been before device check required

Ancient Copper Dragon

Monsters Monster Manual

Concentration or Temporary Hit Points required to maintain the spell)1/Day Each: Greater Restoration, Major Image, Project ImageLegendary Action Uses: 3 (4 in Lair). Immediately after another creature’s

turn, the target rolls 1d8;{"diceNotation":"1d8", "rollType":"roll", "rollAction":"Giggling Magic"} whenever it makes an ability check or attack roll and subtracts the number rolled from the D20 Test

Adult Copper Dragon

Monsters Monster Manual

Concentration or Temporary Hit Points required to maintain the spell)1/Day Each: Greater Restoration, Major ImageLegendary Action Uses: 3 (4 in Lair). Immediately after another creature’s turn, the dragon

rolls 1d6;{"diceNotation":"1d6", "rollType":"roll", "rollAction":"Giggling Magic"} whenever it makes an ability check or attack roll and subtracts the number rolled from the D20 Test. Failure or

Vampire

Monsters Monster Manual

, the vampire uses Shape-Shift to become mist (no action required). If it can’t use Shape-Shift, it is destroyed. While it has 0 Hit Points in mist form, it can’t return to its vampire form

regains 1 Hit Point after spending 1 hour there. Spider Climb. The vampire can climb difficult surfaces, including along ceilings, without needing to make an ability check. Vampire Weakness. The

Giant Insect

Spells Player’s Handbook

shares your Initiative count, but it takes its turn immediately after yours. It obeys your verbal commands (no action required by you). If you don’t issue any, it takes the Dodge action and uses

make an ability check. Actions Multiattack. The insect makes a number of attacks equal to half this spell’s level (round down). Poison Jab. Melee Attack Roll: Bonus equals your spell attack

Harper Pin

Magic Items Forgotten Realms: Adventures in Faerûn

Study action while reading your thoughts makes a DC 13 Intelligence (Investigation) check. On a successful check, it becomes aware that the detected thoughts are preprogrammed. Golden Harper Pin

. While wearing this pin, you can cast the Nondetection spell on yourself. The duration of this spell is permanent until you disable the effect (no action required), you remove the pin, or you are no longer attuned to the pin.

Mechanical Wonder

Magic Items Forgotten Realms: Adventures in Faerûn

your allies. In combat, the wonder shares your Initiative count, but it takes its turn immediately after yours. It obeys your verbal commands (no action required by you). If you don't issue any, it

required by you). If you don't issue any, it takes the Dodge action and uses its movement to avoid danger. The flying wonder is destroyed if it drops to 0 Hit Points. Gyrocopter Wonder (Rare). This wagon

Mechanical Wonder

Magic Items Forgotten Realms: Heroes of Faerûn

and your allies. In combat, the wonder shares your Initiative count, but it takes its turn immediately after yours. It obeys your verbal commands (no action required by you). If you don’t issue

, but it takes its turn immediately after yours. It obeys your verbal commands (no action required by you). If you don’t issue any, it takes the Dodge action and uses its movement to avoid danger

Chronolometer

Magic Items Acquisitions Incorporated

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

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

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

Crog's Guide to Disarming Magic Traps

Equipment

the Dexterity check is equal to 5 + the DC required to dispel or suppress the trap with dispel magic (minimum DC 18). On a failed check, the trap triggers.

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

Bag of Bounty

Magic Items Wayfinder's Guide to Eberron

’re proficient with cook’s utensils, add your bonus to this check. A failed check results in a sour and squalid meal. Food Quality Difficulty Poor No roll required

the bag. You shape this meal with your thoughts. You can create the standard bland fare without requiring any sort of check, but you can attempt to create finer food by making a Charisma check; if you

Far Gear

Magic Items Acquisitions Incorporated

While attuned to this device, you have a +1 bonus to Charisma saving throws, and you have advantage on Charisma (Intimidation) checks. Aberrant Ally. You can conjure an aberrant creature from the

chaos of the multiverse to serve you. This functions as the conjure celestial spell (no concentration required), except the creature you summon is an aberration of challenge rating 4 or lower. Once you

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

Alkilith Legacy

Monsters Mordenkainen’s Tome of Foes

a moment and has disadvantage on its next attack roll, saving throw, or ability check. If the saving throw against Foment Madness fails by 5 or more, the creature is instead subjected to the

confusion spell for 1 minute (no concentration required by the alkilith). While under the effect of that confusion, the creature is immune to Foment Madness. Magic Resistance. The alkilith has advantage on

Wolf-in-Sheep's-Clothing

Monsters Quests from the Infinite Staircase

observed the wolf-in-sheep’s-clothing move or act (except for the lure), that creature must succeed on a DC 18 Intelligence (Investigation) check to discern that the wolf-in-sheep’s-clothing is

;s-clothing’s turns, the wolf-in-sheep’s-clothing can pull the target up to 10 feet toward itself (no action required). The wolf-in-sheep’s-clothing has four root tentacles, each of

Obviator's Lenses

Magic Items Acquisitions Incorporated

Also at rank 2, you gain the use of an uncommon magic item taking the form of a pair of spectacles, a spyglass, a monocle, or any other device with one or two lenses. When you look through the

power of the lenses to gain accuracy in combat, gaining advantage on a weapon attack roll (no action required). If that attack hits, roll one additional weapon damage die. This property of the lenses can’t be used again until the next dawn.

Luck Blade Legacy

Magic Items Basic Rules (2014)

can call on its luck (no action required) to reroll one attack roll, ability check, or saving throw you dislike. You must use the second roll. This property can't be used again until the next dawn

Infernal Calling

Spells Xanathar's Guide to Everything

verbal command to the devil (no action required by you). It obeys the command if the likely outcome is in accordance with its desires, especially if the result would draw you toward evil. Otherwise

, you must make a Charisma (Deception, Intimidation, or Persuasion) check contested by its Wisdom (Insight) check. You make the check with advantage if you say the devil’s true name. If your check

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.

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

Dimensional Loop

Magic Items Acquisitions Incorporated

While attuned to this device, you have a +1 bonus to Strength saving throws, and you have darkvision out to a range of 60 feet. If you already have darkvision, its range increases by 30 feet

required). You treat that space as if it were within 5 feet of you until the end of your turn. This allows you to move immediately to that space without provoking opportunity attacks, or to interact with

Alkilith

Monsters Mordenkainen Presents: Monsters of the Multiverse

combat, it has advantage on its initiative roll. Moreover, if a creature hasn’t observed the alkilith move or act, that creature must succeed on a DC 18 Intelligence (Investigation) check to discern

saving throw, or it hears a faint buzzing in its head for a moment and has disadvantage on its next attack roll, saving throw, or ability check. If the saving throw against Foment Confusion fails by 5

Mighty Servant of Leuk-o

Magic Items Tasha’s Cauldron of Everything

conjecture than fact, often referring to otherworldly beings, the mysterious Barrier Peaks in Oerth, and the supposedly related device known as the Machine of Lum the Mad. The best details on the device

’s origins and operation can be found in the Mind of Metal, a tome of artificer’s secrets that connects the device to the traditions of the lost Olman people, and which was written by Lum the

Podling

Monsters Van Richten’s Guide to Ravenloft

occasional lapses. An observer familiar with the digested creature can recognize the discrepancies with a successful DC 20 Wisdom (Insight) check, or automatically if the podling does something in direct

dismisses it (no action required). Unusual Nature. The podling doesn’t require sleep.Slam. Melee Weapon Attack: +4;{"diceNotation":"1d20+4","rollType":"to hit","rollAction":"Slam"} to hit, reach 5

Dabus

Monsters Planescape: Adventures in the Multiverse

pictures that float in the air in front of itself and disappear a few seconds later. A creature that can see such a message can decipher it with a successful DC 10 Intelligence (Investigation) check

(no action required).Multiattack. The dabus makes two Flying Brick attacks. Flying Brick. Ranged Spell Attack: +5;{"diceNotation":"1d20+5", "rollType":"spell", "rollAction":"Flying Brick"} to hit

Leprechaun

Monsters Quests from the Infinite Staircase

leprechaun can revoke this gift from a creature at any time (no action required). A creature can benefit from only one leprechaun’s Gift of Luck at a time. Spellcasting. The leprechaun casts one of

, Phantasmal Force 1/day each: Fabricate (as an action), MisleadAstonishing Luck. When the leprechaun fails an ability check, an attack roll, or a saving throw, it can roll a new d20 and choose which

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

Tetherhook

Equipment

’s reach. Make a Strength (Athletics) check contested by the target’s Strength (Athletics) or Dexterity (Acrobatics) check (the target chooses the ability to use). If you succeed, the

target is hooked and can’t move further away from you. A hooked creature is no longer hooked if you release the tether with both hands, but only one hand is required to keep a creature hooked. A

Elder Brain Legacy

Monsters Volo's Guide to Monsters

mind once it is no longer incapacitated, and the elder brain can terminate the link at any time (no action required). The target can use an action on its turn to attempt to break the psychic link

that loom large in its mind (including things the target worries about, loves, or hates). The elder brain can also make a Charisma (Deception) check with advantage to deceive the target’s mind

Githzerai Anarch Legacy

Monsters Mordenkainen’s Tome of Foes

composition. If the anarch moves more than 120 feet from the object, its concentration breaks. The anarch can magically move an object it can see within 150 feet of it by making a Wisdom check with

Limbo and brought to the Material Plane for as long as the anarch remains within 1 mile of it (no action required). If the anarch dies, these effects end after 1d6;{"diceNotation":"1d6","rollType

Aboleth Legacy

Monsters Basic Rules (2014)

aboleth regains spent legendary actions at the start of its turn. Detect. The aboleth makes a Wisdom (Perception) check. Tail Swipe. The aboleth makes one tail attack. Psychic Drain (Costs 2

. On initiative count 20 (losing initiative ties), the aboleth takes a lair action to cause one of the following effects: The aboleth casts phantasmal force (no components required) on any number

Brain Breaker

Monsters Phandelver and Below: The Shattered Obelisk

can terminate the link at any time (no action required). The target can use an action on its turn to attempt to break the link, doing so with a successful DC 17 Charisma check. If the target breaks

Infected Elder Brain

Monsters Phandelver and Below: The Shattered Obelisk

no longer has the incapacitated condition, and the elder brain can terminate the link at any time (no action required). The target can use an action on its turn to attempt to break the link, doing so

with a successful DC 17 Charisma check. If the target breaks the link this way, the target takes 10 (3d6);{"diceNotation":"3d6", "rollType":"damage", "rollAction":"Psychic Link", "rollDamageType

Living Portent

Monsters The Book of Many Things

", "rollAction":"Prophetic Blessing"}, and it gains a prophecy die, a d8. Once during each of the creature’s turns, when it fails an ability check or saving throw or misses an attack roll, it can

roll the prophecy die and add the number rolled to the total, potentially changing the outcome. The blessing ends after 1 hour or when the living portent ends the blessing (no action required) or uses

Coiling Grasp Tattoo

Magic Items Tasha’s Cauldron of Everything

escape the grapple by succeeding on a DC 14 Strength (Athletics) or Dexterity (Acrobatics) check. The grapple also ends if you halt it (no action required), if the creature is ever more than 15 feet away from you, or if you use this tattoo on a different creature.

D&D Beyond

Search Results