both before demons completely round

Book of Vile Darkness

Magic Items Dungeon Master’s Guide

cases, made notations and additions to existing text. There are places where pages are missing, torn, or covered so completely with ink, blood, and scratches that the original text can’t be

lore about demons. When you do so, you have Advantage on that check. At the DM’s discretion, the book might reveal secrets no mortal should know, such as the true names of powerful Fiends

Stinking Cloud Legacy

Spells Basic Rules (2014)

duration. Each creature that is completely within the cloud at the start of its turn must make a Constitution saving throw against poison. On a failed save, the creature spends its action that turn

retching and reeling. Creatures that don't need to breathe or are immune to poison automatically succeed on this saving throw. A moderate wind (at least 10 miles per hour) disperses the cloud after 4 rounds. A strong wind (at least 20 miles per hour) disperses it after 1 round.

Demogorgon

Monsters Mordenkainen Presents: Monsters of the Multiverse

":"necrotic"} necrotic damage. Cast a Spell (Costs 2 Actions). Demogorgon uses Spellcasting.Prince of Demons, the Sibilant Beast, and Master of the Spiraling Depths, Demogorgon is the embodiment of

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

Death Tyrant Legacy

Monsters Monster Manual (2014)

place in the initiative order and animates at the start of its next turn, provided that its body hasn’t been completely destroyed.Bite. Melee Weapon Attack: +5;{"diceNotation":"1d20+5

the next round. Walls sprout spectral appendages until initiative count 20 on the round after next. Any creature, including one on the Ethereal Plane, that is hostile to the tyrant and starts its

Demogorgon Legacy

Monsters Out of the Abyss

"} necrotic damage. Maddening Gaze. Demogorgon uses his Gaze action, and must choose either the Beguiling Gaze or the Insanity Gaze effect.Prince of Demons, the Sibilant Beast, and Master of the

Demogorgon’s cult can inspire madness in those who contemplate it for too long. All the followers of the Prince of Demons go mad, sooner or later.Demogorgon’s Lair Demogorgon makes his lair

Drelnza

Monsters Quests from the Infinite Staircase

the target, or takes a bonus action to end the effect.Drelnza can take up to three reactions per round but only one per turn. Move. Immediately after a creature Drelnza can see ends its turn

Iggwilv’s disappearance, Drelnza acted as general to a battalion of demons bound to serve the Witch Queen. Armed with her sentient longsword, Heretic, Drelnza terrorized the people of Perrenland.Necrotic

Lich Legacy

Monsters Basic Rules (2014)

. Everything about a lich’s lair reflects its keen mind and wicked cunning, including the magic and mundane traps that secure it. Undead, constructs, and bound demons lurk in shadowy recesses

, the lich takes half the damage (rounded down), and the target takes the remaining damage. This tether lasts until initiative count 20 on the next round or until the lich or the target is no longer in

Book of Vile Darkness Legacy

Magic Items Dungeon Master’s Guide (2014)

and additions to existing text. There are places where pages are missing, torn, or covered so completely with ink, blood, and scratches that the original text can’t be divined. Nature can’t

, such as lore about demons. When you do so, double your proficiency bonus on that check. Dark Speech. While you carry the Book of Vile Darkness and are attuned to it, you can use an action to recite

Drow Matron Mother

Monsters Mordenkainen Presents: Monsters of the Multiverse

, with demons, spiders, and conscripted soldiers positioned between them and their enemies. Although matron mothers command great power, that power depends on maintaining the Spider Queen’s

any potential threats against her or her retinue. Until initiative count 20 of the next round, hostile creatures within the lair can’t become hidden from her and gain no benefit from the

Exethanter

Monsters Curse of Strahd

the magic and mundane traps that secure it. Undead, constructs, and bound demons lurk in shadowy recesses, emerging to destroy those who dare to disturb the lich’s work. A lich encountered in

remaining damage. This tether lasts until initiative count 20 on the next round or until Exethanter or the target is no longer in the Exethanter’s lair. Exethanter calls forth the spirits of

Arcturia

Monsters Waterdeep: Dungeon of the Mad Mage

and traps. Everything about a lich’s lair reflects its keen mind and wicked cunning, including the magic and mundane traps that secure it. Undead, constructs, and bound demons lurk in shadowy

takes the remaining damage. This tether lasts until initiative count 20 on the next round or until the lich or the target is no longer in the lich’s lair. The lich calls forth the spirits of

Valindra Shadowmantle Legacy

Monsters Tomb of Annihilation

reflects its keen mind and wicked cunning, including the magic and mundane traps that secure it. Undead, constructs, and bound demons lurk in shadowy recesses, emerging to destroy those who dare to disturb

initiative count 20 on the next round or until the lich or the target is no longer in the lich’s lair. The lich calls forth the spirits of creatures that died in its lair. These apparitions

Book of Vile Darkness (Variant)

Magic Items Keys from the Golden Vault

and additions to existing text. There are places where pages are missing, torn, or covered so completely with ink, blood, and scratches that the original text can’t be divined. Nature can’t

demons. When you do so, double your proficiency bonus on that check. Dark Speech. While you carry the Book of Vile Darkness and are attuned to it, you can use an action to recite words from its pages in a

Other Demons

Compendium - Sources->Dungeons & Dragons->Mordenkainen's Tome of Foes

Other Demons Demons of sufficient cunning and power can bestow boons, using the boons’ recipients as pawns. A demon can grant a special trait based on its type, as shown below. Balor Fiery Soul. This

can perfectly recall any path it has traveled. Marilith Serpentine Reaction. This creature can take an extra reaction each round, but this reaction can be used only to make an opportunity attack. Nalfeshnee Guarded Mind. This creature is immune to the frightened condition.

Stinking Cloud

Compendium - Sources->Dungeons & Dragons->Basic Rules (2014)

creature that is completely within the cloud at the start of its turn must make a Constitution saving throw against poison. On a failed save, the creature spends its action that turn retching and

reeling. Creatures that don’t need to breathe or are immune to poison automatically succeed on this saving throw. A moderate wind (at least 10 miles per hour) disperses the cloud after 4 rounds. A strong wind (at least 20 miles per hour) disperses it after 1 round.

Adult Topaz Dragon

Monsters Fizban's Treasury of Dragons

","rollType":"roll","rollAction":"Adventure Hook"} Adventure Hook 1 A pirate ship is found floating on the open sea, the bodies of the crew completely desiccated. The only clue to what happened is a

one creature within range of the dragon’s telepathy. The creature must succeed on a DC 15 Wisdom saving throw or be charmed by the dragon until initiative count 20 on the next round. A creature

A Flight of Demons

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

A Flight of Demons During a guard change, the prisoners hear a horrible droning buzz echoing through the cavern, followed by inhuman shrieking. Alarm horns sound out as four chasme demons pursue a

pair of vrock demons into the cavern from the northern passage. The demons swoop and buzz around, initially ignoring other creatures as both groups savagely assault each other. The demons’ arrival

Stinking Cloud

Compendium - Sources->Dungeons & Dragons->Player's Handbook (2014)

creature that is completely within the cloud at the start of its turn must make a Constitution saving throw against poison. On a failed save, the creature spends its action that turn retching and

reeling. Creatures that don’t need to breathe or are immune to poison automatically succeed on this saving throw. A moderate wind (at least 10 miles per hour) disperses the cloud after 4 rounds. A strong wind (at least 20 miles per hour) disperses it after 1 round.

Gideon Lightward

Compendium - Sources->Dungeons & Dragons->Baldur's Gate: Descent into Avernus

months leading up to the fall of Elturel. The devils posed as angels, offering Gideon increased power if he would dedicate himself to fighting the ever-present threat of demons. Gideon slowly gave up his

Avernus, but the priest rose as an undead creature. Even as an undead, Gideon remains his mistress’s most loyal servant in Elturel. He sees his cause as a noble one — fighting the demons whose chaos

Ancient Topaz Dragon

Monsters Fizban's Treasury of Dragons

;{"diceNotation":"1d8","rollType":"roll","rollAction":"Adventure Hook"} Adventure Hook 1 A pirate ship is found floating on the open sea, the bodies of the crew completely desiccated. The only clue

the next round. A creature charmed in this way obeys to the best of its ability any command the dragon issues that isn’t directly harmful to the creature. Cancellation. The dragon chooses an

Demon Showdown

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

of the remaining demon lords. If there aren’t enough demon lords for all the players, you can use balors or other powerful demons to round out their numbers. The players control the demons in their

Demon Showdown Ideally, the adventurers and their allies remain hidden from the battling demons, letting them fight it out among themselves. Still, there are challenges for the characters to overcome

Haruman's Arrival

Compendium - Sources->Dungeons & Dragons->Baldur's Gate: Descent into Avernus

Haruman’s Arrival If the characters free Jander or any of his companions, their bodies crumble to dust in grateful release. In response, twenty stirges attack the group. When the second round of

, she says that two sites in Avernus seem important to finding the Citadel: a place where demons manifest (see “Spawning Trees”), and another where demons are destroyed (see “Demon Zapper”). Lulu has no

Event 2: Field of Flames

Compendium - Sources->Dungeons & Dragons->Baldur's Gate: Descent into Avernus

battlefield, with each round of checks increasing in difficulty — DC 15, DC 17, and DC 19. Every time the group fails a check, each character must succeed on a DC 15 Constitution saving throw or take

while swinging a huge flaming mace in the other. The pit fiend is beset on all sides by six hulking, froglike demons that croak vile epithets as they tear the pit fiend’s flesh with their claws

Merrow

Compendium - Sources->Dungeons & Dragons->Monster Manual (2014)

, fighting for their lives as the Abyss warped them completely, transforming them into hulking, evil monstrosities. Thus, the first merrow were born. Coastal Bullies. Whenever an opportunity presents

itself, the Prince of Demons sends merrow back to the Material Plane to wreak havoc in the oceans. The merrow are bullies, attacking all creatures smaller and weaker than themselves. Merrow dwell in

A Lich's Lair

Compendium - Sources->Dungeons & Dragons->Monster Manual (2014)

powerful guardians and traps. Everything about a lich’s lair reflects its keen mind and wicked cunning, including the magic and mundane traps that secure it. Undead, constructs, and bound demons lurk in

remaining damage. This tether lasts until initiative count 20 on the next round or until the lich or the target is no longer in the lich’s lair. The lich calls forth the spirits of creatures that

The Hidden Shrine of Tamoachan

Compendium - Sources->Dungeons & Dragons->Tales from the Yawning Portal->a3

easily defended glade with an artesian spring. Most of the city is toppled and almost completely covered in undergrowth. Intruders who enter the ruins will discover that the ancient streets now serve as

an elven cult, possibly connected to the line of Vol. Alternatively, Tamoachan could be a truly primeval location in Q’barra, and the Olman “gods” actually fiends from the Age of Demons. Forgotten

Abyssal Prisons

Compendium - Sources->Dungeons & Dragons->Tales from the Yawning Portal->a5

Abyssal Prisons Originally an area containing summoning traps, this sector has been changed into a place for confining demons. Thayans break the will of imprisoned fiends and bind them into service

dimensional barriers that prevent fiends from teleporting or summoning other demons within the sector. Fiendish Arena In this zone, a vampire named Issem culls the weakest demons using arena combat. When

11. Olhydra's Canal

Compendium - Sources->Dungeons & Dragons->Locathah Rising

, this one has been cleared completely of debris, forming a seemingly easy path forward. Unfortunately, it’s a trap. While there are no outward signs for characters to notice that might give this fact

) check to escape the grapple. Unrestrained characters in the area must save against this effect at the beginning of their turn each round. As the characters are being grappled, a freezing fog fills the

The Oozing Temple

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

. A lit torch or its equivalent uses up air as a character does. Briefer but hotter magical effects consume 1 hour of air per die of fire damage per round. For example, a fireball spell that deals 8d6

tunnels and chambers are filling with water flowing in from area 6. The water rises at a rate of 1 foot per hour, meaning most of the tunnels and chambers will be completely flooded within 10 hours. Areas

Octopus Attack

Compendium - Sources->Dungeons & Dragons->Ghosts of Saltmarsh

to the top deck and jump into the water; then, once the rowboat arrives, they try to seize it and flee. The maw demons in area 6 break free on round 2 and rush to the upper deck. They attack other

creatures indiscriminately, caring only about spreading chaos. Each one assaults the closest creature that is not a demon. The vermin aboard ship flee to the upper decks, reaching area 1 by round 3. They attack the characters on sight and fight to the death.

Adult Sapphire Dragon

Monsters Fizban's Treasury of Dragons

regularly confers with a plane-hopping archmage regarding the dragon’s ongoing dreams of other worlds and other lives. 4 A drow priestess of Lolth and several yochlol demons have been ordered

succeed on a DC 15 Wisdom saving throw or be charmed by the dragon until initiative count 20 on the next round. A creature charmed in this way obeys to the best of its ability any command the dragon

Idyllglen Events

Compendium - Sources->Dungeons & Dragons->Baldur's Gate: Descent into Avernus

Summerlast. Their armor is covered in the ichor of Yeenoghu’s demons. The ichor has driven the guards mad, making them hunger for humanoid flesh. When they notice the characters, the guards attack. If a

battling demons in the fields when they suddenly felt an overwhelming desire to consume humanoid flesh. These guards are eager to return to the battle in the fields, disappearing as they pass through the

Goristro

Compendium - Sources->Dungeons & Dragons->Monster Manual

Goristro Demon of Disaster Habitat: Planar (Abyss); Treasure: Armaments Ben Wootten Terrifying in scale and overwhelming power, goristros are giant demons capable of bringing cities to ruin. These

demons embody senseless anarchy and nihilistic destruction, and they take special offense at creatures or structures that rival them in size. Castles, towers, giants, and beasts of war are all common

Zariel's War

Compendium - Sources->Dungeons & Dragons->Baldur's Gate: Descent into Avernus

light with a completely transformed perspective. INFERNAL ORDER OF BATTLE Whereas demons attack in disorganized mobs, relying on shock and overwhelming numbers to carry the day, devils organize into

Inside the Cult

Compendium - Sources->Dungeons & Dragons->Guildmasters' Guide to Ravnica

streak of cruelty. The Cult of Rakdos was originally recognized as a guild as part of an effort to channel the impulses of demons, giants, ogres, and humans into an acceptable direction. That effort

has never been completely successful. Now, as tension builds in Ravnica and several guilds attempt to crack down on chaos and criminal activity, the Rakdos cult reacts to this building pressure with

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