before being dealing course rating

Kelek

Monsters The Wild Beyond the Witchlight

of the staff's charges, dealing an extra 3 (1d6);{"diceNotation":"1d6","rollType":"damage","rollAction":"Staff of Striking","rollDamageType":"force"} force damage for each expended charge. Fiery

Defense to bolster his low Armor Class whenever possible, and his challenge rating is a reflection of the likelihood that he will use Fiery Explosion as often as he can. If one or more of his allies

Demilich Legacy

Monsters Monster Manual (2014)

. A demilich in its lair has a challenge rating of 20 (24,500 XP). Lair Actions On initiative count 20 (losing initiative ties), the demilich rolls a d20;{"diceNotation":"1d20","rollType":"roll

long as they aren’t used to leave or enter the tomb’s area. If the demilich is destroyed, these effects fade over the course of 10 days.Necrotic, Poison, Psychic; Bludgeoning, Piercing, and Slashing from Nonmagical AttacksBludgeoning, Piercing, and Slashing from Magic Weapons

Gnome Legacy

Species Basic Rules (2014)

squeeze every ounce of enjoyment out of their three to five centuries of life. Humans might wonder about getting bored over the course of such a long life, and elves take plenty of time to savor the

enjoy a mix of serious learning and delighted enjoyment. A gnome might tutor several generations of a single human family over the course of his or her long life. Gnome Names Gnomes love names, and

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.

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

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

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.

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.

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.

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.

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

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

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

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

Demilich (Variant) Legacy

Monsters Monster Manual (2014)

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

aren’t used to leave or enter the tomb’s area. If the demilich is destroyed, these effects fade over the course of 10 days.Necrotic, Poison, Psychic; Bludgeoning, Piercing, and Slashing from Nonmagical AttacksBludgeoning, Piercing, and Slashing from Magic Weapons

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

Khatesh understand what forces they are dealing with, or recognize the danger inherent in her gifts. The Queen of Shadows. An entity of shadow, Sul Khatesh can assume any form. Her favored shape is a twelve

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

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

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.

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

Ancient Amethyst Dragon

Monsters Fizban's Treasury of Dragons

magic dealing with the nature of the planes of existence, cosmic forces, and distant worlds. They prize treasures drawn from different worlds of the Material Plane, especially magic items and artworks

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

Adult Amethyst Dragon

Monsters Fizban's Treasury of Dragons

in collecting knowledge and magic dealing with the nature of the planes of existence, cosmic forces, and distant worlds. They prize treasures drawn from different worlds of the Material Plane

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 Sapphire Dragon

Monsters Fizban's Treasury of Dragons

ability to maneuver underground. A sapphire dragon often refrains from striking immediately, preferring to assess intruders first in order to devise the most advantageous approach to dealing with them

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

Customizing NPCs

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

have a magic staff or wand, as well as one or more potions and scrolls. Giving an NPC a potent damage-dealing magic item could alter its challenge rating. Magic items, as well as adjusting a creature’s challenge rating, are described in the Dungeon Master’s Guide.

speed of 25 feet and the Lucky trait. Adding racial traits to an NPC doesn’t alter its challenge rating. For more on racial traits, see the Player’s Handbook. Spell Swaps. One way to customize an NPC

Customizing NPCs

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

. Magic Items The more powerful an NPC, the more likely it has one or more magic items in its possession. An archmage, for example, might have a magic staff or wand, as well as one or more potions and scrolls. Giving an NPC a potent damage-dealing magic item could alter its challenge rating.

and the Lucky trait. Adding racial traits to an NPC doesn't alter its challenge rating. For more on racial traits, see the Player's Handbook. Spell Swaps One way to customize an NPC spellcaster is to

Hythonia

Monsters Mythic Odysseys of Theros

medusa rising up anew, the last of her shed skin dropping away, revealing glistening, unscarred scales. Fighting Hythonia as a mythic encounter is equivalent to taking on two challenge rating 17

: Hythonia briefly animates creatures that have been petrified by her gaze. Each statue attacks one creature within 5 feet of it, with a +11 bonus to hit and dealing 10 (3d6);{"diceNotation":"3d6

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

Crook of Rao

Magic Items Tasha’s Cauldron of Everything

Ages ago, the serene god Rao created a tool to shield his fledgling faithful against the evils of the Lower Planes. Yet, as eons passed, mortals developed their own methods of dealing with

within 1 mile of you. Any fiend with a challenge rating of 19 or higher is unaffected. Each banished fiend is sent back to its home plane and can’t return to the plane the Crook of Rao banished it

Who Dwells Here?

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

Who Dwells Here? As with the Tomb of Horrors, this version of the temple takes place in a period of the distant past, and incorporates rare elements of D&D lore. You are, of course, free to use or

lower levels suggested for the adventure can safely deal with. The players should be forewarned that their characters should treat with such legendary figures carefully—a warning that is repeated by whichever agent the characters are dealing with.

Adult Sapphire Dragon

Monsters Fizban's Treasury of Dragons

sapphire dragon often refrains from striking immediately, preferring to assess intruders first in order to devise the most advantageous approach to dealing with them. Sapphire dragons watch for signs of

other unseen by intruders. The most secure lairs might feature no accessible entrances or exits at all, with the dragon relying on tunneling or shaping stone to come and go. The challenge rating of a

Ancient Deep Dragon Legacy

Monsters Fizban's Treasury of Dragons

mushrooms and plants in neatly organized displays. The challenge rating of a legendary deep dragon increases by 1 when it’s encountered in its lair. Lair Actions On initiative count 20 (losing

effects fade over the course of 1d10;{"diceNotation":"1d10", "rollType":"roll", "rollAction":"Days"} days.Poison, Psychic

Ancient Dragon Turtle

Monsters Fizban's Treasury of Dragons

an dragon turtle;adult or ancient dragon turtle access to lair actions, increasing its challenge rating by 1. On initiative count 20 (losing initiative ties), the dragon turtle can take one of the

water within 6 miles of the dragon turtle’s lair to 100 degrees Fahrenheit. If the dragon turtle dies, these effects fade over the course of 1d10;{"diceNotation":"1d10","rollType":"roll

21. Animated Ballistae

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

magic bolt of fire (+6 to hit) at a target it can perceive, dealing 16 (3d10) fire damage on a hit, but it can’t attack any creature directly above it. Treat each ballista as a monster with a challenge

rating of 2 (450 XP). The ballistae can’t perceive (and thus they ignore) creatures that keep to the easternmost 60-foot section of the hallway. Once they detect intruders, however, the ballistae

Adult Deep Dragon Legacy

Monsters Fizban's Treasury of Dragons

, or featuring larger mushrooms and plants in neatly organized displays. The challenge rating of a legendary deep dragon increases by 1 when it’s encountered in its lair. Lair Actions On

. If the dragon dies, these effects fade over the course of 1d10;{"diceNotation":"1d10", "rollType":"roll", "rollAction":"Days"} days.Poison, Psychic

D&D Beyond

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