before being days cube rounds

Mordenkainen's Private Sanctum

Spells Player’s Handbook

spell on the same spot every day for 365 days makes the spell last until dispelled. Using a Higher-Level Spell Slot. You can increase the size of the Cube by 100 feet for each spell slot level above 4.

You make an area within range magically secure. The area is a Cube that can be as small as 5 feet to as large as 100 feet on each side. The spell lasts for the duration. When you cast the spell, you

Foresworn

Monsters Monstrous Compendium Vol. 2: Dragonlance Creatures

after 3 (1d6);{"diceNotation":"1d6", "rollType":"roll", "rollAction":"Days"} days, with all its hit points restored. Incorporeal Movement. The foresworn can move through other creatures and objects as

against thieves. If a foresworn is destroyed before it can complete its duty, it returns within a few days, its strength and purpose renewed.PoisonNecrotic; Bludgeoning, Piercing, and Slashing from

Death Tyrant Legacy

Monsters Monster Manual (2014)

the target is a Huge or larger object or creation of magical force, this ray disintegrates a 10-foot cube of it. Death Ray. The targeted creature must succeed on a DC 17 Dexterity saving throw or

cube within 120 feet of the tyrant is filled with spectral eyes and tentacles. To creatures other than the death tyrant, that area is lightly obscured and difficult terrain until initiative count 20 on

Ambitious Assassin

Monsters The Book of Many Things

, filling a 10-foot cube within 5 feet of the assassin. Each creature of the assassin’s choice in that area takes 9 (2d8);{"diceNotation":"2d8", "rollType":"damage", "rollAction":"Vanishing Escape

; the villain can’t take the same lair action two rounds in a row: Distraction. A shrill sound fills the lair. Creatures that can hear it must succeed on a DC 15 Constitution saving throw or

Lichen Lich

Monsters Candlekeep Mysteries

Legendary Resistance (3/Day). If the lich fails a saving throw, it can choose to succeed instead. Rejuvenation. If it has a phylactery, a destroyed lich gains a new body in 1d10 days, regaining all

","rollType":"damage","rollAction":"Wither","rollDamageType":"necrotic"} necrotic damage. Fire Storm (7th-Level Spell; 1/Day). The lich fills up to ten 10-foot cubes with fire. Every cube must be within

Beholder Legacy

Monsters Monster Manual (2014)

object or creation of magical force, this ray disintegrates a 10-foot cube of it. Death Ray. The targeted creature must succeed on a DC 16 Dexterity saving throw or take 55 (10d10);{"diceNotation

rounds in a row. Regional Effects A region containing a beholder’s lair is warped by the creature’s unnatural presence, which creates one or more of the following effects: Creatures

Ancient Green Dragon Legacy

Monsters Basic Rules (2014)

initiative count 20 (losing initiative ties), the dragon takes a lair action to cause one of the following effects; the dragon can’t use the same effect two rounds in a row: Grasping roots and

);{"diceNotation":"1d6","rollType":"damage","rollAction":"Thickets","rollDamageType":"piercing"} piercing damage from thorns.Each 10-foot-cube of thickets has AC 5, 30 hit points, resistance to bludgeoning

Adult Green Dragon Legacy

Monsters Basic Rules (2014)

initiative count 20 (losing initiative ties), the dragon takes a lair action to cause one of the following effects; the dragon can’t use the same effect two rounds in a row: Grasping roots and vines

);{"diceNotation":"1d6","rollType":"damage","rollAction":"Thicket","rollDamageType":"piercing"} piercing damage from thorns.Each 10-foot-cube of thickets has AC 5, 30 hit points, resistance to bludgeoning and

Geryon Legacy

Monsters Mordenkainen’s Tome of Foes

initiative count 20 (losing initiative ties), Geryon can take a lair action to cause one of the following effects; he can't use the same effect two rounds in a row: Geryon causes a blast of cold to burst

from the ground at a point he can see within 120 feet of him. The cold fills a cube, 10 feet on each side, centered on that point. Each creature in that area must succeed on a DC 21 Constitution saving

Lich Legacy

Monsters Basic Rules (2014)

":"1d10","rollType":"roll","rollAction":"Days"} days, regaining all its hit points and becoming active again. The new body appears within 5 feet of the phylactery. Spellcasting. The lich is an 18th-level

ties), the lich can take a lair action to cause one of the following magical effects; the lich can’t use the same effect two rounds in a row: The lich rolls a d8;{"diceNotation":"1d8","rollType

Imix

Monsters Princes of the Apocalypse

location. At first, effects are minor — grass turns brown, animals become listless, work and travel become very tiring. The longer Imix remains, the worse the heat becomes; after 5 days, crops

die and ponds dry up; after 10 days, unprotected livestock dies, and wells and small rivers dry up; after 20 days, large lakes and rivers are reduced in depth by 20 feet and shrink accordingly

Demogorgon

Monsters Mordenkainen Presents: Monsters of the Multiverse

rounds in a row: Darkness. Demogorgon casts the darkness spell four times, targeting different areas with the spell. Demogorgon doesn’t need to concentrate on the spells, which end on

;poisonous snakes and other venomous Beasts. If Demogorgon dies, these effects fade over the course of 1d10;{"diceNotation":"1d10", "rollType":"roll", "rollAction":"Days"} days. Cultists of Demogorgon

Riverine

Monsters Journeys through the Radiant Citadel

). Lair Actions On initiative count 20 (losing initiative ties), the riverine can take one of the following lair actions; the riverine can’t take the same lair action two rounds in a row

, the flora and fauna return to normal levels, and its river dries out over the course of 1d10;{"diceNotation":"1d10","rollType":"roll","rollAction":"Regional Effect Fade Days"} days. All other effects

Geryon

Monsters Mordenkainen Presents: Monsters of the Multiverse

following lair actions; he can’t take the same lair action two rounds in a row: Banish. Geryon casts the banishment spell. Chill Blast. Geryon causes a blast of cold to burst from the ground

at a point he can see within 120 feet of him. The cold fills a cube, 10 feet on each side, centered on that point. Each creature in that area must succeed on a DC 21 Constitution saving throw or take

Adult Blue Dragon Legacy

Monsters Basic Rules (2014)

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

thunderstorms abate within 1d10;{"diceNotation":"1d10","rollType":"roll"} days. Any sinkholes remain where they are.Lightning

Ancient Red Dragon Legacy

Monsters Basic Rules (2014)

Actions On initiative count 20 (losing initiative ties), the dragon takes a lair action to cause one of the following effects; the dragon can’t use the same effect two rounds in a row: Magma

’s lair form portals to the Elemental Plane of Fire, allowing creatures of elemental fire into the world to dwell nearby. If the dragon dies, these effects fade over the course of 1d10;{"diceNotation":"1d10","rollAction":"Days","rollType":"roll"} days.Fire

Geryon (Variant)

Monsters Mordenkainen Presents: Monsters of the Multiverse

one of the following lair actions; he can’t take the same lair action two rounds in a row: Banish. Geryon casts the banishment spell. Chill Blast. Geryon causes a blast of cold to burst from the

ground at a point he can see within 120 feet of him. The cold fills a cube, 10 feet on each side, centered on that point. Each creature in that area must succeed on a DC 21 Constitution saving throw

Adult Red Dragon Legacy

Monsters Basic Rules (2014)

initiative count 20 (losing initiative ties), the dragon takes a lair action to cause one of the following effects; the dragon can’t use the same effect two rounds in a row: Magma erupts from a

lair form portals to the Elemental Plane of Fire, allowing creatures of elemental fire into the world to dwell nearby. If the dragon dies, these effects fade over the course of 1d10;{"diceNotation":"1d10","rollAction":"Days","rollType":"roll"} days.Fire

Yarnspinner

Monsters Domains of Delight: A Feywild Accessory

Fey Rebirth. If Yarnspinner dies in his Domain of Delight, he revives with all his hit points 1d4;{"diceNotation":"1d4","rollType":"roll","rollAction":"Fey Rebirth (Days)"} days later in a safe

or surfaces. Each section has AC 12; 20 hit points; vulnerability to fire damage; and immunity to bludgeoning, poison, and psychic damage. A hut small enough to fit in a 10-foot cube. The hut comes

Ancient Blue Dragon Legacy

Monsters Basic Rules (2014)

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

thunderstorms abate within 1d10;{"diceNotation":"1d10","rollType":"roll"} days. Any sinkholes remain where they are.Lightning

Adult Time Dragon

Monsters Planescape: Adventures in the Multiverse

lair actions; the ancient or adult dragon can’t take the same lair action two rounds in a row: Temporal Fling. The dragon attempts to fling a creature it can see within 60 feet of itself forward

(your choice). Timelessness. Beasts, Humanoids, and Plants within 3 miles of the lair age only 1 year for every 10 years that pass. If the dragon dies, these effects fade over the course of 1d10;{"diceNotation":"1d10", "rollType":"roll", "rollAction":"Days"} days.

Bag of Beans Legacy

Magic Items Basic Rules (2014)

gains 5d6 temporary hit points for 1 hour. 02-10 A geyser erupts and spouts water, beer, berry juice, tea, vinegar, wine, or oil (GM's choice) 30 feet into the air for 1d12 rounds. 11-20 A

potions, while one acts as an ingested poison of the GM's choice. The tree vanishes after 1 hour. Picked fruit remains, retaining any magic for 30 days. 81-90 A nest of 1d4 + 3 eggs springs up. Any

Ogrémoch

Monsters Princes of the Apocalypse

tremors"} rounds. At first, damage is minor — broken windows, cracked plaster, items toppled off shelves. The longer Ogrémoch remains, the stronger the tremors become. After 5 days, the

tremors are strong enough to destroy flimsy structures. After 10 days, they are strong enough to destroy ordinary wooden buildings. After 20 days, they can seriously damage or destroy reinforced or

Enchanting Infiltrator

Monsters The Book of Many Things

lair actions; the villain can’t take the same lair action two rounds in a row: Distraction. A shrill sound fills the lair. Creatures that can hear it must succeed on a DC 15 Constitution saving

resistance to poison damage. If the villain dies, these effects fade over the course of 1d10;{"diceNotation":"1d10", "rollType":"roll", "rollAction":"Days"} days.

Geryon (Summoner Variant) Legacy

Monsters Mordenkainen’s Tome of Foes

initiative ties), Geryon can take a lair action to cause one of the following effects; he can't use the same effect two rounds in a row: Geryon causes a blast of cold to burst from the ground at a point

he can see within 120 feet of him. The cold fills a cube, 10 feet on each side, centered on that point. Each creature in that area must succeed on a DC 21 Constitution saving throw or take 28 (8d6

Zuggtmoy

Monsters Mordenkainen Presents: Monsters of the Multiverse

;t take the same lair action two rounds in a row: Rally Plants. Up to four Plant creatures that are friendly to Zuggtmoy and that Zuggtmoy can see can use their reactions to move up to their speed

;{"diceNotation":"1d10", "rollType":"roll", "rollAction":"Days"} days. Cultists of Zuggtmoy Zuggtmoy’s cultists are primarily mindless victims of her children’s strange spores. The spores burrow into

Claugiyliamatar

Monsters Storm King's Thunder

effect two rounds in a row: Grasping roots and vines erupt in a 20-foot radius centered on a point on the ground that the dragon can see within 120 feet of it. That area becomes difficult terrain, and

contact with the thickets or take 3 (1d6);{"diceNotation":"1d6","rollType":"damage","rollAction":"Thorns","rollDamageType":"piercing"} piercing damage from thorns.Each 10-foot-cube of thickets has AC 5

Ancient Time Dragon

Monsters Planescape: Adventures in the Multiverse

dragon can take one of the following lair actions; the ancient or adult dragon can’t take the same lair action two rounds in a row: Temporal Fling. The dragon attempts to fling a creature it can see

area take 10 minutes or 2 hours (your choice). Timelessness. Beasts, Humanoids, and Plants within 3 miles of the lair age only 1 year for every 10 years that pass. If the dragon dies, these effects fade over the course of 1d10;{"diceNotation":"1d10", "rollType":"roll", "rollAction":"Days"} days.

Arasta

Monsters Mythic Odysseys of Theros

":"recharge","rollAction":"Web of Hair"}. Arasta unleashes her hair in the form of webbing that fills a 30-foot cube next to her. The web is difficult terrain, its area is lightly obscured, and it lasts for 1

5-foot cube of the web is destroyed if it takes at least 20 fire damage from a spell or other magical source on a single turn.Arasta can take 3 legendary actions, choosing from the options below

Valindra Shadowmantle Legacy

Monsters Tomb of Annihilation

;{"diceNotation":"1d10","rollType":"roll","rollAction":"Rejuvenation"} days, regaining all its hit points and becoming active again. The new body appears within 5 feet of the phylactery. Spellcasting

one of the following magical effects; the lich can’t use the same effect two rounds in a row: The lich rolls a d8 and regains a spell slot of that level or lower. If it has no spent spell

Otherworldly Corrupter

Monsters The Book of Many Things

initiative ties) while in its lair, the villain can take one of the following lair actions; the villain can’t take the same lair action two rounds in a row: Distraction. A shrill sound fills the lair

":"roll", "rollAction":"Days"} days.PsychicChange Shape. The corrupter magically transforms into any creature that is Small or Medium, while retaining its game statistics (other than its size). This transformation ends if the corrupter is reduced to 0 hit points or uses a bonus action to end it.

Claugiyliamatar (possessed)

Monsters Divine Contention

(losing initiative ties), the dragon takes a lair action to cause one of the following effects; the dragon can’t use the same effect two rounds in a row: Grasping roots and vines erupt in a 20

thorns.Each 10-foot-cube of thickets has AC 5, 30 hit points, resistance to bludgeoning and piercing damage, vulnerability to fire damage, and immunity to psychic and thunder damage. Within 1 mile of its

Orcus

Monsters Mordenkainen Presents: Monsters of the Multiverse

’t take the same lair action two rounds in a row: Deadly Utterance. Orcus’s voice booms throughout the lair. His utterance causes one creature of his choice to be subjected to power word

", "rollType":"roll", "rollAction":"Days"} days. Cultists of Orcus Orcus grants his rank-and-file cultists the Undying Soul trait, and his cult leaders can gain the Aura of Death trait. Undying Soul

Zariel

Monsters Mordenkainen Presents: Monsters of the Multiverse

’t take the same lair action two rounds in a row: Fireball. Zariel casts the fireball spell. Infernal Illusions. Zariel casts the major image spell four times, targeting different areas with it

cleared away. If Zariel dies, these effects fade over the course of 1d10;{"diceNotation":"1d10", "rollType":"roll", "rollAction":"Days"} days. Cultists of Zariel Zariel grants special abilities to

Baphomet

Monsters Mordenkainen Presents: Monsters of the Multiverse

ties), Baphomet can take one of the following lair actions; he can’t take the same lair action two rounds in a row: Illusory Room. Baphomet casts mirage arcane, affecting a room within the lair

1d10;{"diceNotation":"1d10", "rollType":"roll", "rollAction":"Days"} days. Cultists of Baphomet Baphomet grants his cultists special abilities. All his devotees gain the Labyrinthine Recall trait

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