both bat diffusing chance reduced

Potion of Longevity

Magic Items Dungeon Master’s Guide

When you drink this potion, your physical age is reduced by 1d6 + 6 years, to a minimum of 13 years. Each time you subsequently drink a Potion of Longevity, there is 10 percent cumulative chance that

Vampire

Monsters Monster Manual

DC 14) from one of two hands. Bite (Bat or Vampire Form Only). Constitution Saving Throw: DC 17, one creature within 5 feet that is willing or that has the Grappled, Incapacitated, or Restrained

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

from the eye (save DC 18). The table indicates how many charges you must expend to cast the spell. Each time you cast a spell from the eye, there is a 5 percent chance that Vecna tears your soul from

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

Wish

Spells Player’s Handbook

cast a spell until you finish a Long Rest, you take 1d10 Necrotic damage per level of that spell. This damage can’t be reduced or prevented in any way. In addition, your Strength score becomes 3

for 2d4 days. For each of those days that you spend resting and doing nothing more than light activity, your remaining recovery time decreases by 2 days. Finally, there is a 33 percent chance that you are unable to cast Wish ever again if you suffer this stress.

Vampire Warrior Legacy

Monsters Monster Manual (2014)

Shapechanger. If the vampire isn't in sunlight or running water, it can use its action to polymorph into a Tiny bat or a Medium cloud of mist, or back into its true form. While in bat form, the

target (escape DC 18). Bite (Bat or Vampire Form Only). Melee Weapon Attack: +9;{"diceNotation":"1d20+9","rollType":"to hit","rollAction":"Bite"} to hit, reach 5 ft., one willing creature, or a creature

Orcus Figurine

Magic Items Candlekeep Mysteries

praying to Orcus for at least 1 hour has a 10 percent chance of summoning a smoky avatar of the demon lord. Once this avatar is summoned, it can’t be summoned again for 30 days. Orcus’s

avatar has the statistics of a wraith except that it’s chaotic evil. It attacks all non-undead creatures it encounters, and it disappears after 1 hour or when reduced to 0 hit points.

Vampire Legacy

Monsters Basic Rules (2014)

Shapechanger. If the vampire isn’t in sunlight or running water, it can use its action to polymorph into a Tiny bat or a Medium cloud of mist, or back into its true form. While in bat form

damage. Instead of dealing damage, the vampire can grapple the target (escape DC 18). Bite. (Bat or Vampire Form Only). Melee Weapon Attack: +9;{"diceNotation":"1d20+9","rollType":"to hit","rollAction

Vampire Spellcaster Legacy

Monsters Monster Manual (2014)

Shapechanger. If the vampire isn't in sunlight or running water, it can use its action to polymorph into a Tiny bat or a Medium cloud of mist, or back into its true form. While in bat form, the

). Bite. (Bat or Vampire Form Only). Melee Weapon Attack: +9;{"diceNotation":"1d20+9","rollType":"to hit","rollAction":"Bite"} to hit, reach 5 ft., one willing creature, or a creature that is grappled by

Chasme (summoner variant) Legacy

Monsters Monster Manual (2014)

"} necrotic damage, and the target’s hit point maximum is reduced by an amount equal to the necrotic damage taken. If this effect reduces a creature’s hit point maximum to 0, the creature dies

chooses what to summon and attempts a magical summoning. A chasme has a 30 percent;{"diceNotation":"1d100","rollType":"roll","rollAction":"Summon Demon"} chance of summoning one chasme. A summoned demon

Nevermind Gnome Inventor

Monsters Monstrous Compendium Vol. 2: Dragonlance Creatures

throw or have its speed reduced to 0 until the start of the inventor’s next turn. Thunderscream Gadget (Recharge 5–6);{"diceNotation":"1d6", "rollType":"recharge", "rollAction":"Thunderscream

on a DC 14 Dexterity saving throw or be blinded until the end of its next turn.Brimming with innovative ideas and reckless enthusiasm, the inventors of Mount Nevermind love any chance to showcase their

Lorehold Professor of Chaos

Monsters Strixhaven: A Curriculum of Chaos

saving throw or be restrained for 1 minute, but the restrained target’s speed is halved instead of being reduced to 0. At the start of each of its turns, the restrained target takes 4 (1d8

effect on itself on a success.Professors of chaos wield magic inspired by the ebb and flow of chance. They study the course history has taken, looking for breaking points in the flow of events, and focus

Zorak Lightdrinker

Monsters Waterdeep: Dungeon of the Mad Mage

Shapechanger. If Zorak isn't in sunlight or running water, he can use his action to polymorph into a Tiny bat or a Medium cloud of mist, or back into his true form. While in bat form, Zorak can't

":"1d8+4","rollType":"damage","rollAction":"Unarmed Strike","rollDamageType":"bludgeoning"} bludgeoning damage. Instead of dealing damage, Zorak can grapple the target (escape DC 18). Bite. (Bat or Vampire

Aberrant Dragonmark

Feats Wayfinder's Guide to Eberron

, a character who has the Aberrant Dragonmark feat has a chance of manifesting greater power. Upon reaching 10th level, such a character has a 10 percent chance of gaining an epic boon from among the

options in chapter 7 of the Dungeon Master’s Guide. If the character fails to gain a boon, they have a 10 percent chance the next time they gain a level. If the character gains a boon, the DM

Drow Inquisitor (Summoner Variant) Legacy

Monsters Mordenkainen’s Tome of Foes

plus 18 (4d8);{"diceNotation":"4d8","rollType":"damage","rollAction":"Death Lance","rollDamageType":"necrotic"} necrotic damage. The target's hit point maximum is reduced by an amount equal to the

necrotic damage it takes. This reduction lasts until the target finishes a long rest. The target dies if its hit point maximum is reduced to 0. Summon Demon (1/Day). The drow attempts to magically summon a

Drow Inquisitor

Monsters Mordenkainen Presents: Monsters of the Multiverse

", "rollDamageType":"necrotic"} necrotic damage. The target’s hit point maximum is reduced by an amount equal to the necrotic damage taken. This reduction lasts until the target finishes a long rest

. The target dies if its hit point maximum is reduced to 0. Spellcasting. The drow casts one of the following spells, requiring no material components and using Charisma as the spellcasting ability

Imix

Monsters Princes of the Apocalypse

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

","rollDamageType":"fire"} fire damage. Creatures that take fire damage from this effect gain one level of exhaustion. In addition, there is a fifty percent chance ;{"diceNotation":"1d100","rollType

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

itself on a success. Otherwise, the effect lasts 24 hours or until Strahd is reduced to 0 hit points, is on a different plane of existence than the target, or uses a bonus action to end the effect

Drow Inquisitor (Summoner Variant)

Monsters Mordenkainen Presents: Monsters of the Multiverse

", "rollDamageType":"necrotic"} necrotic damage. The target’s hit point maximum is reduced by an amount equal to the necrotic damage taken. This reduction lasts until the target finishes a long rest

. The target dies if its hit point maximum is reduced to 0. Spellcasting. The drow casts one of the following spells, requiring no material components and using Charisma as the spellcasting ability

Keresta Delvingstone

Monsters Waterdeep: Dungeon of the Mad Mage

Shapechanger. If Keresta isn't in sunlight or running water, she can use her action to polymorph into a Tiny bat or a Medium cloud of mist, or back into her true form. While in bat form, Keresta

. (Bat or Vampire Form Only). Melee Weapon Attack: +9;{"diceNotation":"1d20+9","rollType":"to hit","rollAction":"Bite"} to hit, reach 5 ft., one willing creature, or a creature that is grappled by Keresta

Yan-C-Bin

Monsters Princes of the Apocalypse

is reduced to 0 hit points.Yan-C-Bin can take 3 legendary actions, choosing from the options below. Only one legendary action option can be used at a time and only at the end of another creature

beneath the open sky have a five percent;{"diceNotation":"1d100","rollType":"roll","rollAction":"Thunderstorm Chance"} chance of being struck by lightning. A creature struck by lightning must make a

Molydeus (Summoner Variant) Legacy

Monsters Mordenkainen’s Tome of Foes

or its hit point maximum is reduced by an amount equal to the damage taken. This reduction lasts until the target finishes a long rest. The target transforms into a manes if this reduces its hit

Demon"} chance of summoning its choice of 1d6;{"diceNotation":"1d6","rollType":"roll","rollAction":"Summon Demon"} babau;babaus, 1d4;{"diceNotation":"1d4","rollType":"roll","rollAction":"Summon Demon

Molydeus

Monsters Mordenkainen Presents: Monsters of the Multiverse

maximum is reduced by an amount equal to the damage taken. This reduction lasts until the target finishes a long rest. The target transforms into a manes (see the Monster Manual) if this reduces its hit

). As an action, the molydeus has a 50 percent chance of summoning its choice of 1d6;{"diceNotation":"1d6","rollType":"roll","rollAction":"Summon Demon"} babau;babaus, 1d4 chasme;chasmes, or one marilith

Demogorgon

Monsters Mordenkainen Presents: Monsters of the Multiverse

maximum is reduced by an amount equal to the damage taken. This reduction lasts until the target finishes a long rest. The target dies if its hit point maximum is reduced to 0. Gaze. Demogorgon turns his

hitting him with an attack), there is a 50 percent chance that the illusory duplicate is affected, not Demogorgon, in which case the illusion disappears. Regional Effects The region containing Demogorgon

Strahd von Zarovich

Monsters Curse of Strahd

Shapechanger. If Strahd isn’t in running water or sunlight, he can use his action to polymorph into a Tiny bat, a Medium wolf, or a Medium cloud of mist, or back into his true form. While in

bat or wolf form, Strahd can’t speak. In bat form, his walking speed is 5 feet, and he has a flying speed of 30 feet. In wolf form, his walking speed is 40 feet. His statistics, other than his

Orcus

Monsters Mordenkainen Presents: Monsters of the Multiverse

rot. Great bat wings sprout from his shoulders, and his head is like the skull of a goat, the flesh nearly rotted from it. In one hand, he wields the legendary Wand of Orcus, which is described in the

(Recharges after a Short or Long Rest). If this creature is reduced to 0 hit points, it immediately makes a DC 10 Constitution saving throw. If it succeeds, it is instead reduced to 1 hit point. Aura

Molydeus (Summoner Variant)

Monsters Mordenkainen Presents: Monsters of the Multiverse

maximum is reduced by an amount equal to the damage taken. This reduction lasts until the target finishes a long rest. The target transforms into a manes (see the Monster Manual) if this reduces its hit

Summon Demon (1/Day). As an action, the molydeus has a 50 percent chance of summoning its choice of 1d6;{"diceNotation":"1d6","rollType":"roll","rollAction":"Summon Demon"} babau;babaus, 1d4 chasme;chasmes

Wish Legacy

Spells Basic Rules (2014)

, each time you cast a spell until you finish a long rest, you take 1d10 necrotic damage per level of that spell. This damage can't be reduced or prevented in any way. In addition, your Strength drops

to 3, if it isn't 3 or lower already, for 2d4 days. For each of those days that you spend resting and doing nothing more than light activity, your remaining recovery time decreases by 2 days. Finally, there is a 33 percent chance that you are unable to cast wish ever again if you suffer this stress.

Darkweaver

Monsters Planescape: Adventures in the Multiverse

if the target is a creature, the target’s hit point maximum is reduced by an amount equal to the necrotic damage taken. This reduction lasts until the target finishes a long rest. The target

dies if its hit point maximum is reduced to 0. Shadow Web. Ranged Weapon Attack: +7;{"diceNotation":"1d20+7", "rollType":"to hit", "rollAction":"Shadow Web"} to hit, reach 120 ft., one creature. Hit: 16

Demogorgon Legacy

Monsters Out of the Abyss

"} bludgeoning damage. If the target is a creature, it must succeed on a DC 23 Constitution saving throw or its hit point maximum is reduced by an amount equal to the damage taken. This reduction lasts

until the target finishes a long rest. The target dies if its hit point maximum is reduced to 0. Gaze. Demogorgon turns his magical gaze toward one creature that he can see within 120 feet of him. That

Cloud Giant Destiny Gambler

Monsters Bigby Presents: Glory of the Giants

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, the giant can inscribe a cloud rune on a mask in its possession when it finishes

games of chance and wit. A destiny gambler is a cloud giant who has won increasingly high-stakes wagers against other giants, smaller folk, and even beings from the Outer Planes. Destiny gamblers wear

Olhydra

Monsters Princes of the Apocalypse

hit points for each elemental she summons. Summoned elementals have maximum hit points, appear within 100 feet of Olhydra, and disappear if Olhydra is reduced to 0 hit points.Olhydra can take 3

in the black depths of vast seas or enthroned among jagged reefs. Olhydra waits for the chance to enter the Material Plane through elemental water nodes or when called by the proper rituals. Whether

Puzzle Features

Compendium - Sources->Dungeons & Dragons->Tasha’s Cauldron of Everything

, respectively. Each lock has a creature molded in iron above it: a bat, snake, spider, or wolf, respectively. These locks can’t be picked. If anything other than the correct key is placed inside a lock

, creatures corresponding to the image above the lock (1d4 giant bats, 1d4 giant poisonous snakes, 1d4 giant wolf spiders, or 1d4 wolves) are summoned into the room. Each summoned creature is hostile and disappears after 10 minutes or when reduced to 0 hit points. These beasts can’t be charmed or frightened.

Puzzle Features

Compendium - Sources->Dungeons & Dragons->Tasha’s Cauldron of Everything

, respectively. Each lock has a creature molded in iron above it: a bat, snake, spider, or wolf, respectively. These locks can’t be picked. If anything other than the correct key is placed inside a lock

, creatures corresponding to the image above the lock (1d4 giant bats, 1d4 giant poisonous snakes, 1d4 giant wolf spiders, or 1d4 wolves) are summoned into the room. Each summoned creature is hostile and disappears after 10 minutes or when reduced to 0 hit points. These beasts can’t be charmed or frightened.

Puzzle Features

Compendium - Sources->Dungeons & Dragons->Tasha’s Cauldron of Everything

, respectively. Each lock has a creature molded in iron above it: a bat, snake, spider, or wolf, respectively. These locks can’t be picked. If anything other than the correct key is placed inside a lock

, creatures corresponding to the image above the lock (1d4 giant bats, 1d4 giant poisonous snakes, 1d4 giant wolf spiders, or 1d4 wolves) are summoned into the room. Each summoned creature is hostile and disappears after 10 minutes or when reduced to 0 hit points. These beasts can’t be charmed or frightened.

Potion of Longevity

Compendium - Sources->Dungeons & Dragons->Dungeon Master’s Guide (2014)

Potion of Longevity Potion, very rare When you drink this potion, your physical age is reduced by 1d6 + 6 years, to a minimum of 13 years. Each time you subsequently drink a potion of longevity

, there is 10 percent cumulative chance that you instead age by 1d6 + 6 years. Suspended in this amber liquid are a scorpion’s tail, an adder’s fang, a dead spider, and a tiny heart that, against all reason, is still beating. These ingredients vanish when the potion is opened.

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