before block diffusing course rating

Shapechange

Spells Player’s Handbook

You shape-shift into another creature for the duration or until you take a Magic action to shape-shift into a different eligible form. The new form must be of a creature that has a Challenge Rating

no higher than your level or Challenge Rating. You must have seen the sort of creature before, and it can’t be a Construct or an Undead. When you cast the spell, you gain a number of Temporary

Polymorph

Spells Player’s Handbook

form can be any Beast you choose that has a Challenge Rating equal to or less than the target’s (or the target’s level if it doesn’t have a Challenge Rating). The target’s game

statistics are replaced by the stat block of the chosen Beast, but the target retains its alignment, personality, creature type, Hit Points, and Hit Point Dice. The target gains a number of Temporary

True Polymorph

Spells Player’s Handbook

creature into another kind of creature, the new form can be any kind you choose that has a Challenge Rating equal to or less than the target’s Challenge Rating or level. The target’s game

statistics are replaced by the stat block of the new form, but it retains its Hit Points, Hit Point Dice, alignment, and personality. The target gains a number of Temporary Hit Points equal to the Hit

Boon of Fluid Forms

Feats Forgotten Realms: Heroes of Faerûn

can take a Magic action to shape-shift into a Beast, Humanoid, or Monstrosity with a Challenge Rating no higher than 10. When you shape-shift, you gain a number of Temporary Hit Points equal to the

statistics are replaced by the stat block of the chosen form, but you retain your creature type; alignment; personality; Intelligence, Wisdom, and Charisma scores; Hit Points; Hit Point Dice; proficiencies

Archdruid

Monsters Mordenkainen Presents: Monsters of the Multiverse

Elemental with a challenge rating of 6 or less and can remain in that form for up to 9 hours. The archdruid can choose whether its equipment falls to the ground, melds with its new form, or is worn by the

new form. The archdruid reverts to its true form if it dies or falls unconscious. The archdruid can revert to its true form using a bonus action. While in a new form, the archdruid’s stat block

Doric

Monsters Thieves’ Gallery

Neverwinter targeted her woodland home for its resources, Doric rallied the resistance.FireChange Shape (5/Day). Doric magically transforms into a Beast with a challenge rating of 3 or less or into an

reverts to her true form if she is incapacitated or dies. She can revert to her true form using a bonus action. While Doric is transformed, her stat block is replaced by the stat block of that form

Solar Bastion Knight

Monsters The Book of Many Things

headquarters. The Solar Bastion knight presented here is an example member of the organization. Customize this stat block to suit individual knights and differentiate them from each other. For example

, knights who track the Grim Harrow through the multiverse might resemble rangers instead of paladins. In addition, Sir Jared, detailed at the end of chapter 10, can serve as a model for knights with a lower challenge rating.

Zombie Plague Spreader

Monsters Van Richten’s Guide to Ravenloft

":"poison"} poison damage on a failed save, or half as much damage on a successful one. A Humanoid reduced to 0 hit points by this damage dies and rises as a zombie (see its stat block in the Monster

into a dragon’s maw until the monster chokes. In the course of their relentless marches, zombies might suffer all manner of trauma, potentially reducing them to masses of crawling limbs (see

Amble

Monsters Locathah Rising

unoccupied space they can see.Change Shape (2/Day). Amble magically polymorphs into a beast with a challenge rating of 1 or less, and can remain in this form for up to 6 hours. Amble's equipment melds with

gaining those of the creature. If the creature has the same proficiency as Amble and the bonus in its stat block is higher, use the creature's bonus instead of Amble's. When Amble transforms, they

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

Priest of Osybus (Dread)

Monsters Van Richten’s Guide to Ravenloft

increases by 10 feet. 4 Priest of Osybus (Blazing);Blazing. The priest sloughs off its flesh, and its skeleton crumbles away, leaving only its skull. Its stat block is replaced by that of a flameskull

(Spectral);Spectral. The priest now appears wraithlike, and its challenge rating increases by 1. It gains resistance to all damage but force, radiant, and psychic, and it is vulnerable to radiant damage

Priest of Osybus

Monsters Van Richten’s Guide to Ravenloft

priest sloughs off its flesh, and its skeleton crumbles away, leaving only its skull. Its stat block is replaced by that of a flameskull, but it retains its Tattoo of Osybus trait, and all fire damage it

challenge rating increases by 1. It gains resistance to all damage but force, radiant, and psychic, and it is vulnerable to radiant damage. It can also move through creatures and objects as if they were

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

Ancient White Dragon Legacy

Monsters Basic Rules (2014)

lair. Freezing precipitation falls within 6 miles of the dragon’s lair, sometimes forming blizzard conditions when the dragon is at rest. Icy walls block off areas in the dragon’s lair

through a wall, it can do so without slowing down. The portion of the wall the dragon moves through is destroyed, however. If the dragon dies, the fog and precipitation fade within 1 day. The ice walls melt over the course of 1d10;{"diceNotation":"1d10","rollType":"roll"} days.Cold

Priest of Osybus (Deathly)

Monsters Van Richten’s Guide to Ravenloft

its flesh, and its skeleton crumbles away, leaving only its skull. Its stat block is replaced by that of a flameskull, but it retains its Tattoo of Osybus trait, and all fire damage it deals becomes

necrotic damage. The Tattoo of Osybus now appears carved into the skull’s forehead. 5 Priest of Osybus (Spectral);Spectral. The priest now appears wraithlike, and its challenge rating

Priest of Osybus (Ectoplasmic)

Monsters Van Richten’s Guide to Ravenloft

priest’s speed also increases by 10 feet. 4 Priest of Osybus (Blazing);Blazing. The priest sloughs off its flesh, and its skeleton crumbles away, leaving only its skull. Its stat block is

. 5 Priest of Osybus (Spectral);Spectral. The priest now appears wraithlike, and its challenge rating increases by 1. It gains resistance to all damage but force, radiant, and psychic, and it is

Priest of Osybus (Spectral)

Monsters Van Richten’s Guide to Ravenloft

also increases by 10 feet. 4 Priest of Osybus (Blazing);Blazing. The priest sloughs off its flesh, and its skeleton crumbles away, leaving only its skull. Its stat block is replaced by that of a

Osybus (Spectral);Spectral. The priest now appears wraithlike, and its challenge rating increases by 1. It gains resistance to all damage but force, radiant, and psychic, and it is vulnerable to radiant

Priest of Osybus (Vampiric)

Monsters Van Richten’s Guide to Ravenloft

. The priest sloughs off its flesh, and its skeleton crumbles away, leaving only its skull. Its stat block is replaced by that of a flameskull, but it retains its Tattoo of Osybus trait, and all fire

its challenge rating increases by 1. It gains resistance to all damage but force, radiant, and psychic, and it is vulnerable to radiant damage. It can also move through creatures and objects as if they

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

Adult White Dragon Legacy

Monsters Basic Rules (2014)

lair. Freezing precipitation falls within 6 miles of the dragon’s lair, sometimes forming blizzard conditions when the dragon is at rest. Icy walls block off areas in the dragon’s lair

through a wall, it can do so without slowing down. The portion of the wall the dragon moves through is destroyed, however. If the dragon dies, the fog and precipitation fade within 1 day. The ice walls melt over the course of 1d10;{"diceNotation":"1d10","rollType":"roll"} days.Cold

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

Priest of Osybus (Blazing)

Monsters Van Richten’s Guide to Ravenloft

, leaving only its skull. Its stat block is replaced by that of a flameskull, but it retains its Tattoo of Osybus trait, and all fire damage it deals becomes necrotic damage. The Tattoo of Osybus now

appears carved into the skull’s forehead. 5 Priest of Osybus (Spectral);Spectral. The priest now appears wraithlike, and its challenge rating increases by 1. It gains resistance to all damage

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

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.

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