been before device check round

Yochlol

Monsters Monster Manual

Advantage on saving throws against spells and other magical effects. Spider Climb. The yochlol can climb difficult surfaces, including along ceilings, without needing to make an ability check. Web

halves the attack’s damage to itself (round down), and it teleports to an unoccupied space it can see within 30 feet of itself. Constitution Saving Throw: DC 15, each creature within 5 feet of

Cloaker

Monsters Monster Manual

against other targets. In addition, the cloaker halves the damage it takes (round down), and the target takes the same amount of damage. The cloaker can detach itself by spending 5 feet of movement. The

target or a creature within 5 feet of it can take an action to try to detach the cloaker, doing so by succeeding on a DC 14 Strength (Athletics) check. Tail. Melee Attack Roll: +6;{"diceNotation

Tsunami

Spells Player’s Handbook

Strength saving throw or take 5d10 Bludgeoning damage. A creature can take this damage only once per round. At the end of the turn, the wall’s height is reduced by 50 feet, and the damage 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.

Web

Spells Player’s Handbook

Restrained condition while in the webs or until it breaks free. A creature Restrained by the webs can take an action to make a Strength (Athletics) check against your spell save DC. If it succeeds, it is

no longer Restrained. The webs are flammable. Any 5-foot Cube of webs exposed to fire burns away in 1 round, dealing 2d4 Fire damage to any creature that starts its turn in the fire.

Giant Insect

Spells Player’s Handbook

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

Control Water

Spells Player’s Handbook

separated water forms a wall to either side. The trench remains until the spell ends or you choose a different effect. The water then slowly fills in the trench over the course of the next round until

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

Narycrash

Equipment

This backpack-sized device holds a balloon-based parachute. If you fall while wearing this device, you can use your reaction to deploy the parachute. Once deployed, the parachute rapidly inflates

, and you descend 60 feet per round and take no damage from falling. When you are 10 feet away from the ground, roll a d20. If you roll a 5 or less, the parachute gives out, and you begin to fall normally.

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

Telekinesis Legacy

Spells Basic Rules (2014)

You gain the ability to move or manipulate creatures or objects by thought. When you cast the spell, and as your action each round for the duration, you can exert your will on one creature or object

that you can see within range, causing the appropriate effect below. You can affect the same target round after round, or choose a new one at any time. If you switch targets, the prior target is no

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

Concealed Blade

Equipment

(Perception) checks. You have Advantage on the first attack made in the first round of combat against any enemy who failed their check.

A Concealed Blade is a dagger built into a mechanism hidden within a bracer or gauntlet. When you roll Initiative, you can make a Dexterity (Deception) check opposed by others’ Wisdom

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

Slithering Tracker Legacy

Monsters Volo's Guide to Monsters

Ambusher. In the first round of a combat, the slithering tracker has advantage on attack rolls against any creature it surprised. Damage Transfer. While grappling a creature, the slithering tracker

, unless an observer succeeds on a DC 18 Intelligence (Investigation) check. Keen Tracker. The slithering tracker has advantage on Wisdom checks to track prey. Liquid Form. The slithering tracker can

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.

Tsunami Legacy

Spells Player’s Handbook (2014)

must succeed on a Strength saving throw or take 5d10 bludgeoning damage. A creature can take this damage only once per round. At the end of the turn, the wall’s height is reduced by 50 feet, and

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.

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

Ancient Gold Dragon Legacy

Monsters Basic Rules (2014)

action to make a Charisma check contested by the dragon’s. If the creature wins, it escapes the dream plane. Otherwise, the effect ends on initiative count 20 on the next round. When the effect

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. Wing Attack (Costs 2 Actions). The dragon

Pipes of the Sewers Legacy

Magic Items Basic Rules (2014)

another creature's control comes within 30 feet of you while you are playing the pipes, you can make a Charisma check contested by the swarm's Wisdom check. If you lose the contest, the swarm behaves as

long as you continue to play the pipes each round as an 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

Intelligent Black Pudding

Monsters Waterdeep: Dungeon of the Mad Mage

hits the pudding is destroyed after dealing damage. The pudding can eat through 2-inch-thick, nonmagical wood or metal in 1 round. Spider Climb. The pudding can climb difficult surfaces, including

upside down on ceilings, without needing to make an ability check. Innate Spellcasting. The pudding's spellcasting ability is Intelligence (spell save DC 12, +4;{"diceNotation":"1d20+4","rollType":"to hit

Reduced-threat Black Pudding

Monsters Tales from the Yawning Portal

hits the pudding is destroyed after dealing damage. The pudding can eat through 2-inch-thick, nonmagical wood or metal in 1 round. Spider Climb. The pudding can climb difficult surfaces, including

upside down on ceilings, without needing to make an ability check. Reduced Threat. This creature has -2 penalty on all ability checks and saving throws.Pseudopod. Melee Weapon Attack: +3;{"diceNotation

Ancient Green Dragon Legacy

Monsters Basic Rules (2014)

only at the 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

Strength saving throw or be restrained by the roots and vines. A creature can be freed if it or another creature takes an action to make a DC 15 Strength check and succeeds. The roots and vines wilt

Regenerating Black Pudding

Monsters Out of the Abyss

hits the pudding is destroyed after dealing damage. The pudding can eat through 2-inch-thick, nonmagical wood or metal in 1 round. Spider Climb. The pudding can climb difficult surfaces, including

upside down on ceilings, without needing to make an ability check. Regeneration. The pudding regains 10 hit points at the start of its turn. If the pudding takes fire damage, this trait doesn't function at

Adult Gold Dragon Legacy

Monsters Basic Rules (2014)

make a Charisma check contested by the dragon’s. If the creature wins, it escapes the dream plane. Otherwise, the effect ends on initiative count 20 on the next round. When the effect ends, the

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. Wing Attack (Costs 2 Actions). The dragon beats

Adult Green Dragon Legacy

Monsters Basic Rules (2014)

the 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

saving throw or be restrained by the roots and vines. A creature can be freed if it or another creature takes an action to make a DC 15 Strength check and succeeds. The roots and vines wilt away when

Phantasmal Force Legacy

Spells Player’s Handbook (2014)

. The phantasm includes sound, temperature, and other stimuli, also evident only to the creature. The target can use its action to examine the phantasm with an Intelligence (Investigation) check

against your spell save DC. If the check succeeds, the target realizes that the phantasm is an illusion, and the spell ends. While a target is affected by the spell, the target treats the phantasm as if it

Ancient Silver Dragon Legacy

Monsters Basic Rules (2014)

) check. Tail Attack. The dragon makes a tail attack. Wing Attack (Costs 2 Actions). The dragon beats its wings. Each creature within 15 feet of the dragon must succeed on a DC 25 Dexterity saving throw

fog cloud spell. The fog lasts until initiative count 20 on the next round. A blisteringly cold wind blows through the lair near the dragon. Each creature within 120 feet of the dragon must succeed on

Drow Arachnomancer Legacy

Monsters Mordenkainen’s Tome of Foes

. The drow can climb difficult surfaces, including upside down on ceilings, without needing to make an ability check. Sunlight Sensitivity. While in sunlight, the drow has disadvantage on attack rolls

attacks. The first of these attacks that hits each round deals an extra 26 (4d12);{"diceNotation":"4d12","rollType":"damage","rollAction":"Multiattack","rollDamageType":"poison"} poison damage to the

Web Legacy

Spells Basic Rules (2014)

. On a failed save, the creature is restrained as long as it remains in the webs or until it breaks free. A creature restrained by the webs can use its action to make a Strength check against your

spell save DC. If it succeeds, it is no longer restrained. The webs are flammable. Any 5-foot cube of webs exposed to fire burns away in 1 round, dealing 2d4 fire damage to any creature that starts its turn in the fire.

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

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

Adult Silver Dragon Legacy

Monsters Basic Rules (2014)

option can be used at a time and only at the 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

spell. The fog lasts until initiative count 20 on the next round. A blisteringly cold wind blows through the lair near the dragon. Each creature within 120 feet of the dragon must succeed on a DC 15

Sahuagin Wave Shaper

Monsters Ghosts of Saltmarsh

(Athletics) check to do so. The first time each turn that an object enters the vortex, the object takes 9 (2d8);{"diceNotation":"2d8","rollType":"damage","rollDamageType":"bludgeoning"} bludgeoning damage. This damage occurs each round it remains in the vortex.

vortex by succeeding on a DC 14 Strength (Athletics) check. When a creature enters the vortex for the first time on a turn or starts its turn there, it must make a DC 14 Strength saving throw. On a

Adult Copper Dragon Legacy

Monsters Basic Rules (2014)

at a time and only at the 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

15 Strength check, freeing itself or another creature within its reach and ending the restrained condition on a success. Moving 1 foot in the mud costs 2 feet of movement. On initiative count 20 on

Red Slaad (control gem variant) Legacy

Monsters Monster Manual (2014)

remove the gem from an incapacitated slaad. Each try requires 1 minute of uninterrupted work and a successful DC 20 Wisdom (Medicine) check. Each failed attempt deals 22 (4d10);{"diceNotation":"4d10

the host's chest in 1 round, killing the host in the process. If the disease is cured before the tadpole's emergence, the unborn slaad is disintegrated.As a slaad emerges from the Spawning Stone, the

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