monster starts with open after from for long

Hunger of Hadar

Spells Player’s Handbook

You open a gateway to the Far Realm, a region infested with unspeakable horrors. A 20-foot-radius Sphere of Darkness appears, centered on a point with range and lasting for the duration. The Sphere

within it have the Blinded condition. Any creature that starts its turn in the area takes 2d6 Cold damage. Any creature that ends its turn there must succeed on a Dexterity saving throw or take 2d6 Acid

Mordenkainen's Magnificent Mansion

Spells Player’s Handbook

cast the spell can enter the extradimensional dwelling as long as the door remains open. You can open or close it (no action required) if you are within 30 feet of it. While closed, the door is

Robe of Useful Items

Magic Items Dungeon Master’s Guide

100 GP 09–15 Silver coffer (1 foot long, 6 inches wide and deep) worth 500 GP 16–22 Iron door (up to 10 feet wide and 10 feet high, barred on one side of your choice), which

you can place in an opening you can reach; it conforms to fit the opening, attaching and hinging itself 23–30 10 gems worth 100 GP each 31–44 Wooden ladder (24 feet long

Pit Fiend

Monsters Monster Manual

Hells. Fear Aura. The pit fiend emanates an aura in a 20-foot Emanation while it doesn’t have the Incapacitated condition. Wisdom Saving Throw: DC 21, any enemy that starts its turn in the

"}. The pit fiend casts Fireball (level 5 version) twice, requiring no Material components and using Charisma as the spellcasting ability (spell save DC 21). It can replace one Fireball with Hold Monster (level 7 version) or Wall of Fire.Fire, PoisonCold

Adult Silver Dragon

Monsters Monster Manual

with spell attacks): At Will: Detect Magic, Hold Monster, Ice Knife, Shapechange (Beast or Humanoid form only, no Temporary Hit Points gained from the spell, and no Concentration or Temporary Hit

use to take one of the following actions. The dragon regains all expended uses at the start of each of its turns. Chill. The dragon uses Spellcasting to cast Hold Monster. The dragon can’t take

Ancient Silver Dragon

Monsters Monster Manual

uses Spellcasting to cast Hold Monster. The dragon can’t take this action again until the start of its next turn. Cold Gale. Dexterity Saving Throw: DC 23, each creature in a 60-foot-long, 10

":"Spellcasting"} to hit with spell attacks): At Will: Detect Magic, Hold Monster, Ice Knife (level 2 version), Shapechange (Beast or Humanoid form only, no Temporary Hit Points gained from the spell, and

Sea Hag

Monsters Monster Manual

finish a Long Rest before using this trait to cast that spell again. Vile Appearance. Wisdom Saving Throw: DC 11, any Beast or Humanoid that starts its turn within 30 feet of the hag and can see the hag

Colossus

Monsters Monster Manual

Advantage on saving throws against spells and other magical effects. Siege Monster. The colossus deals double damage to objects and structures.Multiattack. The colossus makes three attacks, using Slam or

"}. Dexterity Saving Throw: DC 26, each creature in a 300-foot-long, 10-foot-wide Line. Failure: 65 (10d12);{"diceNotation":"10d12", "rollType":"damage", "rollAction":"Divine Beam", "rollDamageType

Pipes of the Sewers

Magic Items Dungeon Master’s Guide

24 hours. On a failed save, the swarm is swayed by the pipes’ music and becomes Friendly to you and your allies for as long as you continue to play the pipes each round as a Magic action. A

Friendly swarm obeys your commands. If you issue no commands to a Friendly swarm, it defends itself but otherwise takes no actions. If a Friendly swarm starts its turn more than 30 feet away from you, your

Iron Flask

Magic Items Dungeon Master’s Guide

creature, but the only way to determine the type of creature is to open the flask. A newly discovered Iron Flask might already contain a creature chosen by the DM or determined randomly by rolling on

the following table (see the Monster Manual for the creature’s stat block). 1d100 Contents 0-50 No creature 51 Arcanaloth 52-54 Bone Devil 55-56 Cambion 57

Cloaker

Monsters Monster Manual

: The target is immune to this cloaker’s Moan for the next 24 hours. Phantasms (Recharge after a Short or Long Rest). The cloaker casts the Mirror Image spell, requiring no spell components and

using Wisdom as the spellcasting ability. The spell ends early if the cloaker starts or ends its turn in Bright Light.

Helm of Brilliance

Magic Items Dungeon Master’s Guide

Emanation is filled with Dim Light. Any Undead that starts its turn in that area takes 1d6 Radiant damage. Fire Opal Flames. As long as the helm has at least one fire opal, you can take a Magic action

. You gain the following benefits while wearing the helm. Diamond Light. As long as it has at least one diamond, the helm emits a 30-foot Emanation. When at least one Undead is within that area, the

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

: Half damage. Failure or Success: The target starts burning.2: Freezing Waves. Strength Saving Throw: DC 23, each creature in a 90-foot Cone. Failure: 22 (5d8);{"diceNotation":"5d8", "rollType":"damage

Prismatic Wall

Spells Player’s Handbook

A shimmering, multicolored plane of light forms a vertical opaque wall—up to 90 feet long, 30 feet high, and 1 inch thick—centered on a point within range. Alternatively, you shape the

harm. If another creature that can see the wall moves within 20 feet of it or starts its turn there, the creature must succeed on a Constitution saving throw or have the Blinded condition for 1 minute

Book of Vile Darkness

Magic Items Dungeon Master’s Guide

stone cracks and turns to powder if the book rests on it long enough. Whenever a creature that isn’t a Fiend or an Undead attunes to the Book of Vile Darkness, that creature makes a DC 17

remains with you only as long as you strive to work evil in the world. If you fail to perform at least one evil act within the span of 10 days, or if you willingly perform a good act, the book

Hat of Many Spells

Magic Items Dungeon Master’s Guide

its normal casting time, and you can’t use this property again until you finish a Short or Long Rest. On a failed check, you fail to cast the spell and a random effect occurs instead

, and attacks you. 91–95 A vertical, 10-foot-diameter, two-way portal to another plane of existence opens in an unoccupied space within 30 feet of you and remains open until the end of your

Book of Exalted Deeds

Magic Items Dungeon Master’s Guide

benefits. Other creatures that peruse the book’s open pages can read the text but glean no deeper meaning and reap no benefits. A Fiend, an Undead, or a servant of a god from the Lower Planes

last only as long as you strive to do good. If you fail to perform at least one act of kindness or generosity within the span of 10 days, or if you willingly perform an evil act, you lose all the

Boon of Terror

Feats Forgotten Realms: Heroes of Faerûn

Frightened condition. Flee, Fools! When a creature with the Frightened condition starts its turn within 60 feet of you, you can take a Reaction to stoke its terror, provided you can see the creature and it

the fastest available means. Once you use this benefit, you can’t use it again until you finish a Short or Long Rest. Intimidating. You gain Proficiency in the Intimidation skill if you don’t already have it. You also gain Expertise in Intimidation.

Vampire Warden

Monsters Astarion's Book of Hungers

damage if it starts its turn in sunlight. While in sunlight, it has Disadvantage on attack rolls and ability checks. Immobile Restoration. If the vampire drops to 0 Hit Points while it doesn’t

don’t live for long and are inattentive while sleeping or simpering. Monstrous servants are often too unpredictable or simply unreliable. To keep their lairs safe, some vampires create more

Vampire Infernalist

Monsters Astarion's Book of Hungers

vampire has the Incapacitated condition in its resting place, the vampire has the Paralyzed condition until the weapon is removed. Sunlight. The vampire takes 20 Radiant damage if it starts its turn in

sap the body and mind. Creatures (excluding the vampire and its allies) that finish a Short or Long Rest while within 1 mile of the lair make a DC 15 Wisdom saving throw. On a failed save, a creature

Crown of Horns

Magic Items Forgotten Realms: Adventures in Faerûn

the curse to you. Only a Wish spell or the will of Myrkul can remove this curse. As long as you remain cursed, the following properties apply to you: Bound. You are unwilling to part with the crown

crown, you emit an aura of terrifying energy in a 60-foot Emanation. A creature that enters this area for the first time on a turn or starts its turn there must succeed on a DC 16 Wisdom saving throw or

Kobold Inventor

Monsters Mordenkainen Presents: Monsters of the Multiverse

breaks open on impact. A swarm of rot grubs emerges from the shattered pot and remains a hazard in that square. Scorpion on a Stick. The kobold makes a melee attack with a scorpion (see the Monster

within 20 feet of it. A swarm of insects (centipedes);swarm of insects (centipedes; see the Monster Manual) with 11 hit points emerges from the basket and rolls initiative. At the end of each of the swarm

Elder Tempest

Monsters Mordenkainen Presents: Monsters of the Multiverse

in the area covered by the storm. The winds impose disadvantage on ranged attack rolls. The winds extinguish open flames and disperse fog. Siege Monster. The tempest deals double damage to objects

falls there, causing the area to be lightly obscured. Heavy rain also extinguishes open flames and imposes disadvantage on Wisdom (Perception) checks that rely on hearing. In addition, strong winds swirl

Woe Strider

Monsters Mythic Odysseys of Theros

Antimagic Cone. The woe strider's open mouth creates an area of antimagic, as in the antimagic field spell, in a 60-foot cone. At the start of each of its turns, the woe strider decides which way the

cone faces and whether its mouth is open or closed.Multiattack. The woe strider makes two claw attacks and one bite attack. If both claws hit the same creature, the target is grappled (escape DC 14

Magnificent Mansion Legacy

Spells Basic Rules (2014)

any creature you designate when you cast the spell can enter the extradimensional dwelling as long as the portal remains open. You can open or close the portal if you are within 30 feet of it. While

removed from the mansion. When the spell ends, any creatures or objects left inside the extradimensional space are expelled into the open spaces nearest to the entrance.

Elder Tempest Legacy

Monsters Mordenkainen’s Tome of Foes

winds impose disadvantage on ranged attack rolls. The winds extinguish open flames and disperse fog. Siege Monster. The tempest deals double damage to objects and structures.Multiattack. The tempest

obscured. Heavy rain also extinguishes open flames and imposes disadvantage on Wisdom (Perception) checks that rely on hearing. In addition, strong winds swirl in the area covered by the storm. The

Tree Blight

Monsters Curse of Strahd

succeed on a DC 18 Intelligence (Investigation) check to discern that the blight is animate. Siege Monster. The blight deals double damage to objects and structures.Multiattack. The blight makes one

or more slashing damage to it on one attack. Cutting the root doesn’t hurt the blight but ends the grapple.Blights (as described in the Monster Manual) are evil, ambulatory plant creatures, and

Bulezau

Monsters Mordenkainen Presents: Monsters of the Multiverse

Rotting Presence. When any creature that isn’t a demon starts its turn within 30 feet of the bulezau, that creature must succeed on a DC 13 Constitution saving throw or take 3 (1d6

);{"diceNotation":"1d6", "rollType":"damage", "rollAction":"Rotting Presence", "rollDamageType":"necrotic"} necrotic damage. Standing Leap. The bulezau’s long jump is up to 20 feet and its high jump is up

Eversmoking Bottle Legacy

Magic Items Basic Rules (2014)

as long as the bottle is open. Closing the bottle requires you to speak its command word as an action. Once the bottle is closed, the cloud disperses after 10 minutes. A moderate wind (11 to 20 miles

bottle. The cloud's area is heavily obscured. Each minute the bottle remains open and within the cloud, the radius increases by 10 feet until it reaches its maximum radius of 120 feet. The cloud persists

Hunger of Hadar Legacy

Spells Player’s Handbook (2014)

You open a gateway to the dark between the stars, a region infested with unknown horrors. A 20-foot-radius sphere of blackness and bitter cold appears, centered on a point with range and lasting for

fully within the area are blinded.The void creates a warp in the fabric of space, and the area is difficult terrain. Any creature that starts its turn in the area takes 2d6 cold damage. Any creature that

Harengon Sniper

Monsters The Wild Beyond the Witchlight

Standing Leap. The harengon’s long jump is up to 20 feet and its high jump is up to 10 feet, with or without a running start.Club. Melee Weapon Attack: +2;{"diceNotation":"1d20+2", "rollType

with these weapons. In addition, they can attack a target as far away as their weapons’ maximum range without needing to apply the usual penalty for attacking at long range. After a sniper makes

Goliath Werebear

Monsters Icewind Dale: Rime of the Frostmaiden

":"piercing"} piercing damage. If the target is a humanoid, it must succeed on a DC 15 Constitution saving throw or be cursed with werebear lycanthropy, as described in the Monster Manual. Claw (Bear or

(Recharges after a Short or Long Rest). When the werebear takes damage, it reduces the damage taken by 10 (1d12 + 4);{"diceNotation":"1d12+4","rollType":"roll","rollAction":"Stone"}.Goliath legends speak of

Rutterkin

Monsters Mordenkainen Presents: Monsters of the Multiverse

Immobilizing Fear. When a creature that isn’t a demon starts its turn within 30 feet of one or more rutterkins, that creature must make a DC 11 Wisdom saving throw. The creature has

disease or become poisoned. At the end of each long rest, the poisoned target can repeat the saving throw, ending the effect on itself on a success. If the target is reduced to 0 hit points while

Mordenkainen's Magnificent Mansion Legacy

Spells Player’s Handbook (2014)

any creature you designate when you cast the spell can enter the extradimensional dwelling as long as the portal remains open. You can open or close the portal if you are within 30 feet of it. While

removed from the mansion. When the spell ends, any creatures or objects left inside the extradimensional space are expelled into the open spaces nearest to the entrance.

Zone of Truth Legacy

Spells Basic Rules (2014)

the first time on a turn or starts its turn there must make a Charisma saving throw. On a failed save, a creature can't speak a deliberate lie while in the radius. You know whether each creature

succeeds or fails on its saving throw. An affected creature is aware of the spell and can thus avoid answering questions to which it would normally respond with a lie. Such a creature can be evasive in its answers as long as it remains within the boundaries of the truth.

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