both before duplicate course round

Control Water

Spells Player’s Handbook

separated water forms a wall to either side. The trench remains until the spell ends or you choose a different effect. The water then slowly fills in the trench over the course of the next round until

Wish

Spells Player’s Handbook

Wish is the mightiest spell a mortal can cast. By simply speaking aloud, you can alter reality itself. The basic use of this spell is to duplicate any other spell of level 8 or lower. If you use it

a reroll of any die roll made within the last round (including your last turn). Reality reshapes itself to accommodate the new result. For example, a Wish spell could undo an ally’s failed

Demogorgon

Monsters Mordenkainen Presents: Monsters of the Multiverse

initiative count 20 of the next round. Illusory Duplicate. Demogorgon creates an illusory duplicate of himself, which appears in his space and lasts until initiative count 20 of the next round. On his turn

, Demogorgon can move the illusory duplicate a distance equal to his walking speed (no action required). The first time a creature or an object interacts physically with Demogorgon (for example, by

Demogorgon Legacy

Monsters Out of the Abyss

of the next round. On his turn, Demogorgon can move the illusory duplicate a distance equal to his walking speed (no action required). The first time a creature or object interacts physically with

following effects; Demogorgon can’t use the same effect two rounds in a row: Demogorgon creates an illusory duplicate of himself, which appears in his own space and lasts until initiative count 20

Merrenoloth

Monsters Mordenkainen Presents: Monsters of the Multiverse

waterThe grim captains of the ferries on the River Styx, merrenoloths can navigate safely through the worst storms and always stay on course. Wielding fiery oars, merrenoloths strike fear into anyone

take the same lair action two rounds in a row: Gale. The air within 60 feet of the vessel is filled with wind. Until initiative count 20 on the next round, that area is difficult terrain, and when a

Merrenoloth Legacy

Monsters Mordenkainen’s Tome of Foes

30 feet until initiative count 20 on the next round. The air within 60 feet of the ship is filled with howling wind. Until initiative count 20 on the next round, that area is difficult terrain, and

vessel with powerful magic that creates one or more of the following effects: The ship doesn't sink even if its hull is breached. The ship always stays on course to the destination the merrenoloth

Podling

Monsters Van Richten’s Guide to Ravenloft

comatose. Over the course of hours, the creature is dissolved and its body repurposed into a podling duplicate. Podlings are near-perfect mimics of the creatures they replace. Despite having the

Adult Time Dragon

Monsters Planescape: Adventures in the Multiverse

succeeds on three of these saves.The dragon can take up to three reactions per round but only one per turn. Reactive Rend. After using Legendary Resistance or in response to being hit by an attack

damage and move 1 round forward in time. A target moved forward in time vanishes for the duration. When the effect ends, the target reappears in the space it left or in an unoccupied space nearest to

Demilich Legacy

Monsters Monster Manual (2014)

of it. An antimagic field fills the space of the target, moving with it until initiative count 20 on the next round. The demilich targets any number of creatures it can see within 30 feet of it. No

target can regain hit points until initiative count 20 on the next round. Lair Traits A demilich’s tomb might have any or all of the following effects in place: The first time a non-evil

Ancient Time Dragon

Monsters Planescape: Adventures in the Multiverse

by the dragon from opening in the rulers’ presence or anywhere within their domains.The dragon can take up to three reactions per round but only one per turn. Reactive Rend. After using

", "rollDamageType":"psychic"} psychic damage and move 1 round forward in time. A target moved forward in time vanishes for the duration. When the effect ends, the target reappears in the space it left or

Enchanting Infiltrator

Monsters The Book of Many Things

illusory duplicate of itself in its space, then teleports, along with any equipment it is wearing or carrying, to an unoccupied space within 15 feet of itself. The image flings illusory blades at two

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

Beholder Legacy

Monsters Monster Manual (2014)

beholder becomes slimy; that area is difficult terrain until initiative count 20 on the next round. Walls within 120 feet of the beholder sprout grasping appendages until initiative count 20 on the round

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.

Death Tyrant Legacy

Monsters Monster Manual (2014)

the next round. Walls sprout spectral appendages until initiative count 20 on the round after next. Any creature, including one on the Ethereal Plane, that is hostile to the tyrant and starts its

’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

Zariel Legacy

Monsters Mordenkainen’s Tome of Foes

create images of intruders’ loved ones being burned alive. Zariel doesn’t need to concentrate on the spells, which end on initiative count 20 of the next round. Each creature that can see

take this damage no more than once per round. The area within 2 miles, but no closer than 500 feet, of the lair is filled with smoke, which causes the area to be heavily obscured. The smoke can&rsquo

Factol Skall

Monsters Adventure Atlas: The Mortuary

dead (as an action), dispel magic, speak with dead 1/day each: finger of death, plane shift (self only), project imageSkall can take up to three reactions per round but only one per turn. Baleful

flesh, Skall often delegates his bureaucratic responsibilities to Undead proxies or—on rare occasions—appears as an illusory duplicate. Subtle social cues are lost on the factol, whose

Adult Red Dracolich Legacy

Monsters Monster Manual (2014)

lasts until initiative count 20 on the next round. Each creature that starts its turn in the cloud must succeed on a DC 13 Constitution saving throw or be poisoned until the end of its turn. While

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

Adult Red Dragon Legacy

Monsters Basic Rules (2014)

the next round. Each creature that starts its turn in the cloud must succeed on a DC 13 Constitution saving throw or be poisoned until the end of its turn. While poisoned in this way, a creature is

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

Adult Copper Dragon Legacy

Monsters Basic Rules (2014)

the next round, the mud hardens, and the Strength DC to work free increases to 20. Regional Effects The region containing a legendary copper dragon’s lair is warped by the dragon’s magic

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)

count 20 on the next round. Each creature that starts its turn in the cloud must succeed on a DC 13 Constitution saving throw or be poisoned until the end of its turn. While poisoned in this way, a

’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

Control Water Legacy

Spells Basic Rules (2014)

spell ends or you choose a different effect. The water then slowly fills in the trench over the course of the next round until the normal water level is restored. Redirect Flow. You cause flowing water

the vortex, the object takes 2d8 bludgeoning damage; this damage occurs each round it remains in the vortex.

Lorthuun

Monsters Out of the Abyss

initiative count 20 on the next round. Walls within 120 feet of the beholder sprout grasping appendages until initiative count 20 on the round after next. Each creature of the beholder's choice that

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.

Valin Sarnaster

Monsters Candlekeep Mysteries

as the immortal heir of Savras’s realm. The Canopic Being came into her possession years ago, and an obsession with the dark rituals therein set the oracle on her present course. Valin has

on the next round. Each undead in the lair has advantage on saving throws against effects that turn undead until initiative count 20 on the next round. Until initiative count 20 on the next round

Demilich (Variant) Legacy

Monsters Monster Manual (2014)

antimagic field fills the space of the target, moving with it until initiative count 20 on the next round. The demilich targets any number of creatures it can see within 30 feet of it. No target can regain

hit points until initiative count 20 on the next round. Lair Traits A demilich’s tomb might have any or all of the following effects in place: The first time a non-evil creature enters

Wish Legacy

Spells Basic Rules (2014)

duplicate any other spell of 8th level or lower. You don't need to meet any requirements in that spell, including costly components. The spell simply takes effect. Alternatively, you can create one of the

could make yourself and all your companions immune to a lich's life drain attack. You undo a single recent event by forcing a reroll of any roll made within the last round (including your last turn

Ancient Copper Dragon Legacy

Monsters Basic Rules (2014)

2 feet of movement. On initiative count 20 on the next round, the mud hardens, and the Strength DC to work free increases to 20. Regional Effects The region containing a legendary copper dragon

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

Juiblex

Monsters Mordenkainen Presents: Monsters of the Multiverse

after 1 round. Any creature that starts its turn in the burning slime takes 22 (4d10);{"diceNotation":"4d10","rollType":"damage","rollAction":"Slippery Slime","rollDamageType":"fire"} fire damage. Sticky

check. The slime lasts for 1 hour or until it is burned away with fire. If the slime is set on fire, it burns away after 1 round. Any creature that starts its turn in the burning slime takes 22 (4d10

Zariel

Monsters Mordenkainen Presents: Monsters of the Multiverse

. Zariel prefers to create images of intruders’ loved ones being burned alive. Zariel doesn’t need to concentrate on the spells, which end on initiative count 20 of the next round. Each

damage no more than once per round. Smoke. The area within 2 miles of the lair, but no closer than 500 feet, is filled with smoke, which causes the area to be heavily obscured. The smoke can’t be

Froghemoth Elder

Monsters Quests from the Infinite Staircase

reactions per round but only one per turn. Alien Gaze. When a creature the froghemoth can see damages the froghemoth, the froghemoth swivels its eyestalk toward the creature and pierces the creature

. Wildlife encountered near the lair often sport mutations, such as extra limbs or eyes, glowing secretions, or vestigial tentacles. If the froghemoth elder dies, these effects fade over the course of 1d10;{"diceNotation":"1d10", "rollType":"roll", "rollAction":"Regional Effect Fade Time"} days.Fire, Lightning

Riverine

Monsters Journeys through the Radiant Citadel

20 on the next round. Any creature, other than the riverine, that enters the affected area or starts its turn there takes 7 (2d6);{"diceNotation":"2d6","rollType":"damage","rollAction":"River's

, 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

Juiblex Legacy

Monsters Out of the Abyss

. If the slime is set on fire, it burns away after 1 round. Any creature that starts its turn in the burning slime takes 22 (4d10);{"diceNotation":"4d10","rollType":"damage","rollAction":"Burning Slime

creature enters the area for the first time on a turn or ends its turn there, that creature must make the same save.If the slime is set on fire, it burns away after 1 round. Any creature that starts its

Demogorgon's Lair

Compendium - Sources->Dungeons & Dragons->Mordenkainen's Tome of Foes

initiative count 20 of the next round. On his turn, Demogorgon can move the illusory duplicate a distance equal to his walking speed (no action required). The first time a creature or object interacts

action to cause one of the following effects; he can’t use the same effect two rounds in a row: Demogorgon creates an illusory duplicate of himself, which appears in his own space and lasts until

Demogorgon's Lair

Compendium - Sources->Dungeons & Dragons->Out of the Abyss

until initiative count 20 of the next round. On his turn, Demogorgon can move the illusory duplicate a distance equal to his walking speed (no action required). The first time a creature or object

action to cause one of the following effects; Demogorgon can’t use the same effect two rounds in a row: Demogorgon creates an illusory duplicate of himself, which appears in his own space and lasts

33. Chamber of Opposition

Compendium - Sources->Dungeons & Dragons->Tomb of Annihilation

duplicate moves backward, the duplicate moves toward the font. If the character then mimes drinking from the font, the duplicate slurps up the “soup” at a rate of 5 pints per round, draining the font in 8

illusory. Tactile exploration reveals that the liquid has no substance and the font is dry. The dark figure is a magical, illusory duplicate of whichever character opened the door to the room. It copies

Adult Crystal Dragon

Monsters Fizban's Treasury of Dragons

dragon until initiative count 20 on the next round. A creature charmed in this way obeys to the best of its ability any command the dragon issues that isn’t directly harmful to the creature. Ice

round. Regional Effects The region surrounding a legendary crystal dragon’s lair is altered by the dragon's magic, creating one or more of the following effects: Clear Skies. The skies above

Ancient Crystal Dragon

Monsters Fizban's Treasury of Dragons

must succeed on a DC 15 Wisdom saving throw or be charmed by the dragon until initiative count 20 on the next round. A creature charmed in this way obeys to the best of its ability any command the

the glow around any creature fades on initiative count 20 on the next round. Regional Effects The region surrounding a legendary crystal dragon’s lair is altered by the dragon's magic

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