before both days course rating

Mass Suggestion

Spells Player’s Handbook

You suggest a course of activity—described in no more than 25 words—to twelve or fewer creatures you can see within range that can hear and understand you. The suggestion must sound

can continue for the entire duration, but if the suggested activity can be completed in a shorter time, the spell ends for a target upon completing it. Using a Higher-Level Spell Slot. The duration is longer with a spell slot of level 7 (10 days), 8 (30 days), or 9 (366 days).

Geas

Spells Player’s Handbook

You give a verbal command to a creature that you can see within range, ordering it to carry out some service or refrain from an action or a course of activity as you decide. The target must succeed

, the duration is 365 days. If you use a level 9 spell slot, the spell lasts until it is ended by one of the spells mentioned above.

Crown of Horns

Magic Items Forgotten Realms: Adventures in Faerûn

the course of 365 days. During that time, the transformation is purely cosmetic; these cosmetic changes slowly fade if you end Attunement to the crown before completing the transformation. When the

can also cast this spell of its own free will. Once the spell has been cast using the crown, it can't be cast again until 7 days have passed. Random Properties. The Artifact has the following random

Mass Suggestion Legacy

Spells Basic Rules (2014)

You suggest a course of activity (limited to a sentence or two) and magically influence up to twelve creatures of your choice that you can see within range and that can hear and understand you

. Creatures that can't be charmed are immune to this effect. The suggestion must be worded in such a manner as to make the course of action sound reasonable. Asking the creature to stab itself, throw itself

Riverine

Monsters Journeys through the Radiant Citadel

, 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

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

Ambitious Assassin

Monsters The Book of Many Things

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

;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

Adult Time Dragon

Monsters Planescape: Adventures in the Multiverse

(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.

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

Beholder Legacy

Monsters Monster Manual (2014)

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.

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

Yuan-ti Broodguard

Monsters Mordenkainen Presents: Monsters of the Multiverse

":"roll", "rollAction":"Days"} days. A subject forced to imbibe the brew can make a DC 15 Constitution saving throw; on a success, it takes 14 (4d6);{"diceNotation":"4d6", "rollType":"damage

any time before it runs its course. After the process is complete, only a wish spell can reverse the effect.Poison

Soul Shaker

Monsters Journeys through the Radiant Citadel

escape, the soul shaker reforms over the course of days and begins hunting once more.PoisonNecroticConsume Vitality. The soul shaker targets a creature it is grappling. If the target is not a Construct or

","rollType":"roll","rollAction":"Reconstruction"}) days, if at least two of those crawling claw;crawling claws are alive, they teleport to the location of the soul shaker’s death and merge

Enchanting Infiltrator

Monsters The Book of Many Things

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

’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

Death Tyrant Legacy

Monsters Monster Manual (2014)

’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

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

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

Ancient Copper Dragon Legacy

Monsters Basic Rules (2014)

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

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

Veiled Presence

Monsters The Book of Many Things

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

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

Lorthuun

Monsters Out of the Abyss

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.

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

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

Ancient Time Dragon

Monsters Planescape: Adventures in the Multiverse

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.

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

Yeenoghu

Monsters Mordenkainen Presents: Monsters of the Multiverse

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

), 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

Aboleth Legacy

Monsters Basic Rules (2014)

can sense, speak, and use telepathy from the image’s position as if present at that position. If the image takes any damage, it disappears. If the aboleth dies, the first two effects fade over the course of 3d10;{"diceNotation":"3d10","rollAction":"Days","rollType":"roll"} days.

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

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

Demogorgon

Monsters Mordenkainen Presents: Monsters of the Multiverse

;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

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 Copper Dragon Legacy

Monsters Basic Rules (2014)

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 Red Dragon Legacy

Monsters Basic Rules (2014)

’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

Fraz-Urb'luu Legacy

Monsters Out of the Abyss

’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

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

Aurnozci

Monsters The Book of Many Things

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

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

Fraz-Urb'luu

Monsters Mordenkainen Presents: Monsters of the Multiverse

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

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

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

Juiblex

Monsters Mordenkainen Presents: Monsters of the Multiverse

, 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

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

Black Viper

Monsters Waterdeep: Dragon Heist

of her station. In her younger days, Esvele openly rebelled, but that behavior led to locked doors at night and house guards watching her every move during the day. So she taught herself how to pick

. When she throws back her cloak to reveal the costume she has put together, most folk toss their purses and flee. If that doesn't work, she usually needs only to draw her dagger. Of course, some of the

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 Red Dragon Legacy

Monsters Basic Rules (2014)

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

Mighty Fortress

Spells Xanathar's Guide to Everything

is furnished and decorated however you like, and it contains sufficient food to serve a nine-course banquet for up to 100 people each day. Furnishings, food, and other objects created by this spell

7 days or when you cast this spell somewhere else, the fortress harmlessly crumbles and sinks back into the ground, leaving any creatures that were inside it safely on the ground. Casting this spell on the same spot once every 7 days for a year makes the fortress permanent.

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