benefit both diffusing contain reduced

Mummy Lord

Monsters Monster Manual

":"Necrotic"} Necrotic damage. If the target is a creature, it is cursed. While cursed, the target can’t regain Hit Points, it gains no benefit from finishing a Long Rest, and its Hit Point

maximum decreases by 10 (3d6);{"diceNotation":"3d6", "rollType":"roll", "rollAction":"Rotting Fist"} every 24 hours that elapse. A creature dies and turns to dust if reduced to 0 Hit Points by this attack

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

maximum of 24. You can’t gain this benefit from the book more than once. Enlightened Magic. After you spend the requisite amount of time reading and studying the book, any spell slot you expend to

Boon of Recovery

Feats Player’s Handbook

reduced to 0 Hit Points, you can drop to 1 Hit Point instead and regain a number of Hit Points equal to half your Hit Point maximum. Once you use this benefit, you can’t use it again until you

Tharashk Hunter

Monsters Eberron: Forge of the Artificer

);{"diceNotation":"3d8+4", "rollType":"damage", "rollAction":"Longbow", "rollDamageType":"Piercing"} Piercing damage, and the target’s Speed is reduced by 10 feet until the end of its next turn.Uncanny

Advantage on attack rolls against the target, and the target gains no benefit from the Invisible condition against the hunter.

Boon of the Soul Drinker

Feats Forgotten Realms: Heroes of Faerûn

Resistance to Cold damage and Necrotic damage. Siphon Life. When an enemy within 120 feet of you is reduced to 0 Hit Points, you can take a Reaction to regain 50 Hit Points. Once you use this benefit, you can’t use it again until you finish a Short or Long Rest.

Greater Mark of Hospitality

Feats Eberron: Forge of the Artificer

. Improved Intuition. When you use the Ever Hospitable benefit of your Mark of Hospitality feat, you can roll 1d6 instead of 1d4. Improved Hospitality. When you cast Purify Food and Drink, you can modify the

spell so that instead of its normal effect, each creature of your choice within 30 feet of you is refreshed. Each affected creature’s Exhaustion level is reduced by 1, and the creature gains

Night Hag Legacy

Monsters Basic Rules (2014)

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

Night Hag (Coven Variant) Legacy

Monsters Monster Manual (2014)

, 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

Ingot of the Skold Rune

Magic Items Storm King's Thunder

, other than yourself. Until the end of your next turn, any damage the target takes is reduced to 1, but you take half the damage prevented in this way. The damage you take can’t be reduced in

ingot is destroyed, and the rune appears in silver on the chosen item, which gains a benefit based on its form: Shield. The shield is now a rare magic item that requires attunement. Its magic gives

Ashen Knight

Monsters Keys from the Golden Vault

Ashen Creature. When the knight drops to 0 hit points, it is reduced to a pile of ash, and any equipment it was wearing or carrying falls to the ground. Brave. The knight has advantage on saving

can see within 30 feet of it makes an attack roll or a saving throw. The creature can add a d4 to its roll provided it can hear and understand the knight. A creature can benefit from only one

Reduced-threat Darkmantle

Monsters Tales from the Yawning Portal

stalagmite. Reduced Threat. This creature has -2 penalty on all ability checks and saving throws.Crush. Melee Weapon Attack: +3;{"diceNotation":"1d20+3","rollType":"to hit","rollAction":"Crush"} to

becomes 0, it can't benefit from any bonus to its speed, and it moves with the target. A creature can detach the darkmantle by making a successful DC 11 Strength check as an action. On its turn, the

Book of Exalted Deeds Legacy

Magic Items Dungeon Master’s Guide (2014)

from the book takes 24d6 radiant damage. This damage ignores resistance and immunity, and can’t be reduced or avoided by any means. A creature reduced to 0 hit points by this damage disappears

Wisdom score increases by 2, to a maximum of 24. You can’t gain this benefit from the book more than once. Enlightened Magic Once you’ve read and studied the book, any spell slot you

Constructed Commoner

Monsters Candlekeep Mysteries

Unusual Nature. The commoner doesn’t require air, food, drink, or sleep, and it gains no benefit from finishing a short or long rest. When it drops to 0 hit points, it becomes a lifeless

village a few days later. If the mannequin is disintegrated or reduced to ashes, it is not replaced and the population of the village permanently decreases by one.Poison

Shard of the Ise Rune

Magic Items Storm King's Thunder

mantle of protection. The next time within the next minute that the target takes bludgeoning, slashing, or piercing damage, that damage is reduced to 0, and the mantle is destroyed. Once you use this

transfer takes 8 hours of work that requires the two items to be within 5 feet of each other. At the end, the shard is destroyed, and the rune appears in blue on the chosen item, which gains a benefit

Wandering Eye

magic-items

extended and used in this way, the eye has an Armor Class;AC of 20 and 6 Hit Points. If it is forced to make an ability check or a saving throw, it uses your statistics. If it is reduced to 0 Hit

Points, you cannot benefit from any of the eye’s properties until you finish a Short Rest;Short or Long Rest, after which it regains all lost Hit Points. Third Eye. When you make a Wisdom

Leviathan

Monsters Mordenkainen Presents: Monsters of the Multiverse

leviathan partially freezes; until the end of its next turn, its speeds are reduced to 20 feet, and it makes attack rolls with disadvantage. Siege Monster. The leviathan deals double damage to objects and

gigantic serpent. Usually found only on the Elemental Plane of Water, a leviathan sometimes swims through a portal to another world, where tritons, sea elves, and other aquatic folk attempt to contain it

Strahd Zombie

Monsters Curse of Strahd

decapitated. If the zombie is reduced to 0 hit points, all parts of it die. Until then, a severed part acts on the zombie’s initiative and has its own action and movement. A severed part has AC 8. Any

legs, it falls prone. If it has both arms, it can crawl. With only one arm, it can still crawl, but its speed is halved. With no arms or legs, its speed is 0 feet, and it can’t benefit from

Enucleator Modifications

Equipment

damage, they are reduced to 1 hit point instead. Once this effect is triggered, the creature can’t benefit from this modification again until they finish a long rest. Tentacle Arms. One or more of

essential organ, granting them advantage on death saving throws. Relentless Toughness. The creature is infused with troll essence. If they are reduced to 0 hit points by damage other than acid or fire

Aspect of Bahamut

Monsters Fizban's Treasury of Dragons

Platinum Brilliance (Recharges after a Short or Long Rest). If the aspect would be reduced to 0 hit points, his current hit point total instead resets to 500 hit points, he recharges his Breath

allies enjoy the full benefit of his mercy. His breath can wreak monumental destruction and work miraculous healing, and few things in the mortal world can cause him lasting harm.Acid, Cold, Fire

Relentless Juggernaut

Monsters Van Richten’s Guide to Ravenloft

":"damage","rollAction":"Slice","rollDamageType":"piercing"} piercing damage, and if the target is a creature, its speed is reduced by 10 feet until the start of the juggernaut’s next turn. Fist. Melee

its birth, and its wicked nature emerged over time. 4 A wicked place or magic relic seeped into its being, turning it into a monster. 5 The killer used its body to contain an evil entity

Fractine

Monsters Monstrous Compendium Vol. 1: Spelljammer Creatures

indestructible and opaque walls, and is only as big as it needs to be to contain the target, which doesn’t suffer from hunger or thirst while imprisoned. No other creature can enter the demiplane

, and the fractine can’t be harmed from within the demiplane. The fractine can imprison only one creature at a time and can release that creature as a bonus action. If the fractine is reduced

Fire Giant Forgecaller

Monsters Bigby Presents: Glory of the Giants

necrotic, poison, and psychic damage. The object regains all its hit points at the end of every turn, but it turns to dust if reduced to 0 hit points or when the giant dies. If the rune is destroyed

. A forgecaller is a walking furnace, clad head to toe in plate armor that seems to barely contain intense heat and billowing smoke. They conjure waves of magma and can fly by jetting magical fire from

Adult Lunar Dragon

Monsters Spelljammer: Adventures in Space

","rollDamageType":"cold"} cold damage, and its speed is reduced to 0 until the end of its next turn. On a successful save, the creature takes half as much damage, and its speed isn’t

contains ample space for food, as well as one or more hidden chambers where the dragon keeps its treasure. Depending on the composition and features of the moon, the lair might contain natural springs

Ancient Lunar Dragon

Monsters Spelljammer: Adventures in Space

Breath","rollDamageType":"cold"} cold damage, and its speed is reduced to 0 until the end of its next turn. On a successful save, the creature takes half as much damage, and its speed isn’t

contain natural springs and heat vents, wild gardens, crystal formations, magical phenomena, or an ecosystem of lesser life forms that have adapted to living with the dragon. Regional Effects The region

Geryon (Variant)

Monsters Mordenkainen Presents: Monsters of the Multiverse

long rest. The target’s hit point maximum is reduced by an amount equal to half the poison damage taken. This reduction lasts until the poisoned condition is removed. The target dies if its hit

point maximum is reduced to 0. Spellcasting. Geryon casts one of the following spells, requiring no material components and using Charisma as the spellcasting ability (spell save DC 21): At will

Ogrémoch

Monsters Princes of the Apocalypse

disappear if Ogrémoch is reduced to 0 hit points.Ogrémoch can take 3 legendary actions, choosing from the options below. Only one legendary action option can be used at a time and only at

, and the affected creature can’t benefit from being invisible. Stomp (Costs 2 Actions). Ogrémoch stomps the ground, creating an earth tremor that extends in a 30-foot radius. Other

Geryon

Monsters Mordenkainen Presents: Monsters of the Multiverse

long rest. The target’s hit point maximum is reduced by an amount equal to half the poison damage taken. This reduction lasts until the poisoned condition is removed. The target dies if its hit

point maximum is reduced to 0. Spellcasting. Geryon casts one of the following spells, requiring no material components and using Charisma as the spellcasting ability (spell save DC 21): At will

Geryon Legacy

Monsters Mordenkainen’s Tome of Foes

become poisoned until it finishes a short or long rest. The target's hit point maximum is reduced by an amount equal to half the poison damage it takes. If its hit point maximum drops to 0, it dies

. Howls and screams fill the air within 1 mile of the lair. Any creature that finishes a short or long rest in this area must succeed on a DC 21 Wisdom saving throw or derive no benefit from the rest

Geryon (Summoner Variant) Legacy

Monsters Mordenkainen’s Tome of Foes

become poisoned until it finishes a short or long rest. The target's hit point maximum is reduced by an amount equal to half the poison damage it takes. If its hit point maximum drops to 0, it dies

must succeed on a DC 21 Wisdom saving throw or derive no benefit from the rest. If Geryon dies, these effects fade over the course of 1d10;{"diceNotation":"1d10","rollType":"roll"} days.Cold, Fire, PoisonBludgeoning, Piercing, and Slashing from Nonmagical Attacks that aren't Silvered

Priest of Osybus (Blazing)

Monsters Van Richten’s Guide to Ravenloft

one of the Dark Powers, and he and the other Dark Powers had conjured up a misty prison to contain the newly immortal Strahd, thereby preventing the count from serving as the conquering force that the

to 0 hit points, the priest might revive with a benefit from the Boons of Undeath table. You can give a priest one or more of these boons of your choice before the priest faces adventurers. If you do

Priest of Osybus (Deathly)

Monsters Van Richten’s Guide to Ravenloft

. Osybus had not lied; he had himself become one of the Dark Powers, and he and the other Dark Powers had conjured up a misty prison to contain the newly immortal Strahd, thereby preventing the count

. Boons of Undeath When a priest of Osybus drops to 0 hit points, the priest might revive with a benefit from the Boons of Undeath table. You can give a priest one or more of these boons of your choice

Priest of Osybus (Ectoplasmic)

Monsters Van Richten’s Guide to Ravenloft

other Dark Powers had conjured up a misty prison to contain the newly immortal Strahd, thereby preventing the count from serving as the conquering force that the priests sought to loose upon the world

revive with a benefit from the Boons of Undeath table. You can give a priest one or more of these boons of your choice before the priest faces adventurers. If you do so, the priest is Undead, rather than

Priest of Osybus (Spectral)

Monsters Van Richten’s Guide to Ravenloft

conjured up a misty prison to contain the newly immortal Strahd, thereby preventing the count from serving as the conquering force that the priests sought to loose upon the world; thus they were denied

name, for they know it is his original deathly gift that gives them their horrific powers. Boons of Undeath When a priest of Osybus drops to 0 hit points, the priest might revive with a benefit from

Priest of Osybus (Vampiric)

Monsters Van Richten’s Guide to Ravenloft

. But they were then betrayed. Osybus had not lied; he had himself become one of the Dark Powers, and he and the other Dark Powers had conjured up a misty prison to contain the newly immortal Strahd

their horrific powers. Boons of Undeath When a priest of Osybus drops to 0 hit points, the priest might revive with a benefit from the Boons of Undeath table. You can give a priest one or more of

Nafas

Monsters Quests from the Infinite Staircase

of twinkling stardust follows Nafas wherever he goes, as evidence of his cosmic might. No bottle, vase, ring, or lamp can contain Nafas. The genie is bound to the Infinite Staircase itself, anchored

;s or his allies’ actions don’t gain this benefit, instead falling as normal. Wishful Winds. The wishes of creatures across the multiverse, including those within the Infinite Staircase

D&D Beyond

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