before become diffusing change reduced

Alter Self

Spells Player’s Handbook

spell to become quadrupedal, for instance. For the duration, you can take a Magic action to change your appearance in this way again. Natural Weapons. You grow claws (Slashing), fangs (Piercing

. Aquatic Adaptation. You sprout gills and grow webs between your fingers. You can breathe underwater and gain a Swim Speed equal to your Speed. Change Appearance. You alter your appearance. You decide

Staff of the Python

Magic Items Dungeon Master’s Guide

As a Magic action, you can throw this staff so that it lands in an unoccupied space within 10 feet of you, causing the staff to become a Giant Constrictor Snake in that space. The snake is under your

for 1 hour. If the snake is reduced to 0 Hit Points, it dies and reverts to its staff form; the staff then shatters and is destroyed. If the snake reverts to staff form before losing all its Hit Points, it regains all of them.

Book of Exalted Deeds

Magic Items Dungeon Master’s Guide

that tries to read from the book takes 24d6 Radiant damage. This damage ignores Resistance and Immunity, and it can’t be reduced or avoided by any means. A creature reduced to 0 Hit Points by

benefits granted by the book. Celestial Calm. While attuned to the book, you have Immunity to the Charmed and Frightened conditions and Resistance to Psychic damage. These benefits become permanent

Vampire

Monsters Monster Manual

, the vampire uses Shape-Shift to become mist (no action required). If it can’t use Shape-Shift, it is destroyed. While it has 0 Hit Points in mist form, it can’t return to its vampire form

equal to that amount. A Humanoid reduced to 0 Hit Points by this damage and then buried rises the following sunset as a Vampire Spawn under the vampire’s control.Legendary Action Uses: 3 (4 in Lair

Eye and Hand of Vecna

Magic Items Dungeon Master’s Guide

your body, devours it, and then takes control of the body like a puppet. If that happens, you become an NPC under the DM’s control. Eye of Vecna Spells Spell Charge Cost

damage on a failed save or half as much damage on a successful one. A creature reduced to 0 Hit Points by this damage is transformed into green slime (see chapter 3) that covers the ground in its

Demonomicon of Iggwilv

Magic Items Dungeon Master’s Guide

Fiend that you can see that is trapped within the area of a Magic Circle spell. The Fiend must succeed on a DC 20 Charisma saving throw with Disadvantage or become trapped within one of the Demonomicon

lies a long-lost Artifact, Fraz-Urb’luu’s Staff. If the staff is dragged from the pocket plane, the tome is reduced to a mundane and out-of-date copy of the Tome of Zyx, the work that

Sammaster (Dracolich Form)

Monsters Forgotten Realms: Adventures in Faerûn

until he is reduced to 0 Hit Points. If Sammaster is reduced to 0 Hit Points, his dracolich form dissolves to dust. After 1d10;{"diceNotation":"1d10", "rollType":"roll", "rollAction":"Soul Gem"} days

Immunity to Acid, Necrotic, Poison, and Psychic damage. The gem regains all its Hit Points at the end of every turn, but it turns to dust if reduced to 0 Hit Points.Multiattack. Sammaster makes three Rend

Sammaster (Lich Form)

Monsters Forgotten Realms: Adventures in Faerûn

Resistance. Sammaster has Advantage on saving throws against spells and other magical effects. Soul Gem. If Sammaster is reduced to 0 Hit Points while his magical soul gem exists, his lich form dissolves

Tiny object that has AC 20; HP 50; and Immunity to Acid, Necrotic, Poison, and Psychic damage. The gem regains all its Hit Points at the end of every turn, but it turns to dust if reduced to 0 Hit Points

Vampire Infernalist

Monsters Astarion's Book of Hungers

, the vampire uses Shape-Shift to become mist (no action required). If it can’t use Shape-Shift, it is destroyed. While it has 0 Hit Points in mist form, it can’t return to its vampire form

(if any). The target’s Hit Point maximum decreases by an amount equal to the Necrotic damage taken, and the vampire regains Hit Points equal to that amount. A Humanoid reduced to 0 Hit Points by

Irda Seeker

Monsters Monstrous Compendium Vol. 2: Dragonlance Creatures

. If the seeker lacks the room to become Large, it attains the maximum size possible in the space available. Change Shape (1/Day). The seeker magically transforms to look and feel like a Medium

Humanoid it has seen. Any equipment the seeker is wearing or carrying isn’t transformed, and the seeker’s statistics don’t change. The seeker reverts to its true form if the seeker is

Torpor (Ingested) Legacy

Equipment

A creature subjected to this poison must succeed on a DC 15 Constitution saving throw or become poisoned for 4d6 hours. The poisoned creature is incapacitated. Ingested. A creature must swallow an

entire dose of ingested poison to suffer its effects. The dose can be delivered in food or a liquid. You may decide that a partial dose has a reduced effect, such as allowing advantage on the saving throw or dealing only half damage on a failed save.

Alter Self Legacy

Spells Basic Rules (2014)

underwater and gain a swimming speed equal to your walking speed. Change Appearance. You transform your appearance. You decide what you look like, including your height, weight, facial features, sound of your

voice, hair length, coloration, and distinguishing characteristics, if any. You can make yourself appear as a member of another race, though none of your statistics change. You also can't appear as a

Otyugh Mutate

Monsters Phandelver and Below: The Shattered Obelisk

with the Far Realm. Some creatures become mutates after prolonged exposure to Far Realm energy or magic drawn from that strange plane. Others deliberately change themselves, seeking to embrace the

fell powers they worship. Creatures that become mutates often inexplicably change back to their previous forms once the Far Realm influence abates. Forcing a transformation on creatures inexplicably

Tlacatecolo

Monsters Journeys through the Radiant Citadel

":"piercing"} piercing damage plus 14 (3d8);{"diceNotation":"3d8","rollType":"damage","rollAction":"Talon (Poison)","rollDamageType":"poison"} poison damage. Change Shape. The tlacatecolo magically

transforms into a Medium owl, while retaining its game statistics (other than its size). This transformation ends if the tlacatecolo is reduced to 0 hit points or if it uses its action to end it. Plague

Strahd, Master of Death House

Monsters Vecna: Eve of Ruin

Legendary Resistance (3/Day). If Strahd fails a saving throw, he can choose to succeed instead. Master of the House. When Strahd is reduced to 0 hit points, he dissolves into mist and immediately

flaws: Harmed by Running Water. While in running water, Strahd takes 20 acid damage if he ends his turn there, and he can’t use his Change Shape. Sunlight Hypersensitivity. While in sunlight

Create Homunculus

Spells Xanathar's Guide to Everything

While speaking an intricate incantation, you cut yourself with a jewel-encrusted dagger, taking 2d4 piercing damage that can’t be reduced in any way. You then drip your blood on the spell&rsquo

Constitution modifier to it. Your hit point maximum is reduced by the total, and the homunculus’s hit point maximum and current hit points are both increased by it. This process can reduce you to no

Truth Serum (Ingested) Legacy

Equipment

A creature subjected to this poison must succeed on a DC 11 Constitution saving throw or become poisoned for 1 hour. The poisoned creature can't knowingly speak a lie, as if under the effect of a

reduced effect, such as allowing advantage on the saving throw or dealing only half damage on a failed save.

Humanoid Mutate

Monsters Phandelver and Below: The Shattered Obelisk

deliberately change themselves, seeking to embrace the fell powers they worship. Creatures that become mutates often inexplicably change back to their previous forms once the Far Realm influence abates

this transformation to become malevolent prophets and harbingers. Others find magical ways to return to their previous forms. Mutates A creature exposed to the strange energy of the Far Realm

Irda Veil Keeper

Monsters Monstrous Compendium Vol. 2: Dragonlance Creatures

with advantage. If the veil keeper lacks the room to become Large, it attains the maximum size possible in the space available. These augmentations end if the veil keeper is incapacitated. Change

’s statistics don’t change. The veil keeper reverts to its true form if the veil keeper is reduced to 0 hit points or if the veil keeper uses an action to end the transformation

School of Transmutation Legacy

Classes Player’s Handbook (2014)

You are a student of spells that modify energy and matter. To you, the world is not a fixed thing, but eminently mutable, and you delight in being an agent of change. You wield the raw stuff of

creation and learn to alter both physical forms and mental qualities. Your magic gives you the tools to become a smith on reality’s forge. Some transmuters are tinkerers and pranksters, turning

Night Hag Legacy

Monsters Basic Rules (2014)

hit, reach 5 ft., one target. Hit: 13 (2d8 + 4);{"diceNotation":"2d8+4","rollType":"damage","rollAction":"Claws","rollDamageType":"slashing"} slashing damage. Change Shape. The hag magically

circle. As long as the contact persists, the target has dreadful visions. If these visions last for at least 1 hour, the target gains no benefit from its rest, and its hit point maximum is reduced by 5

School of Transmutation (PHB) Legacy

Classes Player’s Handbook (2014)

You are a student of spells that modify energy and matter. To you, the world is not a fixed thing, but eminently mutable, and you delight in being an agent of change. You wield the raw stuff of

creation and learn to alter both physical forms and mental qualities. Your magic gives you the tools to become a smith on reality’s forge. Some transmuters are tinkerers and pranksters, turning

Loadstone

Magic Items Tales from the Yawning Portal

. If you use the Dash or Disengage action while the stone is on your person, its curse activates. Until the curse is broken with remove curse or similar magic, your speed is reduced by 5 feet, and your maximum load and maximum lift capacities are halved. You also become unwilling to part with the stone.

Haint

Monsters Journeys through the Radiant Citadel

creature. Hit: 21 (4d8 + 3);{"diceNotation":"4d8+3","rollType":"damage","rollAction":"Sorrowful Touch","rollDamageType":"force"} psychic damage. Change Shape. The haint magically assumes the

appearance of the Humanoid it was in life, while retaining its game statistics. The assumed appearance ends if the haint is reduced to 0 hit points or uses an action to end it.Rising from the

Cloaker Mutate

Monsters Phandelver and Below: The Shattered Obelisk

with the Far Realm. Some creatures become mutates after prolonged exposure to Far Realm energy or magic drawn from that strange plane. Others deliberately change themselves, seeking to embrace the fell

powers they worship. Creatures that become mutates often inexplicably change back to their previous forms once the Far Realm influence abates. Forcing a transformation on creatures inexplicably fails

Night Hag (Coven Variant) Legacy

Monsters Monster Manual (2014)

(2d8 + 4);{"diceNotation":"2d8+4","rollType":"damage","rollAction":"Claws","rollDamageType":"slashing"} slashing damage. Change Shape. The hag magically polymorphs into a Small or Medium female

, the target has dreadful visions. If these visions last for at least 1 hour, the target gains no benefit from its rest, and its hit point maximum is reduced by 5 (1d10);{"diceNotation":"1d10","rollType

Draconian Dreadnought

Monsters Fizban's Treasury of Dragons

Death Throes. When the draconian is reduced to 0 hit points, it bursts into flames and is reduced to ashes. Each creature in a 10-foot-radius sphere centered on the draconian must succeed on a DC 13

. Their magical ability to change their appearance to mimic those they’ve slain allows them to sow confusion and despair among their enemies. When dreadnoughts are killed, their bodies burst into

Mold Earth

Spells Elemental Evil Player's Companion

difficult terrain. Alternatively, you can cause the ground to become normal terrain if it is already difficult terrain. This change lasts for 1 hour. If you cast this spell multiple times, you can have

appear on the dirt or stone, spelling out words, creating images, or shaping patterns. The changes last for 1 hour. If the dirt or stone you target is on the ground, you cause it to become

Bulezau Legacy

Monsters Mordenkainen’s Tome of Foes

become poisoned until the disease ends. While poisoned in this way, the target sports festering boils, coughs up flies, and sheds rotting skin, and the target must repeat the saving throw after every 24

hours that elapse. On a successful save, the disease ends. On a failed save, the target's hit point maximum is reduced by 4 (1d8);{"diceNotation":"1d8","rollType":"roll","rollAction":"Barbed Tail"}. The target dies if its hit point maximum is reduced to 0.PoisonCold, Fire, Lightning

Pale Tincture (Ingested) Legacy

Equipment

A creature subjected to this poison must succeed on a DC 16 Constitution saving throw or take 3 (1d6) poison damage and become poisoned. The poisoned creature must repeat the saving throw every 24

has a reduced effect, such as allowing advantage on the saving throw or dealing only half damage on a failed save.

Winter Eladrin

Monsters Mordenkainen Presents: Monsters of the Multiverse

ruled by emotion—and due to their magical nature, they undergo physical changes to match their changes in temperament. Eladrin have spent centuries in the Feywild, and most of them have become Fey

to their emotional state by transforming them into different seasonal aspects, with behaviors and abilities that change with their forms. Some eladrin might remain in a particular aspect for years

Living Demiplane

Monsters Icewind Dale: Rime of the Frostmaiden

and psychic damage, and immunity to bludgeoning, piercing, and slashing damage that is nonmagical. If any section is reduced to 0 hit points, the living spell and its chamber are destroyed (see

-foot-square section of its extradimensional chamber is reduced to 0 hit points, or when the living spell has no surface to attach to. When the living spell is destroyed, the contents of its

Runara

Monsters Dragons of Stormwreck Isle

to 60 feet away from Runara. Change Shape. Runara magically transforms into a Humanoid or Beast that is Medium or Small, while retaining her game statistics (other than her size). This transformation

ends if Runara is reduced to 0 hit points or uses a bonus action to end it.Despite her innocuous disguise and her commitment to peace, the leader of Dragon’s Rest is an adult bronze dragon&mdash

Nightwalker Legacy

Monsters Mordenkainen’s Tome of Foes

to this aura. Life Eater. A creature reduced to 0 hit points from damage dealt by the nightwalker dies and can't be revived by any means short of a wish spell.Multiattack. The nightwalker uses

on a DC 21 Constitution saving throw or its hit point maximum is reduced by an amount equal to the necrotic damage taken. This reduction lasts until the target finishes a long rest. Finger of Doom

Gynosphinx Legacy

Monsters Basic Rules (2014)

that every creature in the lair must succeed on a DC 15 Constitution saving throw or become 1d20;{"diceNotation":"1d20","rollType":"roll","rollAction":"Aging"} years older or younger (the sphinx&rsquo

moves up to 10 years forward or backward (sphinx’s choice). Only the sphinx is immediately aware of the time change. A wish spell can return the caster and up to seven other creatures designated by

D&D Beyond

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