choose were reduction

Demilich

Monsters Monster Manual

Legendary Resistance (3/Day, or 4/Day in Lair). If the demilich fails a saving throw, it can choose to succeed instead. Undead Restoration. If the demilich is destroyed, it reforms and regains all

DC 20 Constitution saving throw or have its Hit Point maximum reduced by 1d4;{"diceNotation":"1d4", "rollType":"roll", "rollAction":"Enervating Domain"}. This reduction lasts until the creature

Molydeus

Monsters Mordenkainen Presents: Monsters of the Multiverse

Legendary Resistance (3/Day). If the molydeus fails a saving throw, it can choose to succeed instead. Magic Resistance. The molydeus has advantage on saving throws against spells and other magical

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

Tempest Spirit

Monsters Bigby Presents: Glory of the Giants

":"Incorporeal Movement", "rollDamageType":"force"} force damage if it ends its turn inside an object. Legendary Resistance (3/Day). If the spirit fails a saving throw, it can choose to succeed

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

Drelnza

Monsters Quests from the Infinite Staircase

Legendary Resistance (3/Day). If Drelnza fails a saving throw, she can choose to succeed instead. Special Equipment. Drelnza wields Heretic. Spider Climb. Drelnza can climb difficult surfaces

, and Drelnza regains hit points equal to that amount. The reduction lasts until the target finishes a long rest. The target dies if this effect reduces its hit point maximum to 0. A Humanoid slain in

Daemogoth Titan

Monsters Strixhaven: A Curriculum of Chaos

Legendary Resistance (3/Day). If the titan fails a saving throw, it can choose to succeed instead. Pact of Suffering. Using a 10-minute long ritual, the titan can forge a magical bond with a willing

psychic damage equal to the total rolled, and its hit point maximum is reduced by an amount equal to the psychic damage taken. This reduction lasts until the creature finishes its next long rest. The

Molydeus (Summoner Variant)

Monsters Mordenkainen Presents: Monsters of the Multiverse

Legendary Resistance (3/Day). If the molydeus fails a saving throw, it can choose to succeed instead. Magic Resistance. The molydeus has advantage on saving throws against spells and other magical

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

Horrid Plant

Monsters Quests from the Infinite Staircase

Horrid Plant Varieties. A horrid plant comes in one of three varieties (choose or roll a d6;{"diceNotation":"1d6", "rollType":"roll", "rollAction":"Horrid Plant Varieties"}): 1–2, dew drinker

damage taken, and the horrid plant regains hit points equal to that amount. This reduction lasts until the target finishes a long rest. The target dies if this effect reduces its hit point maximum to 0.

Demogorgon

Monsters Mordenkainen Presents: Monsters of the Multiverse

Legendary Resistance (3/Day). If Demogorgon fails a saving throw, he can choose to succeed instead. Magic Resistance. Demogorgon has advantage on saving throws against spells and other magical

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

Demogorgon Legacy

Monsters Out of the Abyss

magic, major image 3/day each: dispel magic, fear, telekinesis 1/day each: feeblemind, project image Legendary Resistance (3/Day). If Demogorgon fails a saving throw, he can choose to succeed instead

"} 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

Kas the Betrayer

Monsters Vecna: Eve of Ruin

frightened condition. Legendary Resistance (3/Day). If Kas fails a saving throw, he can choose to succeed instead. Regeneration. Kas regains 20 hit points at the start of his turn if he has at least 1

points equal to that amount. The reduction lasts until the target finishes a long rest. The target dies if its hit point maximum is reduced to 0. A Humanoid slain in this way and then buried rises the

Obzedat Ghost

Monsters Guildmasters’ Guide to Ravnica

can choose to succeed instead.Life Drain. Melee Weapon Attack: +8;{"diceNotation":"1d20+8","rollType":"to hit","rollAction":"Life Drain"} to hit, reach 5 ft., one creature. Hit: 18 (4d8);{"diceNotation

succeed on a DC 13 Constitution saving throw or its hit point maximum is reduced by an amount equal to the damage taken. The target dies if its hit point maximum is reduced to 0. This reduction to

Geryon (Variant)

Monsters Mordenkainen Presents: Monsters of the Multiverse

Legendary Resistance (3/Day). If Geryon fails a saving throw, he can choose to succeed instead. Magic Resistance. Geryon has advantage on saving throws against spells and other magical effects

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

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

"} necrotic damage. The target’s hit point maximum is reduced by an amount equal to the necrotic damage taken, and Strahd regains a number of hit points equal to that amount. The reduction lasts until

Geryon

Monsters Mordenkainen Presents: Monsters of the Multiverse

Legendary Resistance (3/Day). If Geryon fails a saving throw, he can choose to succeed instead. Magic Resistance. Geryon has advantage on saving throws against spells and other magical effects

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

Dyrrn

Monsters Eberron: Rising from the Last War

creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success. Legendary Resistance (3/Day). If Dyrrn fails a saving throw, it can choose to succeed

each time it fails the saving throw for this lair action. The target dies if its Intelligence score is reduced to 0. The reduction lasts until the target finishes a short or long rest. Regional

Zorak Lightdrinker

Monsters Waterdeep: Dungeon of the Mad Mage

, Dexterity, and Constitution saving throws, and it is immune to all nonmagical damage, except the damage it takes from sunlight. Legendary Resistance (3/Day). If the Zorak fails a saving throw, he can choose

amount. The reduction lasts until the target finishes a long rest. The target dies if this effect reduces its hit point maximum to 0. A humanoid slain in this way and then buried in the ground rises

Valin Sarnaster

Monsters Candlekeep Mysteries

","rollType":"roll","rollAction":"Hit Point Reduction"} for every 24 hours that elapse. If the curse reduces the target’s hit point maximum to 0, the target dies, and its body turns to dust. The curse

, any non-undead creature that tries to cast a spell of 4th level or lower in Valin’s lair is wracked with pain. The creature can choose another action, but if it tries to cast the spell, it must

Keresta Delvingstone

Monsters Waterdeep: Dungeon of the Mad Mage

can choose to succeed instead. Misty Escape. When she drops to 0 hit points outside her resting place, Keresta transforms into a cloud of mist (as in the Shapechanger trait) instead of falling

points equal to that amount. The reduction lasts until the target finishes a long rest. The target dies if this effect reduces its hit point maximum to 0. A humanoid slain in this way and then buried in

Adult Topaz Dragon

Monsters Fizban's Treasury of Dragons

Resistance (3/Day). If the dragon fails a saving throw, it can choose to succeed instead.Multiattack. The dragon makes one Bite attack and two Claw attacks. Bite. Melee Weapon Attack: +9

actions at the start of its turn. Claw. The dragon makes one Claw attack. Psionics (Costs 2 Actions). The dragon uses Psychic Step or Spellcasting. Essential Reduction (Costs 3 Actions). The dragon

Ancient Topaz Dragon

Monsters Fizban's Treasury of Dragons

Resistance (3/Day). If the dragon fails a saving throw, it can choose to succeed instead.Multiattack. The dragon makes one Bite attack and two Claw attacks. Bite. Melee Weapon Attack: +12

spent legendary actions at the start of its turn. Claw. The dragon makes one Claw attack. Psionics (Costs 2 Actions). The dragon uses Psychic Step or Spellcasting. Essential Reduction (Costs 3

Strahd von Zarovich

Monsters Curse of Strahd

, except the damage he takes from sunlight. Legendary Resistance (3/Day). If Strahd fails a saving throw, he can choose to succeed instead. Misty Escape. When Strahd drops to 0 hit points outside his

reduction lasts until the target finishes a long rest. The target dies if its hit point maximum is reduced to 0. A humanoid slain in this way and then buried in the ground rises the following night as a

Aqua Expurgo

magic-items

Contamination levels, you can choose to succeed instead. You can use this ability three times, after which the effects of Aqua Expurgo expire. If the effects of Aqua Expurgo expire in this manner

. This reduction lasts until you finish a Long Rest. You die if this effect reduces your Hit Point maximum to 0. The Necrotic damage can’t be reduced or prevented by any means. Crafting. Creating

Enlarge/Reduce Legacy

Spells Basic Rules (2014)

You cause a creature or an object you can see within range to grow larger or smaller for the duration. Choose either a creature or an object that is neither worn nor carried. If the target is

damage. Reduce. The target's size is halved in all dimensions, and its weight is reduced to one-eighth of normal. This reduction decreases its size by one category--from Medium to Small, for example

Molydeus Legacy

Monsters Mordenkainen’s Tome of Foes

, polymorph, telekinesis, teleport 3/day: lightning bolt 1/day: imprisonment Legendary Resistance (3/Day). If the molydeus fails a saving throw, it can choose to succeed instead. Magic Resistance. The

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

Molydeus (Summoner Variant) Legacy

Monsters Mordenkainen’s Tome of Foes

, polymorph, telekinesis, teleport 3/day: lightning bolt 1/day: imprisonment Legendary Resistance (3/Day). If the molydeus fails a saving throw, it can choose to succeed instead. Magic Resistance. The

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

Vampire Legacy

Monsters Basic Rules (2014)

). If the vampire fails a saving throw, it can choose to succeed instead. Misty Escape. When it drops to 0 hit points outside its resting place, the vampire transforms into a cloud of mist (as in the

point maximum is reduced by an amount equal to the necrotic damage taken, and the vampire regains hit points equal to that amount. The reduction lasts until the target finishes a long rest. The target

Vampire Spellcaster Legacy

Monsters Monster Manual (2014)

throw, it can choose to succeed instead. Misty Escape. When it drops to 0 hit points outside its resting place, the vampire transforms into a cloud of mist (as in the Shapechanger trait) instead of

regains hit points equal to that amount. The reduction lasts until the target finishes a long rest. The target dies if this effect reduces its hit point maximum to 0. A humanoid slain in this way and

Vampire Warrior Legacy

Monsters Monster Manual (2014)

throw, it can choose to succeed instead. Misty Escape. When it drops to 0 hit points outside its resting place, the vampire transforms into a cloud of mist (as in the Shapechanger trait) instead of

, and the vampire regains hit points equal to that amount. The reduction lasts until the target finishes a long rest. The target dies if this effect reduces its hit point maximum to 0. A humanoid slain

Aberrant Dragonmark

feats Wayfinder's Guide to Eberron

. You learn a cantrip of your choice from the sorcerer spell list. In addition, choose a 1st-level spell from the sorcerer spell list. You learn that spell and can cast it through your mark. Once you

chooses it or determines it randomly. The character also permanently loses one of their Hit Dice, and their hit point maximum is reduced by an amount equal to a roll of that die plus their Constitution modifier (minimum reduction of 1). This reduction can’t be reversed by any means.

Geryon (Summoner Variant) Legacy

Monsters Mordenkainen’s Tome of Foes

(3/Day). If Geryon fails a saving throw, he can choose to succeed instead. Magic Resistance. Geryon has advantage on saving throws against spells and other magical effects. Magic Weapons. Geryon's

. This reduction lasts until the poisoned condition is removed. Teleport. Geryon magically teleports, along with any equipment he is wearing and carrying, up to 120 feet to an unoccupied space he can

Geryon Legacy

Monsters Mordenkainen’s Tome of Foes

(3/Day). If Geryon fails a saving throw, he can choose to succeed instead. Magic Resistance. Geryon has advantage on saving throws against spells and other magical effects. Magic Weapons. Geryon's

. This reduction lasts until the poisoned condition is removed. Teleport. Geryon magically teleports, along with any equipment he is wearing and carrying, up to 120 feet to an unoccupied space he can

Feat: Aberrant Dragonmark

Compendium - Sources->Dungeons & Dragons->Eberron: Rising from the Last War

: Increase your Constitution score by 1, to a maximum of 20. You learn a cantrip of your choice from the sorcerer spell list. In addition, choose a 1st-level spell from the sorcerer spell list. You learn

randomly. The character also permanently loses one of their Hit Dice, and their hit point maximum is reduced by an amount equal to a roll of that die plus their Constitution modifier (minimum reduction of 1). This reduction can’t be reversed by any means.

Feat: Aberrant Dragonmark

Compendium - Sources->Dungeons & Dragons->Eberron: Rising from the Last War

: Increase your Constitution score by 1, to a maximum of 20. You learn a cantrip of your choice from the sorcerer spell list. In addition, choose a 1st-level spell from the sorcerer spell list. You learn

randomly. The character also permanently loses one of their Hit Dice, and their hit point maximum is reduced by an amount equal to a roll of that die plus their Constitution modifier (minimum reduction of 1). This reduction can’t be reversed by any means.

Enlarge/Reduce

Compendium - Sources->Dungeons & Dragons->Player's Handbook (2014)

you can see within range to grow larger or smaller for the duration. Choose either a creature or an object that is neither worn nor carried. If the target is unwilling, it can make a Constitution

halved in all dimensions, and its weight is reduced to one-eighth of normal. This reduction decreases its size by one category—from Medium to Small, for example. Until the spell ends, the target also

Enlarge/Reduce

Compendium - Sources->Dungeons & Dragons->Player's Handbook (2014)

you can see within range to grow larger or smaller for the duration. Choose either a creature or an object that is neither worn nor carried. If the target is unwilling, it can make a Constitution

halved in all dimensions, and its weight is reduced to one-eighth of normal. This reduction decreases its size by one category—from Medium to Small, for example. Until the spell ends, the target also

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