mechanical such with only are fails for lasts

Hag Eye

Magic Items Dungeon Master’s Guide

the Hag Eye sees if the hag and the Hag Eye are on the same plane of existence. This effect lasts as long as the hag maintains Concentration. Multiple hags in the coven can see through the Hag Eye

the Incapacitated condition. If the hags take any other actions during this rite, the rite fails and ends.

Contagion

Spells Player’s Handbook

successes or failures. If the target succeeds on three of these saves, the spell ends on the target. If the target fails three of the saves, the spell lasts for 7 days on it. Whenever the Poisoned target

Ancient Copper Dragon

Monsters Monster Manual

Legendary Resistance (4/Day, or 5/Day in Lair). If the dragon fails a saving throw, it can choose to succeed instead.Multiattack. The dragon makes three Rend attacks. It can replace one attack with a

, not both. This effect lasts until the end of its next turn. Spellcasting. The dragon casts one of the following spells, requiring no Material components and using Charisma as the spellcasting

Adult Copper Dragon

Monsters Monster Manual

Legendary Resistance (3/Day, or 4/Day in Lair). If the dragon fails a saving throw, it can choose to succeed instead.Multiattack. The dragon makes three Rend attacks. It can replace one attack with a

, not both. This effect lasts until the end of its next turn. Spellcasting. The dragon casts one of the following spells, requiring no Material components and using Charisma as the spellcasting

Tsunami

Spells Player’s Handbook

A wall of water springs into existence at a point you choose within range. You can make the wall up to 300 feet long, 300 feet high, and 50 feet thick. The wall lasts for the duration. When the wall

creature must succeed on a Strength (Athletics) check against your spell save DC to move at all. If it fails the check, it can’t move. A creature that moves out of the wall falls to the ground.

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

Elemental Cataclysm

Monsters Monster Manual

). If the cataclysm fails a saving throw, it can choose to succeed instead. Siege Monster. The cataclysm deals double damage to objects and structures.Multiattack. The cataclysm makes two Elemental Burst

fills a 60-foot-radius Sphere centered on a point the cataclysm can see within 150 feet. The cloud lasts for 1 minute or until the cataclysm uses Cataclysmic Event again. Creatures entirely in the

Prismatic Wall

Spells Player’s Handbook

wall into a globe up to 30 feet in diameter centered on a point within range. The wall lasts for the duration. If you position the wall in a space occupied by a creature, the spell ends instantly

end of each of its turns. If it successfully saves three times, the condition ends. If it fails three times, it has the Petrified condition until it is freed by an effect like the Greater Restoration

Doomtide

Spells Forgotten Realms: Heroes of Faerûn

You create a 20-foot-radius Sphere of inky fog within range. The fog is magical Darkness and lasts for the duration or until a strong wind (such as the one created by the Gust of Wind spell

this casting contributes to another casting of Doomtide as a Circle spell. When the spell is cast, each secondary caster must expend a level 3+ spell slot; otherwise, the spell fails.

Valindra Shadowmantle

Monsters Forgotten Realms: Adventures in Faerûn

Legendary Resistance (4/Day or 5/Day in Lair). If Valindra fails a saving throw, she can choose to succeed instead. Spirit Gem. If destroyed, Valindra re-forms in 1d10;{"diceNotation":"1d10

ability as Spellcasting. The spell lasts until Valindra drops to 30 Hit Points or fewer or uses her Life-Rending Gaze Legendary Action. Intelligence (Investigation) checks made to discern her true appearance are made with Disadvantage.

Potion of Mind Control

Magic Items Tales from the Yawning Portal

potion of mind control produces the effect of a dominate beast, a dominate person (humanoid), or a dominate monster spell (see the table below). If the target’s initial saving throw fails, the

effect lasts for 1 hour, with no concentration required on your part. The charmed creature has disadvantage on new saving throws to break the effect during this time. Potion of &hellip

Blade Scout

Monsters Vecna: Eve of Ruin

);{"diceNotation":"1d8+5", "rollType":"damage", "rollAction":"Bolt Launcher", "rollDamageType":"piercing"} piercing damage. Snare Trap (1/Day). The scout deploys a Tiny mechanical trap on a solid surface within

5 feet of itself. The trap is hidden, requiring a successful DC 17 Intelligence (Investigation) check to find. The trap lasts for 1 minute. Whenever an enemy enters a space within 10 feet of the trap

Hexton Modron

Monsters Planescape: Adventures in the Multiverse

hexton dies, its body disintegrates into dust, leaving behind anything it was carrying. Legendary Resistance (4/Day). If the hexton fails a saving throw, it can choose to succeed instead.Multiattack

spell. If the spell is 3rd level or lower, it fails and has no effect. If the spell is 4th level or higher, the hexton makes an Intelligence check (DC 10 + the spell’s level). On a success, the

Mummy Legacy

Monsters Basic Rules (2014)

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 lasts until removed by the remove curse spell or other magic. Dreadful

end of the mummy's next turn. If the target fails the saving throw by 5 or more, it is also paralyzed for the same duration. A target that succeeds on the saving throw is immune to the Dreadful Glare

Medusa Legacy

Monsters Basic Rules (2014)

’t incapacitated and can see the creature. If the saving throw fails by 5 or more, the creature is instantly petrified. Otherwise, a creature that fails the save begins to turn to stone and is

restrained. The restrained creature must repeat the saving throw at the end of its next turn, becoming petrified on a failure or ending the effect on a success. The petrification lasts until the

Vampiric Jade Statue

Monsters Ghosts of Saltmarsh

Immutable Form. The statue is immune to any spell or effect that would alter its form. Legendary Resistance (3/Day). If the statue fails a saving throw, it can choose to succeed instead.Multiattack

statue. The curse lasts for 10 minutes. While the creature is cursed, the statue has advantage on all attacks against it. Claws. Melee Weapon Attack: +6;{"diceNotation":"1d20+6","rollType":"to hit

Tsunami Legacy

Spells Player’s Handbook (2014)

A wall of water springs into existence at a point you choose within range. You can make the wall up to 300 feet long, 300 feet high, and 50 feet thick. The wall lasts for the duration.When the wall

the force of the wave, though, the creature must make a successful Strength (Athletics) check against your spell save DC in order to move at all. If it fails the check, it can’t move. A creature that moves out of the area falls to the ground.

Bestow Curse Legacy

Spells Basic Rules (2014)

attack rolls against you. While cursed, the target must make a Wisdom saving throw at the start of each of its turns. If it fails, it wastes its action that turn doing nothing. While the target is cursed

spell slot, the spell lasts until it is dispelled. Using a spell slot of 5th level or higher grants a duration that doesn't require concentration.

Marut

Monsters Mordenkainen Presents: Monsters of the Multiverse

Immutable Form. The marut is immune to any spell or effect that would alter its form. Legendary Resistance (3/Day). If the marut fails a saving throw, it can choose to succeed instead. Magic

Concordance is an embassy of pure law in Sigil, the City of Doors. In the hall, parties who agree to mutual terms—and who pay the requisite gold to the Kolyarut, a mechanical engine of absolute

Enhanced Medusa

Monsters Infernal Machine Rebuild

incapacitated and can see the creature. If the saving throw fails by 5 or more, the creature is instantly petrified. Otherwise, a creature that fails the save begins to turn to metal, wood, or porcelain

petrification lasts until the creature is freed by the greater restoration spell or other magic. Unless surprised, a creature can avert its eyes to avoid the saving throw at the start of its turn. If the

Gloine Nathair-Nathair

Monsters Lost Laboratory of Kwalish

incapacitated and can see the creature. If the saving throw fails by 5 or more, the creature is instantly petrified. Otherwise, a creature that fails the save begins to turn to glass and is restrained

. The restrained creature must repeat the saving throw at the end of its next turn, becoming petrified on a failure or ending the effect on a success. The petrification lasts until the creature is freed

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

Marlos Urnrayle

Monsters Princes of the Apocalypse

shunted into the nearest space he last occupied. Legendary Resistance (2/Day). If Marlos fails a saving throw, he can choose to succeed instead. Petrifying Gaze. When a creature that can see Marlos&rsquo

;s eyes starts its turn within 30 feet of him, Marlos can force it to make a DC 14 Constitution saving throw if Marlos isn’t incapacitated and can see the creature. If the saving throw fails by

Chief Kartha-Kaya

Monsters Storm King's Thunder

Possession (Recharges after a Short or Long Rest). The yakfolk attempts to magically possess a humanoid or giant. The yakfolk must touch the target throughout a short rest, or the attempt fails. At

proficiencies. The possession lasts until either the body drops to 0 hit points, the yakfolk ends the possession as an action, or the yakfolk is forced out of the body by an effect such as the dispel evil and

Ghost Legacy

Monsters Basic Rules (2014)

of the ghost that can see it must succeed on a DC 13 Wisdom saving throw or be frightened for 1 minute. If the save fails by 5 or more, the target also ages 1d4;{"diceNotation":"1d4","rollType":"roll

lasts until the body drops to 0 hit points, the ghost ends it as a bonus action, or the ghost is turned or forced out by an effect like the dispel evil and good spell. When the possession ends, the

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

attempts to magically summon a yochlol (see the Monster Manual), with a 50 percent chance of success. If the attempt fails, the drow takes 5 (1d10);{"diceNotation":"1d10", "rollType":"damage

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

Dyrrn

Monsters Eberron: Rising from the Last War

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

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

Medusa (Theran variant)

Monsters Mythic Odysseys of Theros

incapacitated and can see the creature. If the saving throw fails by 5 or more, the creature is instantly petrified. Otherwise, a creature that fails the save begins to turn to stone and is restrained

. The restrained creature must repeat the saving throw at the end of its next turn, becoming petrified on a failure or ending the effect on a success. The petrification lasts until the creature is freed

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

, true seeing Summon Demon (1/Day). The drow attempts to magically summon a yochlol (see the Monster Manual), with a 50 percent chance of success. If the attempt fails, the drow takes 5 (1d10

Centaur Mummy

Monsters Tales from the Yawning Portal

the target's hit point maximum to 0, the target dies, and its body turns to dust. The curse lasts until removed by the remove curse spell or similar magic. Dreadful Glare. The centaur mummy targets one

next turn. If the target fails the saving throw by 5 or more, it is also paralyzed for the same duration. A target that succeeds on the saving throw is immune to the Dreadful Glare of all mummies (but

Ebondeath

Monsters Divine Contention

object. Legendary Resistance (3/Day). If the dragon fails a saving throw, it can choose to succeed instead.Withering Touch. Melee Weapon Attack: +5;{"diceNotation":"1d20+5","rollType":"to hit","rollAction

. If the save fails by 5 or more, the target also ages 1d4;{"diceNotation":"1d4","rollType":"roll","rollAction":"Horrifying Visage"} × 10 years. A frightened target can repeat the saving throw at the

Specter of Night

Monsters Monstrous Compendium Vol. 4: Eldraine Creatures

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

. A creature marked for death can’t regain hit points, has disadvantage on death saving throws, and all attack rolls against it are made with advantage. This effect lasts for 1 minute or until

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

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

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