affecting a room within the lair

Juiblex

Monsters Mordenkainen Presents: Monsters of the Multiverse

as the spellcasting ability (spell save DC 20): At will: detect magic 3/day each: contagion, gaseous formJuiblex can take 3 legendary actions, choosing from the options below. Only one legendary

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

Juiblex Legacy

Monsters Out of the Abyss

attacks). Juiblex can innately cast the following spells, requiring no material components: At will: acid splash (17th level), detect magic 3/day each: blight, contagion, gaseous form Legendary

Guide) appears on a spot on the ceiling that Juiblex chooses within the lair. The slime disintegrates after 1 hour. Regional Effects The region containing Juiblex’s lair is warped by its

6. Reflections

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

6. Reflections This swampy cavern has a 50-foot-high ceiling of jagged rock. Rising from the mire is an island of dry rock, upon which are the following features: Ruins and Statue. Amid the ruins of

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.

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.

T6. Hovering Stone

Compendium - Sources->Dungeons & Dragons->Princes of the Apocalypse

that maintains an invisible floor-to-ceiling cylinder that is 10 feet wide. Visible to detect magic (transmutation school), the column enables objects placed and left in it to float where released. The

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

21. Night and Day

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

21. Night and Day Timekeeper. Four pillars support the 20-foot-high ceiling. An iron ring 20 feet in diameter is suspended from iron brackets affixed to the tops of the pillars so that it hangs

. Directly above the ring and the disk is a 10-foot-deep, dome-shaped concavity in the ceiling. Statues. Nestled in alcoves are two life-size statues of robed human wizards, their faces obscured

13. Starry Cavern

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

the mines. Glittering minerals in the ceiling of this large cavern catch the light and send it back to create the impression of a starry night sky. Dozens of skeletons—many crushed under fallen debris

, into which a flight of stairs has been cut. Passages lead out of this area to the north, south, and west. The damaged buildings are described in areas 14 and area 15. Minerals in the ceiling are

Q25. Trapped Hallway

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

Q25. Trapped Hallway This T-shaped hallway has branches to the west, east, and south. Three arched windows in the north wall look out over the foggy grounds. The ceiling in the hall is 20 feet high

character enters one of these squares, a floor-to-ceiling wall of stone (created by the spell of the same name) magically appears across the opening on the south wall. At the same time, the phantom warriors

18. Devil Pit

Compendium - Sources->Dungeons & Dragons->Tomb of Annihilation

the ceiling of area 35. Magical darkness fills the mouth and the shaft. A detect magic spell or similar effect reveals auras of evocation and illusion magic within the shaft. A successful dispel magic

3. Boulderfall Hall

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

3. Boulderfall Hall The ceiling in this hall is 60 feet high, sloping down to 40 feet as it moves toward area 2. Although the ceiling remains level heading eastward, its distance from the floor

that radiates a faint aura of conjuration magic under the scrutiny of a detect magic spell. Touching a sconce with an open flame causes a spectral fire to materialize above the sconce. This flame sheds

9. Alarm System

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

9. Alarm System Sloped Roof. The ceiling is 30 feet high at the northwest end of the cave and gradually slopes down to 20 feet high as the cavern narrows into a passage that leads to area 10

trap that releases rocks from a hidden crevice in the ceiling. If a trap triggers, all creatures occupying the trapped square must succeed on a DC 14 Dexterity saving throw or be struck by a falling

Haven Features

Compendium - Sources->Dungeons & Dragons->Candlekeep Mysteries

area H8, which has a domed ceiling 50 feet high. Light. Unless otherwise noted, all areas are unlit. Golems and Mummies. Each section of wall marked “G” or “M” on the map indicates the location of a

hidden stone golem (G) or mummy (M) in stasis. A detect magic spell reveals an aura of conjuration magic emanating from that section of wall. When called for in the text, the golems and mummies phase out of the walls and materialize in the dungeon. Until then, they are hidden and can’t be harmed.

16. Magic Cauldron

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

buttress the 20-foot-high ceiling of this hall. A cavity in the southernmost pillar contains a covered lead cauldron visible to anyone south of the pillar. A stained wooden spoon hangs from a hook

above the cauldron. Illusory Wall. An illusory wall hides area 18. A detect magic spell cast on the wall reveals an aura of illusion magic. The wall has no substance, and creatures and objects can pass

4. With Sword in Hand

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

of a hand, amid stains of dried blood. Distant Voices. Echoes of distant voices occasionally fill the room, emanating from 10-inch-long, 5-inch wide vents in the ceiling (see “Echoes” below

. The longsword is easy to remove from the armor stand, requiring no ability check. A detect magic spell reveals that the sword is magical. It sheds dim light in a 10-foot radius. It also carries a

19. Ye Olde Feast Halls

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

. Hanging Rods. Iron rods designed to hold tapestries are bolted to the walls near the ceiling. The tapestries have long since turned to dust, leaving the rods bare. 19a. Servants’ Feast Hall This room

reeks. A detect magic spell reveals auras of conjuration magic around the tables. Every day at dawn, piles of rotting meat materialize atop the tables, courtesy of Halaster. Sometime between dawn and dusk

X22. Northwest Annex

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

the hall with the rich smells of cooked meat, sweet vegetables, piping hot gravy, and wine. The ceiling here is 20 feet high. Amber doors lead south to a hallway (area X18) and east to a shattered

dispelled (DC 17). Hidden in plain sight amid the feast on the table is a green copper ewer embossed with images of dancing bears, elks, and wolves. The ewer, like the table, isn’t illusory. A detect

21. Animated Ballistae

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

rating of 2 (450 XP). The ballistae can’t perceive (and thus they ignore) creatures that keep to the easternmost 60-foot section of the hallway. Once they detect intruders, however, the ballistae

31. Reflected Hall

Compendium - Sources->Dungeons & Dragons->Tomb of Annihilation

holding them. Twelve painted figures line each hall, six on the west wall and six on the east wall, directly across from one another. Figures on facing walls are perfect reflections of each other

, 10-foot-wide curtain between the two hallways, radiating an aura of conjuration magic to a detect magic spell or similar effect. A successful dispel magic (DC 17) cast on the curtain causes it to

37. Weapon of Mass Disintegration

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

. 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

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

Example Traps

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

8. Egg Chamber

Compendium - Sources->Dungeons & Dragons->Out of the Abyss

8. Egg Chamber The ceiling of this cavern is 80 feet high. A pair of purple worms have laid their eggs here, cementing them together and anchoring them to the cavern walls with their resinous saliva

11 19–20 1 purple worm The giant spider walks on the ceiling and surprises the adventurers unless someone in the party has a passive Wisdom (Perception) score of 14 or higher. If a purple worm

23. Worg's Eye Watch Post

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

. The goblins have turned a human skeleton into a marionette and dangled it from ropes attached to the ceiling so that they can make it dance around the room. The goblins chant “Nimraith! Nimraith

of the room. (The bugbears are trying to reassemble it.) The bugbears detect the approach of adventurers with the aid of the intellect devourers’ Detect Sentience trait and therefore can’t be

Maze of Mists

Compendium - Sources->Dungeons & Dragons->Quests from the Infinite Staircase

) The following locations are keyed to map 5.2. Stacey Allan & William Doyle Map 5.2: Maze of Mists View Player Version P13: Welcome Room This octagonal room has a domed ceiling and smells faintly of

magnetic trap within the chamber’s ceiling. Each creature in the room wearing metal armor is pulled up to the 30-foot-high ceiling, as are any metal objects or weapons that aren’t being worn or carried

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