failed the reverts

Moonbeam

Spells Player’s Handbook

action on later turns to move the Cylinder up to 60 feet. When the Cylinder appears, each creature in it makes a Constitution saving throw. On a failed save, a creature takes 2d10 Radiant damage, and if

the creature is shape-shifting;shape-shifted (as a result of the Polymorph spell, for example), it reverts to its true form and can’t shape-shift until it leaves the Cylinder. On a successful

Donjon's Sundering Sphere

Magic Items The Book of Many Things

creature with this weapon, you can force the creature to make a DC 16 Charisma saving throw. On a failed save, the creature is banished to a harmless demiplane until the end of its next turn. When the

. When you end your attunement to the sphere, the sphere harmlessly detaches from the weapon, and the weapon reverts to a nonmagical piece of equipment.

Doric

Monsters Thieves’ Gallery

Rebuke", "rollDamageType":"fire"} fire damage on failed save, or half as much damage on a successful one.The tiefling Doric was taken in by a wood elf enclave in Neverwinter Wood after being abandoned as a

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

Hound Archon

Monsters Planescape: Adventures in the Multiverse

Wisdom saving throw. On a failed save, the creature has the frightened condition until the start of its next turn. On a successful save, the creature is immune to all archons’ Aura of Menace for

transforms into any Medium or Large dog or wolf while retaining its game statistics (other than its size and losing its Shining Blade attack). The archon reverts to its true form if reduced to 0 hit points or if it uses a bonus action to do so.

Spitting Mimic

Monsters Icewind Dale: Rime of the Frostmaiden

transformed. It reverts to its true form if it dies. Adhesive (Object Form Only). The mimic adheres to anything that touches it. A Huge or smaller creature adhered to the mimic is also grappled by it

must make a DC 14 Dexterity saving throw, taking 32 (9d6 + 1);{"diceNotation":"9d6+1","rollType":"damage","rollAction":"Spit Acid","rollDamageType":"acid"} acid damage on failed save, or half as much

Umbraxakar

Monsters Waterdeep: Dungeon of the Mad Mage

Dexterity saving throw, taking 66 (12d10);{"diceNotation":"12d10","rollType":"damage","rollAction":"Shadow Breath","rollDamageType":"necrotic"} necrotic damage on a failed save, or half as much damage on a

Umbraxakar’s control. Repulsion Breath. The dragon exhales repulsion energy in a 30-foot cone. Each creature in that area must succeed on a DC 19 Strength saving throw. On a failed save, the

Nonaton Modron

Monsters Planescape: Adventures in the Multiverse

-foot-tall, 20-foot-radius cylinder of magical force rises from that point. Each creature in that area must make a DC 15 Dexterity saving throw. On a failed save, a creature takes 21 (6d6);{"diceNotation

":"6d6", "rollType":"damage", "rollAction":"Pillar of Truth", "rollDamageType":"force"} force damage, and the creature reverts to its original form (if it’s in a different form) and can’t

Stalagma Steelshadow

Monsters Waterdeep: Dungeon of the Mad Mage

);{"diceNotation":"13d8","rollType":"damage","rollAction":"Acid Breath","rollDamageType":"acid"} acid damage on a failed save, or half as much damage on a successful one. Paralyzing Breath. The dragon

its true form. It reverts to its true form if it dies. Any equipment it is wearing or carrying is absorbed or borne by the new form (the dragon's choice). In a new form, the dragon retains its

Lhammaruntosz

Monsters Sleeping Dragon’s Wake

"} lightning damage on a failed save, or half as much damage on a successful one. Repulsion Breath. Lhammaruntosz exhales repulsion energy in a 30-foot cone. Each creature in that area must succeed on

a DC 19 Strength saving throw. On a failed save, the creature is pushed 60 feet away from the dragon. Change Shape. Lhammaruntosz magically polymorphs into a humanoid or beast that has a challenge

Jiangshi

Monsters Van Richten’s Guide to Ravenloft

":"Consume Energy","rollDamageType":"necrotic"} necrotic damage on a failed save, or half as much damage on a successful one. The jiangshi regains hit points equal to the amount of necrotic damage dealt

jiangshi’s choice). It reverts to its true form if it dies.When a soul becomes trapped within its corpse, its bitterness can reanimate its body, creating a jiangshi. These vengeful dead stalk

Staff of Ruling

Magic Items Quests from the Infinite Staircase

lightning damage equal to the total accumulated damage on a failed save, or half as much damage on a successful one; the orb’s base damage is 6d6, and if at the end of your turn the orb hasn

location. If you use a bonus action to speak the command word again, or if the snake is reduced to 0 hit points, the snake reverts to staff form in its current space. Thunderclap. You point the

Drow Arachnomancer

Monsters Mordenkainen Presents: Monsters of the Multiverse

":"7d8", "rollType":"damage", "rollAction":"Bite", "rollDamageType":"poison"} poison damage on a failed save, or half as much damage on a successful one. If the poison damage reduces the target to 0 hit

the same in each form. It can speak and cast spells while in spider form. Any equipment it is wearing or carrying in Humanoid form melds into the spider form. It can’t activate, use, wield, or otherwise benefit from any of its equipment. It reverts to its Humanoid form if it dies.

Hoard Mimic

Monsters Fizban's Treasury of Dragons

mist of acid in a 30-foot cone. Each creature in that area must make a DC 14 Dexterity saving throw. On a failed save, the creature takes 27 (6d8);{"diceNotation":"6d8", "rollType":"damage", "rollAction

. The mimic transforms into a hoard or back into its true, amorphous form. Its statistics are the same in each form. Any equipment it is wearing or carrying isn’t transformed. It reverts to its

Storm Herald

Monsters Bigby Presents: Glory of the Giants

21 Intelligence saving throw. On a failed save, a target takes 23 (3d10 + 7);{"diceNotation":"3d10+7", "rollType":"damage", "rollAction":"Psychic Wave", "rollDamageType":"psychic"} psychic damage and

’s sway, and the herald gains fearsome psychic powers to use in advancing its master’s plans. When the herald dies, it reverts to its previous appearance. A storm herald might try to sway

Euryale

Monsters The Book of Many Things

statistics are the same in each form except where noted in this stat block. Any equipment she is wearing or carrying isn’t transformed. Euryale reverts to her medusa form if she dies. Petrifying

make a DC 18 Constitution saving throw if it doesn’t have the blinded condition. If the saving throw fails by 5 or more, the creature has the petrified condition. Otherwise, on a failed save, the

Diderius

Monsters Tyranny of Dragons

turn. Whirlwind of Sand (Costs 2 Actions). Diderius magically transforms into a whirlwind of sand, moves up to 60 feet, and reverts to his normal form. While in whirlwind form, Diderius is immune to

, it must make a DC 16 Constitution saving throw. On a failed save, it takes 1d6 necrotic damage per level of the spell, and the spell has no effect and is wasted. Regional Effects A mummy lord

Murgaxor

Monsters Strixhaven: A Curriculum of Chaos

that area must make a DC 17 Constitution saving throw. On a failed save, a creature takes 38 (7d10);{"diceNotation":"7d10", "rollType":"damage", "rollAction":"Blood Boil", "rollDamageType":"necrotic

, takes its turns on initiative count 10 (losing initiative ties), fights until destroyed, and reverts to a mound of inanimate clay after 1 hour. Earthen Fist. A medium fist of packed earth rises

Strahd, Master of Death House

Monsters Vecna: Eve of Ruin

Fire", "rollDamageType":"necrotic"} necrotic damage on a failed save or half as much damage on a successful one. Charm. Strahd targets one Humanoid he can see within 30 feet of himself. The target must

;s control. Change Shape. Strahd transforms into a new form or back into his true form. Anything he is wearing transforms with him, but nothing he is carrying does. He reverts to his true form if he

Iymrith

Monsters Storm King's Thunder

. She reverts to her true form if she dies. Any equipment she is wearing or carrying is absorbed or borne by the new form (the dragon’s choice). In storm giant form, Iymrith retains her alignment

);{"diceNotation":"16d10","rollType":"damage","rollAction":"Lightning Breath","rollDamageType":"lightning"} lightning damage on a failed save, or half as much damage on a successful one. Spellcasting

Gorka Tharn

Monsters Waterdeep: Dungeon of the Mad Mage

points until the end of the mummy lord's next turn. Whirlwind of Sand (Costs 2 Actions). The mummy lord magically transforms into a whirlwind of sand, moves up to 60 feet, and reverts to its normal

can choose another action, but if it tries to cast the spell, it must make a DC 16 Constitution saving throw. On a failed save, it takes 1d6;{"diceNotation":"1d6","rollType":"damage","rollAction":"Lair

Sul Khatesh

Monsters Eberron: Rising from the Last War

","rollType":"damage","rollAction":"Arcane Cataclysm","rollDamageType":"force"} force damage on a failed save or half as much damage on a successful one. A creature in the area of more than one arcane burst is

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

Valin Sarnaster

Monsters Candlekeep Mysteries

). Valin magically transforms into a whirlwind of sand, moves up to 60 feet, and reverts to her normal form. While in whirlwind form, Valin is immune to all damage, and she can’t be grappled

make a DC 16 Constitution saving throw. On a failed save, it takes (1d6);{"diceNotation":"1d6","rollType":"damage","rollAction":"Pain Feedback","rollDamageType":"necrotic"} necrotic damage per level of

Imp Legacy

Monsters Basic Rules (2014)

form. Its statistics are the same in each form, except for the speed changes noted. Any equipment it is wearing or carrying isn't transformed. It reverts to its true form if it dies. Devil's Sight

"} poison damage on a failed save, or half as much damage on a successful one. Invisibility. The imp magically turns invisible until it attacks or until its concentration ends (as if concentrating on a

Imp (Familiar Variant) Legacy

Monsters Monster Manual (2014)

form. Its statistics are the same in each form, except for the speed changes noted. Any equipment it is wearing or carrying isn't transformed. It reverts to its true form if it dies. Devil's Sight

","rollType":"damage","rollAction":"Sting","rollDamageType":"poison"} poison damage on a failed save, or half as much damage on a successful one. Invisibility. The imp magically turns invisible until it

Jackalwere Legacy

Monsters Monster Manual (2014)

statistics are the same in each form. Any equipment it is wearing or carrying isn’t transformed. It reverts to its true form if it dies. Keen Hearing and Smell. The jackalwere has advantage on

","rollDamageType":"slashing"} slashing damage. Sleep Gaze. The jackalwere gazes at one creature it can see within 30 feet of it. The target must make a DC 10 Wisdom saving throw. On a failed save, the

Ancient Bronze Dragon Legacy

Monsters Basic Rules (2014)

must make a DC 23 Dexterity saving throw, taking 88 (16d10);{"diceNotation":"16d10","rollType":"damage","rollAction":"Lightning Breath","rollDamageType":"lightning"} lightning damage on a failed save

failed save, the creature is pushed 60 feet away from the dragon. Change Shape. The dragon magically polymorphs into a humanoid or beast that has a challenge rating no higher than its own, or back

Incubus Legacy

Monsters Basic Rules (2014)

are the same in each form. Any equipment it is wearing or carrying isn't transformed. It reverts to its true form if it dies.Claw (Fiend Form Only). Melee Weapon Attack: +5;{"diceNotation":"1d20+5

","rollType":"damage","rollAction":"Draining Kiss","rollDamageType":"psychic"} psychic damage on a failed save, or half as much damage on a successful one. The target's hit point maximum is reduced by

Adult Bronze Dragon Legacy

Monsters Basic Rules (2014)

must make a DC 19 Dexterity saving throw, taking 66 (12d10);{"diceNotation":"12d10","rollType":"damage","rollAction":"Lightning Breath","rollDamageType":"lightning"} lightning damage on a failed save

failed save, the creature is pushed 60 feet away from the dragon. Change Shape. The dragon magically polymorphs into a humanoid or beast that has a challenge rating no higher than its own, or back into

Flesh to Stone Legacy

Spells Basic Rules (2014)

You attempt to turn one creature that you can see within range into stone. If the target's body is made of flesh, the creature must make a Constitution saving throw. On a failed save, it is

it reverts to its original state. If you maintain your concentration on this spell for the entire possible duration, the creature is turned to stone until the effect is removed.

Succubus Legacy

Monsters Basic Rules (2014)

are the same in each form. Any equipment it is wearing or carrying isn't transformed. It reverts to its true form if it dies.Claw (Fiend Form Only). Melee Weapon Attack: +5;{"diceNotation":"1d20+5

","rollType":"damage","rollAction":"Draining Kiss","rollDamageType":"psychic"} psychic damage on a failed save, or half as much damage on a successful one. The target's hit point maximum is reduced by

Ancient Silver Dragon Legacy

Monsters Basic Rules (2014)

);{"diceNotation":"15d8","rollType":"damage","rollAction":"Cold Breath","rollDamageType":"cold"} cold damage on a failed save, or half as much damage on a successful one. Paralyzing Breath. The dragon

true form. It reverts to its true form if it dies. Any equipment it is wearing or carrying is absorbed or borne by the new form (the dragon's choice). In a new form, the dragon retains its alignment

Moonbeam Legacy

Spells Basic Rules (2014)

damage on a failed save, or half as much damage on a successful one. A shapechanger makes its saving throw with disadvantage. If it fails, it also instantly reverts to its original form and can’t

Adult Silver Dragon Legacy

Monsters Basic Rules (2014)

);{"diceNotation":"13d8","rollType":"damage","rollAction":"Cold Breath","rollDamageType":"cold"} cold damage on a failed save, or half as much damage on a successful one. Paralyzing Breath. The dragon exhales

. It reverts to its true form if it dies. Any equipment it is wearing or carrying is absorbed or borne by the new form (the dragon's choice). In a new form, the dragon retains its alignment, hit

Gray Slaad (control gem variant) Legacy

Monsters Monster Manual (2014)

is wearing or carrying isn’t transformed. It reverts to its true form if it dies. Innate Spellcasting. The slaad’s innate spellcasting ability is Charisma (spell save DC 14). The slaad can

uninterrupted work and a successful DC 20 Wisdom (Medicine) check. Each failed attempt deals 22 (4d10);{"diceNotation":"4d10","rollType":"damage","rollDamageType":"psychic"} psychic damage to the

Death Slaad (control gem variant) Legacy

Monsters Monster Manual (2014)

is wearing or carrying isn't transformed. It reverts to its true form if it dies. Innate Spellcasting. The slaad's innate spellcasting ability is Charisma (spell save DC 15, +7;{"diceNotation":"1d20+7

from an incapacitated slaad. Each try requires 1 minute of uninterrupted work and a successful DC 20 Wisdom (Medicine) check. Each failed attempt deals 22 (4d10);{"diceNotation":"4d10","rollType

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