before book device check repeat

Book of Vile Darkness

Magic Items Dungeon Master’s Guide

cast that spell again from it until the next dawn. Vile Lore. You can reference the Book of Vile Darkness whenever you make an Intelligence check to recall information about some aspect of evil, such as

lore about demons. When you do so, you have Advantage on that check. At the DM’s discretion, the book might reveal secrets no mortal should know, such as the true names of powerful Fiends

Demonomicon of Iggwilv

Magic Items Dungeon Master’s Guide

) check related to the Abyss. When you do so, you gain Advantage on the check. Containment. The first ten pages of the Demonomicon are blank. As a Magic action while holding the book, you can target a

. The tome recounts both the oldest and most current profanities of the Abyss and demons. Demons have attempted to censor the text, and while sections have been ripped from the book’s spine, the

Rope of Entanglement

Magic Items Dungeon Master’s Guide

’s space) or by using a Bonus Action to repeat the command (causing the rope to coil up in your hand). A target Restrained by the rope can take an action to make its choice of a DC 15 Strength

(Athletics) or Dexterity (Acrobatics) check. On a successful check, the target is no longer Restrained by the rope. If you’re still holding onto the rope when a target escapes from it, you can take

Symbol

Spells Player’s Handbook

You inscribe a harmful glyph either on a surface (such as a section of floor or wall) or within an object that can be closed (such as a book or chest). The glyph can cover an area no larger than 10

. The glyph is nearly imperceptible and requires a successful Wisdom (Perception) check against your spell save DC to notice. When you inscribe the glyph, you set its trigger and choose which effect the

Glyph of Warding

Spells Player’s Handbook

You inscribe a glyph that later unleashes a magical effect. You inscribe it either on a surface (such as a table or a section of floor) or within an object that can be closed (such as a book or chest

spell ends without being triggered. The glyph is nearly imperceptible and requires a successful Wisdom (Perception) check against your spell save DC to notice. When you inscribe the glyph, you set

Control Water

Spells Player’s Handbook

repeat the same effect or choose a different one. Flood. You cause the water level of all standing water in the area to rise by as much as 20 feet. If you choose an area in a large body of water, you

takes 2d8 Bludgeoning damage. On a successful save, the creature takes half as much damage. A creature can swim away from the whirlpool only if it first takes an action to pull away and succeeds on a Strength (Athletics) check against your spell save DC.

Mechanical Wonder

Magic Items Forgotten Realms: Heroes of Faerûn

check it makes with a Musical Instrument or Tinker's Tools. Sprint. The wonder takes the Dash action. Gyrocopter Wonder (Rare). This wagon-sized vehicle is made of brassy metal and has a spiral-shaped

resembles a metal turtle shell with straps. It is designed to be worn on your back or flank, depending on your anatomy. Once wound, the mobility wonder transforms into a personal transport device and

Animated Chained Library

Monsters Candlekeep Mysteries

succeed on a DC 15 Wisdom (Perception) check to discern that the library is animate.Multiattack. The library makes two attacks. Chained Book. Melee Weapon Attack: +4;{"diceNotation":"1d20+4","rollType

":"to hit","rollAction":"Chained Book"} to hit, reach 5 ft., one target. Hit: 6 (1d8 + 2);{"diceNotation":"1d8+2","rollType":"damage","rollAction":"Chained Book","rollDamageType":"bludgeoning

Robot Controller

Equipment

communicate remotely with each other through the device. Whenever the charmed Construct takes damage, it can repeat the saving throw, ending the effect on itself on a success. Disrupt. Constructs of

This small handheld device features a glass pane with a glowing display that responds to your touch. The controller is powered by an energy cell stored in the device. Placing a full energy cell in

Swarm of Animated Books

Monsters Candlekeep Mysteries

succeed on a DC 15 Wisdom (Perception) check to discern that the swarm is animate. Swarm. The swarm can occupy another creature’s space and vice versa, and the swarm can move through any opening

","rollType":"to hit","rollAction":"Book Club"} to hit, reach 0 ft., one target in the swarm’s space. Hit: 6 (2d4 + 1);{"diceNotation":"2d4+1","rollType":"damage","rollAction":"Book Club","rollDamageType

Crog's Guide to Disarming Magic Traps

Equipment

This book describes various mundane techniques and theories related to foiling magic traps. If you spend 48 hours studying this book, you learn how to overcome certain types of magic traps with your

thieves’ tools. If a trap’s magic can be dispelled or suppressed by a dispel magic spell, you can make a Dexterity check using thieves’ tools to achieve the same result. The DC of

Mimir

Magic Items Planescape: Adventures in the Multiverse

successful unarmed strike against AC 22 or a successful DC 22 Dexterity (Acrobatics) check. You can use a bonus action to seize and stow the device. The device has AC 22, 25 hit points, immunity to

This skull-shaped device is filled with knowledge. The device weighs 5 pounds and is covered with subtle etchings of planar sigils. As a bonus action, you can toss the device into the air, whereupon

Book of Vile Darkness Legacy

Magic Items Dungeon Master’s Guide (2014)

can’t use this property again until the next dawn. Dark Lore. You can reference the Book of Vile Darkness whenever you make an Intelligence check to recall information about some aspect of evil

, such as lore about demons. When you do so, double your proficiency bonus on that check. Dark Speech. While you carry the Book of Vile Darkness and are attuned to it, you can use an action to recite

Duplicitous Manuscript

Magic Items Tasha’s Cauldron of Everything

book. The new spell must be of the illusion school. When a creature you can see makes an Intelligence (Investigation) check to discern the true nature of an illusion spell you cast, or makes a saving

To you, this book is a magical spellbook. To anyone else, the book appears to be a volume of verbose romance fiction. As an action, you can change the book’s appearance and alter the plot of

Ashyra's Research Notes

Equipment

reviewing the notes and repeat the check. If the check is related to necromancy magic, you have advantage when you reroll it.

Ashyra;Ashyra's research notes about magic and necromancy are organized and indexed. When you fail an Intelligence (Arcana) check to recall lore, you can spend 1 hour during a short or long rest

Book of Vile Darkness (Variant)

Magic Items Keys from the Golden Vault

property again until the next dawn. Dark Lore. You can reference the Book of Vile Darkness whenever you make an Intelligence check to recall information about some aspect of evil, such as lore about

demons. When you do so, double your proficiency bonus on that check. Dark Speech. While you carry the Book of Vile Darkness and are attuned to it, you can use an action to recite words from its pages in a

Chronolometer

Magic Items Acquisitions Incorporated

While attuned to this device, you have a +1 bonus to Intelligence saving throws. The first time you attune to the chronolometer, you choose one language you don’t know. You subsequently know

that language while attuned to the device. Time Bandit. At the start of your turn, roll a d6 (no action required). On a 1–3, you slow down time, gaining an additional action on your turn and

Battle Master's Compendium

Equipment

Written by Bloodlord Varrox, Battle Master’s Compendium is a military treatise. Each of its thirteen chapters covers a different skill related to military strategy and tactics. The book’s

detailed analysis covers military units, weapons, strategy, rank, discipline, and much more. When you study a chapter in the book for 1 hour during a short or long rest, you learn interesting

Gnome Ceremorph

Monsters Icewind Dale: Rime of the Frostmaiden

(4d8 + 4);{"diceNotation":"4d8+4","rollType":"damage","rollAction":"Mind Blast","rollDamageType":"psychic"} psychic damage and be stunned for 1 minute. A creature can repeat the saving throw at the end

ceremorph often carries a home-built device that functions as a laser pistol (see “Firearms” in the Dungeon Master’s Guide). This weapon is powered by an energy cell, which enables

Nass Lantomir's Ghost

Monsters Icewind Dale: Rime of the Frostmaiden

; 10 years. A frightened target can repeat the saving throw at the end of each of its turns, ending the frightened condition on itself on a success. If the target’s saving throw is successful or

and headed toward the Sea of Moving Ice, hoping to find a tome called The Codicil of White, a book of magic and lore composed by servants of Auril the Frostmaiden. The Arcane Brotherhood believes that

Noisemaker

Equipment

This small mechanical device is a specialty of gnomish crafters. As a Utilize action, you can throw the Noisemaker into a space within 60 feet. When it lands, it makes a loud noise of some kind

within 60 feet of the device when it goes off must succeed in a DC 10 Wisdom saving throw. On a failed save, the creature has the Frightened condition for one minute. As an Influence action, another

Horizon Puzzle Cube

Magic Items Bigby Presents: Glory of the Giants

work and a successful DC 25 Intelligence (Investigation) check. When the cube is solved, a 30-foot-diameter portal appears before the creature who solved the cube, leading to the northeastern platform

Horizon’s Edge, but a device somewhere in the demiplane allows a cube to function in reverse while the cube is fitted into it.

Demonomicon of Iggwilv Legacy

Magic Items Tasha’s Cauldron of Everything

do so, you can add double your proficiency bonus to the check. Fiendish Scourging. Your magic causes pain to fiends. While carrying the book, when you make a damage roll for a spell you cast against

recounts both the oldest and most current profanities of the Abyss and demons. Demons have attempted to censor the text, and while sections have been ripped from the book’s spine, the general

Iggwilv the Witch Queen

Monsters The Wild Beyond the Witchlight

damage and be frightened of Iggwilv for 1 minute. A target can repeat the save at the end of each of its turns, ending the effect on itself on a success and thereby becoming immune to Iggwilv’s Dark

fey spirit. While possessed, the target must obey Iggwilv’s commands. The target can repeat the saving throw at the end of each of its turns, banishing the fey spirit and ending the effect on

Ettercap Legacy

Monsters Basic Rules (2014)

Spider Climb. The ettercap can climb difficult surfaces, including upside down on ceilings, without needing to make an ability check. Web Sense. While in contact with a web, the ettercap knows the

. The target must succeed on a DC 11 Constitution saving throw or be poisoned for 1 minute. The creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a

Ettercap (variant) Legacy

Monsters Monster Manual (2014)

Spider Climb. The ettercap can climb difficult surfaces, including upside down on ceilings, without needing to make an ability check. Web Sense. While in contact with a web, the ettercap knows the

damage. The target must succeed on a DC 11 Constitution saving throw or be poisoned for 1 minute. The creature can repeat the saving throw at the end of each of its turns, ending the effect on itself

Wheel of Stars

Magic Items Acquisitions Incorporated

While attuned to this device, you have a +1 bonus to Wisdom saving throws, and you can use an action to cast the dancing lights, guidance, or message cantrips. Portent of the Stars. As a reaction

when a creature you can see within 60 feet of you makes an attack roll, saving throw, or ability check, you make that creature roll a d10 and add or subtract the number rolled (your choice) from the

Vecna the Archlich

Monsters Vecna: Eve of Ruin

minute. On a successful save, the creature takes half as much damage only. A frightened creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success

has no effect. If the spell is 5th level or higher, Vecna makes an Intelligence check (DC 10 plus the spell’s level). On a successful check, the spell fails and has no effect. Whatever the spell

Reduced-threat Ettercap

Monsters Tales from the Yawning Portal

Spider Climb. The ettercap can climb difficult surfaces, including upside down on ceilings, without needing to make an ability check. Web Sense. While in contact with a web, the ettercap knows the

repeat the saving throw at the end of each of its turns, ending the effect on itself on a success. Claws. Melee Weapon Attack: +2;{"diceNotation":"1d20+2","rollType":"to hit","rollAction":"Claws"} to hit

Bearded Devil Legacy

Monsters Basic Rules (2014)

":"piercing"} piercing damage, and the target must succeed on a DC 12 Constitution saving throw or be poisoned for 1 minute. While poisoned in this way, the target can't regain hit points. The target can repeat

":"Glaive"}. Any creature can take an action to stanch the wound with a successful DC 12 Wisdom (Medicine) check. The wound also closes if the target receives magical healing.Fire, PoisonCold; Bludgeoning, Piercing, and Slashing from Nonmagical Attacks that aren't Silvered

Ancient Blue Dragon Legacy

Monsters Basic Rules (2014)

that is within 120 feet of the dragon and aware of it must succeed on a DC 20 Wisdom saving throw or become frightened for 1 minute. A creature can repeat the saving throw at the end of each of its

end of another creature's turn. The dragon regains spent legendary actions at the start of its turn. Detect. The dragon makes a Wisdom (Perception) check. Tail Attack. The dragon makes a tail

Adult Blue Dragon Legacy

Monsters Basic Rules (2014)

that is within 120 feet of the dragon and aware of it must succeed on a DC 17 Wisdom saving throw or become frightened for 1 minute. A creature can repeat the saving throw at the end of each of its

of another creature's turn. The dragon regains spent legendary actions at the start of its turn. Detect. The dragon makes a Wisdom (Perception) check. Tail Attack. The dragon makes a tail attack

Animated Staff of Frost

Monsters Waterdeep: Dungeon of the Mad Mage

to water and is destroyed. Charm. A creature can grab the staff out of the air with a successful grapple check against the staff, and grappling the staff does not reduce the creature's speed. Any

can issue commands to it, which the creature does its best to obey. The creature can repeat the saving throw each time it takes damage, ending the effect on itself on a success. A creature that

Sea Hag Legacy

Monsters Basic Rules (2014)

. On a failed save, the creature is frightened for 1 minute. A creature can repeat the saving throw at the end of each of its turns, with disadvantage if the hag is within line of sight, ending the

action to visually inspect the illusion and succeed on a DC 16 Intelligence (Investigation) check to discern that the hag is disguised.

Mizzium Apparatus

Magic Items Guildmasters’ Guide to Ravnica

Innovation is a dangerous pursuit, at least the way the mages of the Izzet League engage in it. As protection against the risk of an experiment going awry, they have developed a device to help

slot to cast the spell as normal, but before resolving it you must make an Intelligence (Arcana) check. The DC is 10 + twice the level of the spell slot you expend to cast the spell. On a successful

D&D Beyond

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