both become driven could regain

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

water. Stake to the Heart. If a weapon that deals Piercing damage is driven into the vampire’s heart while the vampire has the Incapacitated condition in its resting place, the vampire has the

Monk

Classes Player’s Handbook

strength into their attacks, with or without the use of weapons. In a Monk’s hands, even the most basic weapons can become sophisticated implements of combat mastery. Many Monks find that a

to fuel their determination and discipline. Monks generally view adventures as tests of their physical and mental development. They are driven by a desire to accomplish a greater mission than merely

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

. You have Immunity to Poison damage and the Poisoned condition. Regeneration. If you start your turn with at least 1 Hit Point, you regain 1d10 Hit Points. Wish. You can cast Wish. Once used, this

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

. Running Water. The vampire takes 20 Acid damage if it ends its turn in running water. Stake to the Heart. If a weapon that deals Piercing damage is driven into the vampire’s heart while the

Sammaster (Lich Form)

Monsters Forgotten Realms: Adventures in Faerûn

Legendary Resistance (3/Day). If Sammaster fails a saving throw, he can choose to succeed instead. Life Suppression. Creatures within 60 feet of Sammaster can’t regain Hit Points. Magic

. His Cult of the Dragon devotes itself to helping evil dragons become dracoliches to bring this evil new age to fruition. Sammaster was killed in battle, but had prepared contingencies for his demise

Sammaster (Dracolich Form)

Monsters Forgotten Realms: Adventures in Faerûn

Legendary Resistance (3/Day). If Sammaster fails a saving throw, he can choose to succeed instead. Life Suppression. Creatures within 60 feet of Sammaster can’t regain Hit Points. Magic

rule Faerûn. His Cult of the Dragon devotes itself to helping evil dragons become dracoliches to bring this evil new age to fruition. Sammaster was killed in battle, but had prepared contingencies

Nupperibo

Monsters Mordenkainen Presents: Monsters of the Multiverse

suitable only to become nupperibos. These pitiful creatures shuffle across the landscape, driven to purposeful action only when the clouds of swarming vermin that surround them find them prey to destroy or

","rollType":"damage","rollAction":"Cloud of Vermin","rollDamageType":"acid"} acid damage. A creature within the areas of two or more nupperibos makes the saving throw with disadvantage. Driven

Barrowghast

Monsters Bigby Presents: Glory of the Giants

poisoned this way, the creature can’t regain hit points. On a successful save, the creature is immune to the Stench of all barrowghasts for 24 hours.Multiattack. The barrowghast makes two Slam

on a failed save, or half as much damage on a successful one.A hill giant who dies with an empty stomach, full of rage and regret, might become suffused with energy from the Negative Plane and rise as

Pipes of Haunting Legacy

Magic Items Basic Rules (2014)

within 30 feet of you that hears you play must succeed on a DC 15 Wisdom saving throw or become frightened of you for 1 minute. If you wish, all creatures in the area that aren't hostile toward you

saving throw is immune to the effect of these pipes for 24 hours. The pipes regain 1d3 expended charges daily at dawn.

Humanoid Mutate

Monsters Phandelver and Below: The Shattered Obelisk

as smooth as a salamander’s. Some intelligent Humanoid mutates retain their personalities from before they were exposed to the Far Realm. Some, driven by the allure of otherworldly powers, seek

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

Mummy Legacy

Monsters Basic Rules (2014)

cursed with mummy rot. The cursed target can't regain hit points, and its hit point maximum decreases by 10 (3d6);{"diceNotation":"3d6","rollType":"roll","rollAction":"Rotting Fist"} for every 24

Glare. The mummy targets one creature it can see within 60 feet of it. If the target can see the mummy, it must succeed on a DC 11 Wisdom saving throw against this magic or become frightened until the

Simulacrum Legacy

Spells Basic Rules (2014)

, moving and acting in accordance with your wishes and acting on your turn in combat. The simulacrum lacks the ability to learn or become more powerful, so it never increases its level or other

abilities, nor can it regain expended spell slots. If the simulacrum is damaged, you can repair it in an alchemical laboratory, using rare herbs and minerals worth 100 gp per hit point it regains. The

Deathlock

Monsters Mordenkainen Presents: Monsters of the Multiverse

that don’t please its patron fall away as its master’s desires become the purpose that drives it. The deathlock immediately resumes work on its patron’s behalf. Whatever the goal

, a foul Undead driven to serve its otherworldly patron. An powerful necromancer might also discover the wicked methods of creating a deathlock and then subjugate it, acting as the deathlock’s patron.PoisonNecrotic; Bludgeoning, Piercing, and Slashing from Nonmagical Attacks that aren't Silvered

Pit Fiend Legacy

Monsters Basic Rules (2014)

succeed on a DC 21 Constitution saving throw or become poisoned. While poisoned in this way, the target can't regain hit points, and it takes 21 (6d6);{"diceNotation":"6d6","rollType":"damage

Skeletal Knight

Monsters Dragonlance: Shadow of the Dragon Queen

can’t regain hit points until the start of the skeletal knight’s next turn. Throwing Axe. Melee or Ranged Weapon Attack: +8;{"diceNotation":"1d20+8", "rollType":"to hit", "rollAction

damage.Skeletal knights are powerful Undead that arise to serve even more wicked beings—often death knight;death knights. Those who become skeletal knights were typically virtuous in life but betrayed

Vampire Spawn Legacy

Monsters Basic Rules (2014)

vampire takes 20 acid damage when it ends its turn in running water. Stake to the Heart. The vampire is destroyed if a piercing weapon made of wood is driven into its heart while it is incapacitated in

increase in the populations of bats, rats, and wolves in the region. Plants within 500 feet of the lair wither, and their stems and branches become twisted and thorny. Shadows cast within 500 feet

Cloaker Mutate

Monsters Phandelver and Below: The Shattered Obelisk

poisoned condition for 1 minute. While poisoned in this way, a creature can’t regain hit points. Tail. Melee Weapon Attack: +8;{"diceNotation":"1d20+8", "rollType":"to hit", "rollAction":"Tail"} to

metamorphosis as the powers of the Far Realm rewrite the fundamentals of the creature’s existence. Any creature can become a mutate and transform to exhibit physical characteristics associated

Eyedrake

Monsters Fizban's Treasury of Dragons

", "rollAction":"", "rollDamageType":"thunder"} thunder damage and become incapacitated until the end of its next turn. 3: Repulsion Ray. The target must succeed on a DC 14 Strength saving throw or take 14

thoughts of its dragon rival can become deeply obsessive, eventually pervading the beholder;beholder's dreams. If the rivalry lasts long enough, these fevered dreams can manifest as an eyedrake—a

Silverquill Pledgemage

Monsters Strixhaven: A Curriculum of Chaos

weaves together stirring prose, allowing the creature to reroll the saving throw and use the higher result.Stylish and driven, the students of Silverquill College—first as silverquill apprentice

target must succeed on a DC 13 Wisdom saving throw or become frightened of the pledgemage for 1 minute. While frightened in this way, the target can’t take reactions, its speed is halved, and

Deathlock Mastermind

Monsters Mordenkainen Presents: Monsters of the Multiverse

become restrained as shadowy tendrils wrap around it for 1 minute. A restrained target can use its action to repeat the saving throw, ending the effect on itself on a success. Spellcasting. The

to live up to a bargain with an evil patron runs the risk of rising from the dead as a deathlock, a foul Undead driven to serve its otherworldly patron. An powerful necromancer might also discover

Tlacatecolo

Monsters Journeys through the Radiant Citadel

damage and become poisoned. While poisoned in this way, the creature can’t regain hit points. At the end of every hour, the creature must succeed on a DC 13 Constitution saving throw or gain 1

Mummy Lord Legacy

Monsters Basic Rules (2014)

","rollDamageType":"necrotic"} necrotic damage. If the target is a creature, it must succeed on a DC 16 Constitution saving throw or be cursed with mummy rot. The cursed target can't regain hit points

of it. If the target can see the mummy lord, it must succeed on a DC 16 Wisdom saving throw against this magic or become frightened until the end of the mummy's next turn. If the target fails the

Hutijin Legacy

Monsters Mordenkainen’s Tome of Foes

target must succeed on a DC 22 Constitution saving throw or become poisoned. While poisoned in this way, the target can't regain hit points, and it takes 10 (3d6);{"diceNotation":"3d6","rollType

DC 22). He can innately cast the following spells, requiring no material components: At will: alter self (can become Medium when changing his appearance), animate dead, detect magic, hold monster

Pit Fiend (Summoner Variant) Legacy

Monsters Monster Manual (2014)

succeed on a DC 21 Constitution saving throw or become poisoned. While poisoned in this way, the target can't regain hit points, and it takes 21 (6d6);{"diceNotation":"6d6","rollType":"damage

Death Saving Throws Legacy

Rules

successes and failures don't need to be consecutive; keep track of both until you collect three of a kind. The number of both is reset to zero when you regain any hit points or become stable.

roll is 10 or higher, you succeed. Otherwise, you fail. A success or failure has no effect by itself. On your third success, you become stable (see below). On your third failure, you die. The

Phantom Warrior

Monsters Curse of Strahd

soldier or knight who perished on the battlefield or died performing its sworn duty. It appears like a translucent version of its living self. Task Driven. Although one is often mistaken for a ghost, a

energy surrounds a phantom warrior's ghostly armor, shields, and weapons, which become as hard as steel yet don't impede the warrior's ability to move through walls and other solid objects. Undead

Needle Lord

Monsters Mordenkainen's Fiendish Folio Volume 1

thirst for violence and conquest that propels the fey to war. These plants become needle lords—ogre-shaped masses of thorny vines covered with long, cruel needles that pierce flesh. A needle lord

implacable foe. Driven only by a desire to conquer and rule, it wages endless war with its army of mobile dead against all creatures it views as a threat to its domination. It might even forge treaties with

Neothelid

Monsters Mordenkainen Presents: Monsters of the Multiverse

external assault, and the elder brain is killed, the colony’s tadpoles are suddenly freed from their fate. They no longer serve as food—and are no longer fed by their caretakers. Driven by

larger than a few inches in length without being implanted in a brain so they can’t become such threats. Neothelids are not intelligent enough for elder brains to detect, so mind flayers are

Fazrian

Monsters Waterdeep: Dungeon of the Mad Mage

initiative count 20 on the next round. No creature within 120 feet of the planetar can regain hit points until the effect ends. Fazrian's eyes become smoldering black voids until initiative count 20

Doomwake Giant

Monsters Mythic Odysseys of Theros

","rollAction":"Aura of Erebos","rollDamageType":"necrotic"} necrotic damage and can’t regain hit points until the start of its next turn. On a successful saving throw, the creature is immune to the

typically roam to the edges of the world, where they either fade away over time or become legends that take on their own terrible life. A spectrum of giants claims territory across Theros, drawing

Neogi Hatchling Swarm

Monsters Spelljammer: Adventures in Space

versa, and the swarm can move through any opening large enough for a Tiny neogi hatchling. The swarm can’t regain hit points or gain temporary hit points.Swarm of Bites. Melee Weapon Attack: +3

has half of its hit points or fewer, and the target must succeed on a DC 12 Constitution saving throw or become poisoned for 1 minute. A target can repeat the saving throw at the end of each of its

Fog Giant

Monsters Mordenkainen's Fiendish Folio Volume 1

cloud giants in the ordning—the set of values and expectations that determines their rank in giant society—is driven by wealth. Those cloud giants foolish or unlucky enough to have their

treasure plundered fall to the bottom of the ordning, becoming outcasts known as fog giants. Cut off from their proper place in society, they become raiders and marauders who seek to reclaim their

Ygorl, Lord of Entropy

Monsters Mordenkainen's Fiendish Folio Volume 1

entropy, delighting and furthering the destruction it brings. Cycles of Chaos. As a personification of entropy, Ygorl is cursed to see things as they will become—broken and consumed by the march

of eternity. It has no sense of empathy or compassion, driven only to unmake so that the resulting base elements of reality can fuel the multiverse’s endless cycles of creation and destruction

Swarm of Cranium Rats

Monsters Mordenkainen Presents: Monsters of the Multiverse

Swarm. The swarm can occupy another creature’s space and vice versa, and the swarm can move through any opening large enough for a Tiny rat. The swarm can’t regain hit points or gain

constituents. The rats become smarter as a result, and retain their heightened intelligence for as long as the swarm persists. The swarm also awakens latent psionic abilities implanted within each cranium

Diderius

Monsters Tyranny of Dragons

"} necrotic damage. If the target is a creature, it must succeed on a DC 16 Constitution saving throw or be cursed with mummy rot. The cursed target can’t regain hit points, and its hit point maximum

can see Diderius, it must succeed on a DC 16 Wisdom saving throw against this magic or become frightened until the end of Diderius’s next turn. If the target fails the saving throw by 5 or more

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