cast were regional

Diderius

Monsters Tyranny of Dragons

, any non-undead creature that tries to cast a spell of 4th level or lower in the mummy lord’s lair is wracked with pain. The creature can choose another action, but if it tries to cast the spell

, it must make a DC 16 Constitution saving throw. On a failed save, it takes 1d6 necrotic damage per level of the spell, and the spell has no effect and is wasted. Regional Effects A mummy lord

Halaster Blackcloak

Monsters Waterdeep: Dungeon of the Mad Mage

attunement). It can be used as an arcane focus. Whoever is attuned to the blast scepter gains resistance to fire and lightning damage and can, as an action, use it to cast thunderwave as a 4th-level spell

with spell attacks). He can cast disguise self and invisibility at will. He can cast fly and lightning bolt once each without expending a spell slot, but can’t do so again until he finishes a

Orcus Legacy

Monsters Out of the Abyss

Wand of Orcus. The wand has 7 charges, and any of its properties that require a saving throw have a save DC of 18. While holding it, Orcus can use an action to cast animate dead, blight, or speak

with dead. Alternatively, he can expend 1 or more of the wand’s charges to cast one of the following spells from it: circle of death (1 charge), finger of death (1 charge), or power word kill (2

Riverine

Monsters Journeys through the Radiant Citadel

from—some are lethargic while others are wild and reckless.A Riverine’s Lair Some riverines enjoy reverence akin to worship. Their likenesses are cast as statues and housed in temples

Fury","rollDamageType":"cold"} cold damage. Regional Effects The region containing a riverine’s lair flourishes under the magic of the riverine’s presence, which creates one or more of

Gorka Tharn

Monsters Waterdeep: Dungeon of the Mad Mage

next round. Until initiative count 20 on the next round, any non-undead creature that tries to cast a spell of 4th level or lower in the mummy lord’s lair is wracked with pain. The creature

can choose another action, but if it tries to cast the spell, it must make a DC 16 Constitution saving throw. On a failed save, it takes 1d6;{"diceNotation":"1d6","rollType":"damage","rollAction":"Lair

Valin Sarnaster

Monsters Candlekeep Mysteries

, any non-undead creature that tries to cast a spell of 4th level or lower in Valin’s lair is wracked with pain. The creature can choose another action, but if it tries to cast the spell, it must

the spell, and the spell has no effect and is wasted. Regional Effects Valin’s tomb is warped in any of the following ways by the creature’s dark presence: Food instantly molders

Slarkrethel

Monsters Storm King's Thunder

, sending 2/day each: control weather (cast as 1 action), fly, ice storm 1/day each: arcane eye, chain lightning, feeblemind, foresight, locate creature, mass suggestion, nondetection, power word

kill, scrying (cast as 1 action), sequester, telekinesis, teleportSlarkrethel can take 3 legendary actions, choosing from the options below. Only one legendary action option can be used at a time and

Graz'zt Legacy

Monsters Out of the Abyss

. Any equipment he is wearing or carrying isn’t transformed. Innate Spellcasting. Graz’zt’s spellcasting ability is Charisma (spell save DC 23). He can innately cast the following

glance of his burning eyes, promising a mixture of pleasure and pain. A subtle wrongness pervades his beauty, from the cruel cast of his features to the six fingers on each hand and six toes on each

Baernaloth

Monsters Planescape: Adventures in the Multiverse

", "rollAction":"Consume Suffering"} hit points. Discover Secrets. The baernaloth uses Spellcasting to cast detect thoughts. A creature targeted by the spell cast in this way takes 13 (3d8);{"diceNotation":"3d8

on a failed save, or half as much damage on a successful one. Regional Effects A region containing a baernaloth’s lair becomes warped by the creature’s unnatural presence, which creates

Zargon the Returner

Monsters Quests from the Infinite Staircase

. On a failed save, the creature takes 6 (1d12);{"diceNotation":"1d12", "rollType":"damage", "rollAction":"Defiant Essence", "rollDamageType":"force"} force damage, and the spell it cast fails and is

Asmodeus’ might. No matter what blistering wrath Asmodeus brought to bear on Zargon, the aberration continually re-formed from its horn. Finally, Asmodeus cast Zargon’s horn from the Nine

Demogorgon Legacy

Monsters Out of the Abyss

Innate Spellcasting. Demogorgon’s spellcasting ability is Charisma (spell save DC 23). Demogorgon can innately cast the following spells, requiring no material components: At will: detect

doesn’t need to concentrate on the spells, which end on initiative count 20 of the next round. Regional Effects The region containing Demogorgon’s lair is warped by his magic

Fraz-Urb'luu Legacy

Monsters Out of the Abyss

Innate Spellcasting. Fraz-Urb’luu’s spellcasting ability is Charisma (spell save DC 23). Fraz-Urb’luu can innately cast the following spells, requiring no material components: At

take 33 (6d10) psychic damage. Regional Effects The region containing Fraz-Urb’luu’s lair is warped by his magic, creating one or more of the following effects: Intelligent

Ogrémoch

Monsters Princes of the Apocalypse

innately cast the following spells, requiring no material components: At will: meld into stone, move earth, wall of stone Legendary Resistance (3/Day). If Ogrémoch fails a saving throw, he can

other than Ogrémoch on the ground in the area must succeed on a DC 15 Strength or Dexterity saving throw (target’s choice) or be knocked prone. Regional Effects The region containing

Aurnozci

Monsters The Book of Many Things

. Tail. Aurnozci makes one Tail attack. Cast a Spell (Costs 2 Actions). Aurnozci uses Spellcasting. Conflagration (Costs 2 Actions). Flames momentarily surround Aurnozci. Each creature within 15

damage on a successful one. A creature must also make this saving throw when it enters the sphere’s area for the first time on a turn or starts its turn there. Regional Effects Xulregg is an

Zuggtmoy Legacy

Monsters Out of the Abyss

Innate Spellcasting. Zuggtmoy’s spellcasting ability is Charisma (spell save DC 22). She can innately cast the following spells, requiring no material components: At will: detect magic, locate

lair, instead of on herself. Regional Effects The region containing Zuggtmoy’s lair is warped by her magic, creating one or more of the following effects: Molds and fungi grow on surfaces

Dyrrn

Monsters Eberron: Rising from the Last War

flesh twists in alien ways. The creature has disadvantage on attack rolls, its speed is reduced by half, and if it tries to cast a spell, it must first succeed on a DC 15 Intelligence check or the spell

each time it fails the saving throw for this lair action. The target dies if its Intelligence score is reduced to 0. The reduction lasts until the target finishes a short or long rest. Regional

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

that is no longer in any dimension than 100 feet. The effect ends on the next initiative count 20. Regional Effects The region containing Baphomet’s lair is warped by his magic, creating one or

Olhydra

Monsters Princes of the Apocalypse

spellcasting ability is Charisma (spell save DC 20, +12;{"diceNotation":"1d20+12","rollType":"to hit","rollAction":"Innate Spellcasting"} to hit with spell attacks). She can innately cast the following

":"3d6","rollType":"damage","rollAction":"freezing cloud","rollDamageType":"cold"} cold damage. Regional Effects Olhydra’s presence in an elemental node creates a number of widespread effects

Yan-C-Bin

Monsters Princes of the Apocalypse

ability is Charisma (spell save DC 20, +12;{"diceNotation":"1d20+12","rollType":"to hit","rollAction":"Innate Spellcasting"} to hit with spell attacks). He can innately cast the following spells

or be blinded until initiative count 20 on the next round. Regional Effects When Yan-C-Bin inhabits an elemental node, the air is at his command. Temperatures fluctuate from blistering hot to

Yeenoghu Legacy

Monsters Out of the Abyss

). He can innately cast the following spells, requiring no material components: At will: detect magic, spiritual weapon (8th-level spell, 4d8 + 2;{"diceNotation":"4d8+2","rollType":"damage

, causing them to have advantage on melee weapon attack rolls and causing attack rolls to have advantage against them. Regional Effects The region containing Yeenoghu’s lair is warped by his

Orcus

Monsters Mordenkainen Presents: Monsters of the Multiverse

. Master of Undeath. Orcus can cast animate dead (at will) and create undead (3/day). He chooses the level at which the spells are cast, and the creatures created by them remain under his control

indefinitely. Additionally, he can cast create undead even when it isn’t night. Special Equipment. Orcus wields the Wand of Orcus.Multiattack. Orcus makes three Wand of Orcus, Tail, or Necrotic Bolt

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

hitting him with an attack), there is a 50 percent chance that the illusory duplicate is affected, not Demogorgon, in which case the illusion disappears. Regional Effects The region containing Demogorgon

Lhammaruntosz

Monsters Sleeping Dragon’s Wake

;s spellcasting ability is Charisma (spell save DC 17). She can innately cast the following spells, requiring no material components: 1/day each: create food and water, detect thoughts, fog cloud

its eggs. Lair Actions On initiative count 20 (losing initiative ties), the dragon takes a lair action to cause one of the following effects: The dragon creates fog as though it had cast the fog

Stalagma Steelshadow

Monsters Waterdeep: Dungeon of the Mad Mage

dragon creates fog as if it had cast the fog cloud spell. The fog lasts until initiative count 20 on the next round. A blisteringly cold wind blows through the lair near the dragon. Each creature within

flames, such as lanterns, have a 50 percent chance of being extinguished. Regional Effects The region containing a legendary Steel dragon’s lair is warped by the dragon’s magic, which

Belashyrra

Monsters Eberron: Rising from the Last War

succeed on a DC 22 Intelligence saving throw or take 36 (8d8);{"diceNotation":"8d8","rollType":"damage","rollDamageType":"psychic"} psychic damage and be unable to cast spells or activate magic items

on itself on a success. If a creature’s saving throw is successful or the effect ends for it, the creature is immune to this lair action for the next 24 hours. Regional Effects. Belashyrra

Umbraxakar

Monsters Waterdeep: Dungeon of the Mad Mage

eggs. Lair Actions On initiative count 20 (losing initiative ties), the dragon takes a lair action to cause one of the following effects: The dragon creates fog as though it had cast the fog

until the end of its next turn. Regional Effects The region containing a legendary bronze dragon’s lair is warped by the dragon’s magic. Once per day, the dragon can alter the weather

Morkoth

Monsters Mordenkainen Presents: Monsters of the Multiverse

lair actions: Cast a Spell. The morkoth casts darkness, dispel magic, or misty step, using Intelligence as its spellcasting ability and without expending a spell slot. Hypnotize. The morkoth uses its

Hypnosis action, originating at a point within 120 feet of itself. It doesn’t need to see the effect’s point of origin. Regional Effects The island surrounding a morkoth’s lair is

Imix

Monsters Princes of the Apocalypse

hit with spell attacks). He can innately cast the following spells, requiring no material components: At will: fireball, wall of fire 3/day each: fire storm, haste, teleport Magic Resistance. Imix

":"roll","rollAction":"Destruction Chance"} that any container of fluid held or carried by an affected creature (for example, a magic potion) is destroyed. Regional Effects The region containing an

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

Auril (First Form)

Monsters Icewind Dale: Rime of the Frostmaiden

). She can innately cast the following spells, requiring no material components: At will: chromatic orb (cold orb only; see “Actions” below), detect magic, misty step 2/day each: control

island, let alone how to reach it. See chapter 5 for information about the regional effects that encompass the island. While she’s on the island, the Frostmaiden can take one of the following

Klauth

Monsters Storm King's Thunder

, cloudkill, disintegrate, etherealness, find the path (cast as 1 action), greater invisibility, haste, locate object, mass suggestion, mirage arcane (cast as 1 action), prismatic sprayKlauth can take 3

must succeed on a DC 13 Constitution saving throw or be poisoned until the end of its turn. While poisoned in this way, a creature is incapacitated. Regional Effects The region containing a

Claugiyliamatar

Monsters Storm King's Thunder

: blight, legend lore (cast as 1 action), locate creature, pass without trace, protection from energy, true seeingClaugiyliamatar can take 3 legendary actions, choosing from the options below. Only one

reaches the forest floor carries an emerald green cast, and every sound seems muffled. At the center of its forest, a green dragon chooses a cave in a sheer cliff or hillside for its lair, preferring an

Hierophant Medusa

Monsters The Book of Many Things

Devotion’s Call (1/Day). The medusa can cast the Resurrection spell, requiring no material components and using Wisdom as the spellcasting ability. Legendary Resistance (4/Day). If the medusa

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

Zorak Lightdrinker

Monsters Waterdeep: Dungeon of the Mad Mage

its coffin in an underground crypt or vault guarded by vampire spawn or other loyal creatures of the night. Regional Effects The region surrounding a vampire's lair is warped by the creature's

stems and branches become twisted and thorny. Shadows cast within 500 feet of the lair seem abnormally gaunt and sometimes move as though alive. A creeping fog clings to the ground within 500 feet of the

Graz'zt

Monsters Mordenkainen Presents: Monsters of the Multiverse

his beauty, from the cruel cast of his features to the six fingers on each hand and six toes on each foot. Graz’zt surrounds himself with the finest of things and the most attractive of servants

have disadvantage on Dexterity (Stealth) checks made to hide. Regional Effects The region containing Graz’zt’s lair is warped by his magic, creating one or more of the following effects

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