before both days continual rating

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

, emerging to destroy those who dare to disturb the lich’s work. A lich encountered in its lair has a challenge rating of 22 (41,000 XP). Lair Actions On initiative count 20 (losing initiative

Beholder Legacy

Monsters Monster Manual (2014)

closing to melee range. A beholder encountered in its lair has a challenge rating of 14 (11,500 XP). Lair Actions When fighting inside its lair, a beholder can invoke the ambient magic to take lair

natural surfaces and to nonmagical objects that aren’t on anyone’s person. If the beholder dies, these effects fade over the course of 1d10;{"diceNotation":"1d10","rollAction":"Days","rollType":"roll"} days.

Storm Giant Quintessent

Monsters Mordenkainen Presents: Monsters of the Multiverse

their banks; snow, dust, or sand forms deep drifts or dunes. Lightning. Flashes of lightning and peals of thunder are continual, day and night, within 5 miles of the lair. Winds. High wind blows within

effects end immediately. Rain, snow, and blowing dust abate gradually within 1d8;{"diceNotation":"1d8", "rollType":"roll", "rollAction":"Days"} days.Lightning, ThunderCold; Bludgeoning, Piercing, and Slashing from Nonmagical Attacks

Riverine

Monsters Journeys through the Radiant Citadel

along the river’s path—such as its source or a significant waterfall—can also be used as lairs by a riverine. A riverine encountered in its lair has a challenge rating of 13 (10,000 XP

, 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

Ancient Brass Dragon Legacy

Monsters Basic Rules (2014)

damage or someone uses an action to wake it. Change Shape. The dragon magically polymorphs into a humanoid or beast that has a challenge rating no higher than its own, or back into its true form. It

presence and location. If the dragon dies, the tracks fade in 1d10;{"diceNotation":"1d10","rollType":"roll"} days, but the other effects fade immediately.Fire

Adult Silver Dragon Legacy

Monsters Basic Rules (2014)

turns, ending the effect on itself on a success. Change Shape. The dragon magically polymorphs into a humanoid or beast that has a challenge rating no higher than its own, or back into its true form

its allies. Such creatures descend at a rate of 60 feet per round and take no falling damage. Given days or longer to work, the dragon can make clouds and fog within its lair as solid as stone, forming

Ambitious Assassin

Monsters The Book of Many Things

;s a hidden thieves’ guildhall or a lavish manse. The lair is filled with clever defenses to disorient, weaken, and kill intruders. The villain’s challenge rating increases while the

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

Enchanting Infiltrator

Monsters The Book of Many Things

’s a hidden thieves’ guildhall or a lavish manse. The lair is filled with clever defenses to disorient, weaken, and kill intruders. The villain’s challenge rating increases while the

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

Ancient Silver Dragon Legacy

Monsters Basic Rules (2014)

of its turns, ending the effect on itself on a success. Change Shape. The dragon magically polymorphs into a humanoid or beast that has a challenge rating no higher than its own, or back into its

’s or its allies. Such creatures descend at a rate of 60 feet per round and take no falling damage. Given days or longer to work, the dragon can make clouds and fog within its lair as solid as stone

Adult Time Dragon

Monsters Planescape: Adventures in the Multiverse

their utmost to preserve these historical sites. A time dragon’s insatiable desire for knowledge means it’s likely to have more than one such lair. The challenge rating of an ancient time

(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.

Death Tyrant Legacy

Monsters Monster Manual (2014)

it contains more trappings of death and decay. A death tyrant encountered in its lair has a challenge rating of 15 (13,000 XP). Lair Actions When fighting inside its lair, a death tyrant can invoke

’s lair, roll a d20 for that creature. On a roll of 10 or lower, the creature is subjected to one random eye ray of the tyrant. If the death tyrant dies, these effects fade over the course of 1d10;{"diceNotation":"1d10","rollAction":"Days","rollType":"roll"} days.Poison

Ancient Copper Dragon Legacy

Monsters Basic Rules (2014)

at the end of each of its turns, ending the effect on itself with a successful save. Change Shape. The dragon magically polymorphs into a humanoid or beast that has a challenge rating no higher than

giggling. Even serious matters suddenly seem amusing. If the dragon dies, the magic carvings fade over the course of 1d10;{"diceNotation":"1d10","rollType":"roll"} days. The other effects end immediately.Acid

Ancient Time Dragon

Monsters Planescape: Adventures in the Multiverse

challenge rating of an ancient or adult time dragon;adult time dragon increases by 1 when it’s encountered in its lair. Lair Actions On initiative count 20 (losing initiative ties), the

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.

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

the lich’s work. A lich encountered in its lair has a challenge rating of 22 (41,000 XP). Lair Actions On initiative count 20 (losing initiative ties), the lich can take a lair action to cause

Otherworldly Corrupter

Monsters The Book of Many Things

kill intruders. The villain’s challenge rating increases while the villain is in this lair: Otherworldly Corrupter. Challenge 18 (20,000 XP) Lair Actions On initiative count 20 (losing

":"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.

Yeenoghu

Monsters Mordenkainen Presents: Monsters of the Multiverse

), and there are few structures or signs of civilization on his layer of the Abyss. The challenge rating of Yeenoghu is 25 (75,000 XP) when he’s encountered in his lair. Lair Actions On

Yeenoghu dies, these effects fade over the course of 1d10;{"diceNotation":"1d10", "rollType":"roll", "rollAction":"Days"} days. Cultists of Yeenoghu Yeenoghu grants special abilities to his cultists. His

Arcturia

Monsters Waterdeep: Dungeon of the Mad Mage

":"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. The lich is an 18th

recesses, emerging to destroy those who dare to disturb the lich’s work. A lich encountered in its lair has a challenge rating of 22 (41,000 XP). Lair Actions On initiative count 20 (losing

Lorthuun

Monsters Out of the Abyss

lair has a challenge rating of 14 (11,500 XP). Lair Actions When fighting inside its lair, a beholder can invoke the ambient magic to take lair actions. On initiative count 20 (losing initiative

before, harmless slime might coat a statue, and so on. These effects apply only to natural surfaces and to nonmagical objects that aren't on anyone's person. If the beholder dies, these effects fade over the course of 1d10;{"diceNotation":"1d10","rollType":"roll"} days.

Exethanter

Monsters Curse of Strahd

":"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. Exethanter is an

its lair has a challenge rating of 22 (41,000 XP). Lair Actions On initiative count 20 (losing initiative ties), Exethanter can take a lair action to cause one of the following magical effects

Stalagma Steelshadow

Monsters Waterdeep: Dungeon of the Mad Mage

each of its turns, ending the effect on itself on a success. Change Shape. The dragon magically polymorphs into a humanoid or beast that has a challenge rating no higher than its own, or back into

60 feet per round and take no falling damage. Given days or longer to work, the dragon can make clouds and fog within its lair as solid as stone, forming structures and other objects as it wishes

Veiled Presence

Monsters The Book of Many Things

filled with clever defenses to disorient, weaken, and kill intruders. The villain’s challenge rating increases while the villain is in this lair: Veiled Presence. Challenge 22 (41,000 XP

members of the villain’s organization deal poison damage while within 3 miles of the lair, they ignore the target’s resistance to poison damage. If the villain dies, these effects fade over the course of 1d10;{"diceNotation":"1d10", "rollType":"roll", "rollAction":"Days"} days.Necrotic, Radiant

Demilich (Variant) Legacy

Monsters Monster Manual (2014)

be permanently destroyed. Its skull reforms after 1d10;{"diceNotation":"1d10", "rollType":"roll", "rollAction":"Enduring Existence"} days, restoring the creature to its wretched state. If it has the

lair has a challenge rating of 23 (50,000 XP). Lair Actions On initiative count 20 (losing initiative ties), the demilich rolls a d20;{"diceNotation":"1d20","rollType":"roll","rollAction":"Take Lair

Adult Amethyst Dragon

Monsters Fizban's Treasury of Dragons

","rollType":"roll","rollAction":"Days"} days if the dragon dies. Upper Caves. The dragon most often sleeps in the largest upper chamber of the lair. The dragon’s hoard is divided between that

their lairs. The challenge rating of a legendary amethyst dragon increases by 1 when it’s encountered in its lair. Lair Actions On initiative count 20 (losing initiative ties), the dragon can

Ancient Amethyst Dragon

Monsters Fizban's Treasury of Dragons

. This property of the lair vanishes after 1d10;{"diceNotation":"1d10","rollType":"roll","rollAction":"Days"} days if the dragon dies. Upper Caves. The dragon most often sleeps in the largest upper

magical mobility, using flight and teleportation to navigate obstacles in their lairs. The challenge rating of a legendary amethyst dragon increases by 1 when it’s encountered in its lair. Lair

Fraz-Urb'luu Legacy

Monsters Out of the Abyss

hooks. Corkscrew towers loom above twisted domes and vast amphitheaters, just a few examples of the impossible architecture that fills the city. The challenge rating of Fraz-Urb’luu is 24

’luu dies, these effects fade over the course of 1d10;{"diceNotation":"1d10","rollType":"roll"} days. Madness of Fraz-Urb’luu If a creature goes mad in Fraz-Urb’luu’s lair or

Aurnozci

Monsters The Book of Many Things

chapter 20 for details about this realm. The challenge rating of Aurnozci is 23 (50,000 XP) when it’s encountered in its lair. Lair Actions On initiative count 20 (losing initiative ties

conditions. If Aurnozci dies, these effects fade over the course of 1d10;{"diceNotation":"1d10", "rollType":"roll", "rollAction":"Days"} days.Acid, Fire, Poison; Bludgeoning, Piercing, and Slashing from Nonmagical AttacksCold, Lightning

Sul Khatesh

Monsters Eberron: Rising from the Last War

polymorphs into a humanoid, beast, or giant that has a challenge rating no higher than her own, or back into her true form. She reverts to her true form if she dies. Any equipment she is wearing or

creature within 30 feet of it. A creature that fails the saving throw but can't expend a spell slot is instead stunned until the end of its next turn.Overlords In the first days of the world, the

Juiblex

Monsters Mordenkainen Presents: Monsters of the Multiverse

ooze at Juiblex’s command. Juiblex’s challenge rating is 24 (62,000 XP) when encountered in its lair. Lair Actions On initiative count 20 (losing initiative ties), Juiblex can take one

, which is slick and sticks to anything that touches it. If Juiblex dies, these effects fade over the course of 1d10;{"diceNotation":"1d10","rollType":"roll"} days. Cultists of Juiblex The Faceless

Rak Tulkhesh

Monsters Eberron: Rising from the Last War

Tulkhesh magically polymorphs into a humanoid, beast, or giant that has a challenge rating no higher than his own, or back into his true form. He reverts to his true form if he dies. Any equipment he

roll.Overlords In the first days of the world, the children of Khyber rose from the darkness to reign over Eberron. The greatest among them were the overlords, who held dominion over a world of fear, war, and

Fraz-Urb'luu

Monsters Mordenkainen Presents: Monsters of the Multiverse

topped with razors and hooks. Corkscrew towers loom above twisted domes and vast amphitheaters, forming a surreal and disorienting cityscape. The challenge rating of Fraz-Urb’luu is 24 (62,000

navigation in the area exceedingly difficult. If Fraz-Urb’luu dies, these effects fade over the course of 1d10;{"diceNotation":"1d10","rollType":"roll"} days. Cultists of Fraz-Urb’luu Fraz

Belashyrra

Monsters Eberron: Rising from the Last War

, Belashyrra has a challenge rating of 23 (50,000 XP). Lair Actions. While within the Citadel of Lidless Eyes, Belashyrra can invoke the ambient magic to take lair actions. On initiative count 20 (losing

effects fade over the course of 1d10;{"diceNotation":"1d10","rollType":"roll"} days. Madness of Belashyrra If a creature goes mad in Belashyrra’s lair or while it can see the daelkyr, it gains

Equipment List

Compendium - Sources->Dungeons & Dragons->Spelljammer Academy

hempen rope 2 mess kits Portable cooking surface 2 barrels of water 5 flasks of cooking oil 2 chests containing fresh foodstuffs Chest containing 150 days rations 5 lanterns with continual flame

Adult Crystal Dragon

Monsters Fizban's Treasury of Dragons

blinds and secret passages throughout their lairs, allowing them to move easily—and potentially unnoticed. The challenge rating of a legendary crystal dragon increases by 1 when it’s

the lair returns to normal levels over the course of 1d10;{"diceNotation":"1d10", "rollType":"roll", "rollAction":"Days"} days. The increased Hit Die recovery ends immediately. The existing abundance of

Ancient Crystal Dragon

Monsters Fizban's Treasury of Dragons

areas for their hoards. They use their burrowing ability to dig blinds and secret passages throughout their lairs, allowing them to move easily—and potentially unnoticed. The challenge rating

made with advantage. If the dragon dies, the animal population near the lair returns to normal levels over the course of 1d10;{"diceNotation":"1d10", "rollType":"roll", "rollAction":"Days"} days. The

Ancient Sapphire Dragon

Monsters Fizban's Treasury of Dragons

stone to come and go. The challenge rating of a legendary sapphire dragon increases by 1 when it’s encountered in its lair. Lair Actions On initiative count 20 (losing initiative ties), the

numbers. If the dragon dies, the population of giant spider;giant spiders in the region returns to normal levels over the course of 1d10;{"diceNotation":"1d10", "rollType":"roll", "rollAction":"Days

D&D Beyond

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