more some with only area for for layer

Demonomicon of Iggwilv

Magic Items Dungeon Master’s Guide

Fiend that you can see that is trapped within the area of a Magic Circle spell. The Fiend must succeed on a DC 20 Charisma saving throw with Disadvantage or become trapped within one of the Demonomicon

those hours pass, anyone who opens the book’s remaining binding is transported to a nascent layer of the Abyss that lies hidden within the book. At the heart of this deadly, semisentient domain

Aurnozci

Monsters The Book of Many Things

, or half as much damage on a successful one.The demon lord Aurnozci is a wormlike horror of fiery flesh and toxic seepage. In its present form, Aurnozci can’t leave Xulregg, the Abyssal layer

"} fire damage when it enters the ashes’ space for the first time on a turn or starts its turn there. Aurnozci’s Lair Aurnozci’s lair is a layer of the Abyss called Xulregg. See

Dragonflesh Grafter

Monsters Fizban's Treasury of Dragons

", "rollType":"recharge", "rollAction":"Acid Retch"}. The grafter retches forth a spray of acidic bile in a 30-foot cone. Each creature in that area must make a DC 12 Dexterity saving throw, taking 14 (4d6

a hulking fusion of draconic and bipedal characteristics, standing between 8 and 12 feet tall. As its original nature wanes, its draconic powers grow, giving it a thick layer of dragon scale armor

Fire Hellion

Monsters Bigby Presents: Glory of the Giants

in a 20-foot-radius sphere centered on a point the hellion can see within 120 feet of itself. The sphere spreads around corners. Each creature in that area must make a DC 17 Dexterity saving throw. A

. The devil teaches the giant how to forge with infernal iron and hellfire, enabling the giant to craft weapons that can funnel the souls of the slain to Avernus, the first layer of the Nine Hells. In

Abhorrent Overlord

Monsters Mythic Odysseys of Theros

minute or until the overlord loses concentration (as if concentrating on a spell), and its area is lightly obscured and difficult terrain. Any creature that moves into the area for the first time on a

, while a balor meeting a Theros demon on some other plane might consider it a rarity from some undiscovered Abyssal layer. In general, feel free to use whatever fiends you wish when telling stories

Eater of Hope

Monsters Mythic Odysseys of Theros

);{"diceNotation":"1d6","rollType":"recharge","rollAction":"Breath of Hopelessness"}. The eater of hope exhales a miasma of Underworld winds in a 30-foot cone. Each creature in that area must make a DC 14

mortals as one of the Underworld’s countless demonic denizens, while a balor meeting a Theros demon on some other plane might consider it a rarity from some undiscovered Abyssal layer. In general

Juiblex

Monsters Mordenkainen Presents: Monsters of the Multiverse

layer of the Abyss, which is also known as Shedaklah, is a bubbling morass of fetid sludge. The landscape is covered in vast expanses of caustic slimes, and strange organic forms rise from the oceans of

Juiblex chooses within the lair. The slime disintegrates after 1 hour. Slippery Slime. Juiblex slimes a square area of ground it can see within the lair. The area can be up to 10 feet on a side. When

Adult Lunar Dragon

Monsters Spelljammer: Adventures in Space

ancient or adult lunar dragon’s lair is warped by the dragon’s magic, which produces one or more of the following effects: Black Frost. A thin layer of black frost covers the ground

dust and frost known as moon devils crisscross the area within 1 mile of the lair, intercepting other creatures they encounter. A moon devil is a free-willed air elemental that deals cold damage instead

Ancient Lunar Dragon

Monsters Spelljammer: Adventures in Space

containing an ancient or adult lunar dragon’s lair is warped by the dragon’s magic, which produces one or more of the following effects: Black Frost. A thin layer of black frost

;Swirling funnels of dust and frost known as moon devils crisscross the area within 1 mile of the lair, intercepting other creatures they encounter. A moon devil is a free-willed air elemental that deals

Orcus Legacy

Monsters Out of the Abyss

necrotic energy 60 feet tall and with a 10-foot radius rises from that point and lasts until the end of Orcus’s next turn. Creatures in that area are vulnerable to necrotic damage.Orcus is the Demon

chapter 7, "Treasure” of the Dungeon Master’s Guide.Orcus’s Lair Orcus makes his lair in the fortress city of Naratyr, which is on Thanatos, the layer of the Abyss that he rules

Orcus

Monsters Mordenkainen Presents: Monsters of the Multiverse

with a 10-foot radius rises from that point and lasts until the end of Orcus’s next turn. Creatures in that area have vulnerability to necrotic damage.Orcus is the Demon Prince of Undeath, also

Dungeon Master’s Guide.Orcus’s Lair Orcus makes his lair in the fortress city of Naratyr, which is on Thanatos, the layer of the Abyss that he rules. Surrounded by a moat fed by the

Demogorgon

Monsters Mordenkainen Presents: Monsters of the Multiverse

long to delirium. As a result, all followers of the Prince of Demons break with reality sooner or later.Demogorgon’s Lair Demogorgon makes his lair in a palace called Abysm, found on a layer

normally docile. Within that area, any ability check involving Animal Handling has disadvantage. Venomous Beasts. The area within 6 miles of the lair becomes overpopulated with poisonous snake

Juiblex Legacy

Monsters Out of the Abyss

known as the Slime Pits, a realm which Juiblex shares with Zuggtmoy. This layer of the Abyss, which is also known as Shedaklah, is a bubbling morass of oozing, fetid sludge. Its landscape is covered

initiative ties), Juiblex can take a lair action to cause one of the following effects; it can’t use the same effect two rounds in a row: Juiblex slimes a square area of ground it can see within the

Ancient Dragon Turtle

Monsters Fizban's Treasury of Dragons

–6);{"diceNotation":"1d6","rollType":"recharge","rollAction":"Steam Breath"}. The dragon turtle exhales steam in a 90-foot cone. Each creature in that area must make a DC 24 Constitution saving throw

following features: Shelf Floor. The sandy beaches represent the ocean floor at a depth of 100 feet, which is coated in a soft layer of fine sediment. The water around the lair is clear but dimly lit

Aspect of Tiamat

Monsters Fizban's Treasury of Dragons

Flames"}. The aspect exhales multicolored flames in a 300-foot cone. Each creature in that area must make a DC 27 Dexterity saving throw. On a failed save, the creature takes 71 (11d12) damage of a type

);{"diceNotation":"8d10", "rollType":"damage", "rollAction":"Hurl Through Avernus", "rollDamageType":"psychic"} psychic damage and be banished to Avernus (the first layer of the Nine Hells). At the start of

Hulgaz

Monsters The Book of Many Things

", "rollAction":"Brimstone Vapor"}. Hulgaz exhales a 30-foot cone of noxious, scorching-hot vapor. Each creature in that area must succeed on a DC 17 Constitution saving throw or have the poisoned condition for

":"Curdle Heart", "rollDamageType":"psychic"} psychic damage as the charmed condition applied by Hulgaz ends on it.Hulgaz is a devil who hails from the stinking swamps of Minauros, the third layer of the

Demogorgon Legacy

Monsters Out of the Abyss

in a palace called Abysm, found on a layer of the Abyss known as the Gaping Maw. Demogorgon’s lair is a place of madness and duality; the portion of the palace that lies above water takes the

, creating one or more of the following effects: The area within 6 miles of the lair becomes overpopulated with lizards, poisonous snakes, and other venomous beasts. Beasts within 1 mile of the lair become

Ring of Winter

Magic Items Tomb of Annihilation

Artus Cimber has kept this item in his possession for over a century. The Ring of Winter is a golden band that resizes to fit snugly on the finger of its wearer. A thin layer of frost coats

and use the ring to lower the temperature in a 120-foot-radius sphere centered on a point you can see within 300 feet of you. The temperature in that area drops 20 degrees per minute, to a minimum of

Orc Legacy

Species Volo's Guide to Monsters

great unknown. NISHREK AND THE ETERNAL WAR Orcs believe that if they die with honor, their spirits go to the plane of Acheron, the Infinite Battlefield — specifically the layer of Nishrek

raid just as another group returns, laden with severed heads, sacks of loot, and armfuls of food. Warriors also serve as scouts, bringing back detailed reports about the surrounding area so that the

Exploring This Level

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

Exploring This Level All location descriptions for this level are keyed to map 12. View Player Version A 2-foot-thick layer of fog covers the floor in many of the Maze Level’s tunnels and caves

; the area within the fog is heavily obscured. The fog can be cleared away by a gust of wind spell or similar magic. Fog that is cleared away returns in 1 minute. The stench of death pervades the entire level, growing stronger as the characters get closer to area 8a.

Encounter 2: Mistshore

Compendium - Sources->Dungeons & Dragons->Waterdeep: Dragon Heist

Encounter 2: Mistshore Mistshore is a run-down Dock Ward neighborhood that reeks of fish and scorched timber. A fire swept through the area a little over a year ago, and most of the buildings are now

burned-out shells with (at best) sails for roofs. Fishing poles and nets line the dock, and the 15-foot-deep water is covered by a thick layer of ice during the winter.

10. Slop Cave

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

10. Slop Cave The floor of this dark, 60-foot-high cavern is covered in a thick layer of viscous purple worm saliva. Consequently, the floor is difficult terrain. As they enter, adventurers notice

chance they attract the attention of 1d4 giant spiders from area 11. The spiders scuttle along the walls and ceiling, avoiding the gooey floor. Treasure If the adventurers take 10 minutes to search through the goo, they can retrieve a total of twenty 50 gp gems.

7. Minotaur Caves

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

7. Minotaur Caves These caves form the main living area for the minotaurs of the Maze Level. A 2-foot-thick layer of fog covers the floor throughout. 7a. Southern Cave Ceiling. The ceiling ranges in

height from 20 to 30 feet and is covered with stalactites. Minotaurs. Stalagmites and floor-to-ceiling columns of rock are scattered across the area, the fog flowing slowly around them. Seven

9. Bat Cave

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

9. Bat Cave This cave is thick with stalactites and stalagmites, and home to thousands of bats. The cavern floor is covered in a thick layer of guano, making the floor difficult terrain. The bats

spend most of their time clinging to the cavern’s 60-foot-high ceiling, but the noise of the purple worms drives them into a shrieking, flapping frenzy. Whenever a purple worm enters the area 8 (whether

Cottage Features

Compendium - Sources->Dungeons & Dragons->Dragon Delves

Cottage Features Unless otherwise specified, the cottage has the following features. Ceilings The cottage’s ceilings are 10 feet high except in the tower (area C12), where the ceiling is 20 feet high

. All ceilings are covered with a layer of sweet icing. Doors Doors throughout the cottage are thick bars of chocolate etched with wood grain designs. Each chocolate door is unlocked and as strong as

17. Midden

Compendium - Sources->Dungeons & Dragons->Infernal Machine Rebuild

17. Midden As the characters approach this area, a foul stench begins to rise. When the door is opened, read: The stench from the chamber beyond the door delivers a punch like an angered demigod. The

floor slopes toward an open pit at its center, and is covered in a layer of waste, blood, and viscera. The temple residents bring their refuse to this filthy chamber, including organic waste from

7. Vampire Haven

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

leading to this area notice a 1-inch-diameter hole bored through it a few inches above the floor. This hole allowed the ancient vampire to enter and leave its lair in mist form. 7a. Hall of Retreat If they

are forced to retreat to this hall, Uktarl (area 6) and Harria (area 8) make their final stand here, still blaming each other for their failures. This hall has the following features: Bedrolls. A

K81. Tunnel

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

the midpoint of the tunnel is a trapdoor hidden under a layer of fog. Characters can’t spot the trapdoor passively, but an active search accompanied by a successful DC 20 Wisdom (Perception) check

locates it. Unless the trapdoor is fastened shut with an iron spike or by some other means, it opens when 100 pounds of weight or more is placed on it. When the trapdoor opens, everyone who is standing on it slides into the marble chute below (area K82). The trapdoor then resets.

D7. Murky Lake

Compendium - Sources->Dungeons & Dragons->The Wild Beyond the Witchlight

D7. Murky Lake Downfall is built around a 20-foot-deep body of standing water called Murky Lake. A blanket of thick fog and a layer of pond scum cover the lake’s surface. Heavily obscured by the fog

information, the helpful bullywug suggests that they speak to King Gullop XIX and points the way to his Royal Majesty (area D6). Each lily pad can hold up to 250 pounds without sinking. Bavlorna’s Cottage. The

A Lunar Dragon's Lair

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

Frost. A thin layer of black frost covers the ground, which kills all ordinary plants growing within 6 miles of the lair if the dragon is ancient, or within 3 miles if the dragon is an adult. Haunting

adult. Moon Devils. Swirling funnels of dust and frost known as moon devils crisscross the area within 1 mile of the lair, intercepting other creatures they encounter. A moon devil is a free-willed air

Dark Duchess Locations

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

the Captain’s Cabin. The door to area D8 is covered in a thick layer of ice, which the characters need to remove if they want to get inside. Using a miner’s pick or similar tool, a character can chip

away at the ice, breaking through it after 1 hour. (The more characters who help, the more quickly the ice is removed.) The noise is loud enough to attract the ice troll in area D9. If the characters

10. Dark Pool

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

a thin layer of broken shells from strange, pale mussels, and a fishy odor hangs in the air. A passage leads south from this area, and a set of steps climbs up to the east. A sluggish stream flows

easily wade through the stream to area 18. A character who explores the pool finds an old skeleton lying on the bottom, 10 feet from the shore and under 10 feet of water. These are the remains of a human

2. Light of the Dead

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

2. Light of the Dead The earthen floors of these caves are covered by a 2-foot-thick layer of fog. 2a. Will-o’-Wisp Two columns of rock support the roof of this 15-foot-high cave, the walls of which

minotaurs. As the characters move through the cave, the will-o’-wisp flies into the tunnel that leads northwest out of this area and illuminates itself. It whispers, “Follow me!” in Elvish, trying to stay at

5. Demon's Triangle

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

5. Demon’s Triangle Floor. The earthen floor of this cavern is covered by a 2-foot-thick layer of fog. Pillars. Three natural pillars of rock support the 25-foot-high ceiling. The fog takes on a

red tinge in the area between the pillars, each of which is painted with the fearsome image of a 20-foot-tall minotaur painted in blood. Any character who succeeds on a DC 15 Intelligence (Religion

11. Crickets and Bats

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

11. Crickets and Bats Any bright light in this broad cavern alerts the demons on watch in area 17 and the drow guards in areas 18a through 18d. The cave contains the following: Fog. The floor here is

covered by a 2-foot-thick layer of fog that obscures mounds of bat guano. (If the fog is cleared away, drow, quaggoth, and giant lizard tracks can be seen in the guano. The tracks go in all

D&D Beyond

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