black building device cause radius

Synaptic Static

Spells Player’s Handbook

You cause psychic energy to erupt at a point within range. Each creature in a 20-foot-radius Sphere centered on that point makes an Intelligence saving throw, taking 8d6 Psychic damage on a failed

Flame Tongue

Magic Items Dungeon Master’s Guide

While holding this magic weapon, you can take a Bonus Action and use a command word to cause flames to engulf the damage-dealing part of the weapon. These flames shed Bright Light in a 40-foot radius

Gem of Brightness

Magic Items Dungeon Master’s Guide

This prism has 50 charges. While you are holding it, you can take a Magic action and use one of three command words to cause one of the following effects: First Command Word. The gem sheds Bright

Light in a 30-foot radius and Dim Light for an additional 30 feet. This effect doesn’t expend a charge. It lasts until you take a Bonus Action to repeat the command word or until you use another

Robe of Scintillating Colors

Magic Items Dungeon Master’s Guide

This robe has 3 charges, and it regains 1d3 expended charges daily at dawn. While you wear it, you can take a Magic action and expend 1 charge to cause the garment to display a shifting pattern of

dazzling hues until the end of your next turn. During this time, the robe sheds Bright Light in a 30-foot radius and Dim Light for an additional 30 feet, and creatures that can see you have Disadvantage

Bead of Force

Magic Items Dungeon Master’s Guide

This small black sphere measures 3/4 of an inch in diameter and weighs an ounce. Typically, 1d4 + 4 Beads of Force are found together. You can take a Magic action to throw the bead up to 60 feet

. The bead explodes in a 10-foot-radius Sphere on impact and is destroyed. Each creature in the Sphere must succeed on a DC 15 Dexterity saving throw or take 5d4 Force damage. A sphere of transparent

Sun Blade

Magic Items Dungeon Master’s Guide

This item appears to be a sword hilt. Blade of Radiance. While grasping the hilt, you can take a Bonus Action to cause a blade of pure radiance to spring into existence or make the blade disappear

. Sunlight. The sword’s luminous blade emits Bright Light in a 15-foot radius and Dim Light for an additional 15 feet. The light is sunlight. While the blade persists, you can take a Magic action

Thunderous Greatclub

Magic Items Dungeon Master’s Guide

against the ground to create an intense seismic disturbance in a 50-foot-radius circle centered on the point of impact. Structures in contact with the ground in that area take 50 Bludgeoning damage

saving throw, or its Concentration is broken. In addition, you can cause a 30-foot-deep, 10-foot-wide fissure to open up on the ground anywhere in the area. Any creature on a spot where the fissure

Earthquake

Spells Player’s Handbook

Choose a point on the ground that you can see within range. For the duration, an intense tremor rips through the ground in a 100-foot-radius circle centered on that point. The ground there is

the Prone condition, and its Concentration is broken. You can also cause the effects below. Fissures. A total of 1d6 fissures open in the spell’s area at the end of the turn you cast it. You

Sphere of Annihilation

Magic Items Dungeon Master’s Guide

This 2-foot-diameter black sphere is a hole in the multiverse, hovering in space and stabilized by a magical field surrounding it. The sphere obliterates all matter it passes through and all matter

Bonus Action to cause it to move in one direction of your choice, up to a number of feet equal to 5 times your Intelligence modifier (minimum 5 feet). Any creature whose space the sphere enters must

Magic Circle

Spells Player’s Handbook

You create a 10-foot-radius, 20-foot-tall Cylinder of magical energy centered on a point on the ground that you can see within range. Glowing runes appear wherever the Cylinder intersects with the

from the creature. Each time you cast this spell, you can cause its magic to operate in the reverse direction, preventing a creature of the specified type from leaving the Cylinder and protecting

Helm of Brilliance

Magic Items Dungeon Master’s Guide

to cause one weapon you are holding to burst into flames. The flames emit Bright Light in a 10-foot radius and Dim Light for an additional 10 feet. The flames are harmless to you and the weapon. When

Wand of Wonder

Magic Items Dungeon Master’s Guide

1d6 Psychic damage. 36–40 Heavy rain falls for 1 minute in a 120-foot-high, 60-foot-radius Cylinder centered on the chosen point of origin. During that time, the area of effect is Lightly

Obscured. 41–45 A cloud of 600 oversized butterflies fills a 60-foot-high, 30-foot-radius Cylinder centered on the chosen point of origin. The butterflies remain for 10 minutes, during which

Vine Blight Tangler

Monsters Stranger Things: Welcome to the Hellfire Club

);{"diceNotation":"1d6", "rollType":"recharge", "rollAction":"Entangling Vines"}. Grasping vines momentarily appear on each enemy in a 10-foot-radius Sphere centered on a point of the blight’s

lash out at non-Plant creatures. Vine blights resemble humans wrapped in vines common to the areas in which they grow, from hairy ivy vines to flowering kudzu. They can cause plants to burst from the ground around themselves and entangle nearby foes.

Dazzling Weapon

Magic Items Eberron: Forge of the Artificer

This magic weapon grants a +1 bonus to attack and damage rolls made with it. While holding it, you can take a Bonus Action to cause it to shed Bright Light in a 30-foot radius and Dim Light for an

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

Circle spell requires a minimum of five secondary casters. In addition to the spell’s usual components, you must provide a special component (a string of three black pearls from Pandemonium

Elise

Monsters Van Richten’s Guide to Ravenloft

, though they can still die in other ways. The glowing device sheds light in a 10-foot radius and dim light for an additional 10 feet. While inside a creature, the device causes the creature to shed dim

achievement, Elise is a confused, frustrated soul who never wished for her current circumstances. Elise’s heart has been replaced with the Unbreakable Heart. If this device is removed, Elise dies

Ythryn Mythallar

Magic Items Icewind Dale: Rime of the Frostmaiden

of existence as the Ythryn mythallar, you can use an action to cause it to fly in any direction you choose at a speed of 30 feet. All matter within 500 feet of the device moves with it. The Ythryn

A mythallar looks like an enormous crystal ball held in an ornate cradle. The globe sheds bright light in a 300-foot radius and dim light for an additional 300 feet. The globe draws magic from the

Robot Controller

Equipment

the device gives the device 3 charges. As an action while holding this device, you can expend 1 of its charges to cause one of the following effects: Control. One Construct of your choice within 60

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

Black Rose Bearer

Monsters Vecna: Eve of Ruin

as a guardian. Its name derives from the preserved black rose the bearer carries inside a delicate bell jar. The slightest jostle can cause the bearer to lose its grasp on the bell jar, destroying

a pristine black rose. Undead Fortitude. If damage reduces the bearer to 0 hit points, it must make a Constitution saving throw with a DC of 5 plus the damage taken, unless the damage is radiant or

Spiderdragon

Monsters Vecna: Eve of Ruin

powerful as their black dragon progenitors, though, and they often drain the enclaves’ resources with their selfish demands. Uninterested in building lairs, spiderdragons weave powerful webs and

as much damage on a successful one.The terrors known as spiderdragons were first found in the deepest corners of the Underdark and trace their origins to black dragon wyrmlings who ate a steady diet

Dagger of Venom Legacy

Magic Items Basic Rules (2014)

You gain a +1 bonus to attack and damage rolls made with this magic weapon. You can use an action to cause thick, black poison to coat the blade. The poison remains for 1 minute or until an attack

Ancient Black Dragon Legacy

Monsters Basic Rules (2014)

on the frayed edges of civilization. A black dragon’s lair is a dismal cave, grotto, or ruin that is at least partially flooded, providing pools where the dragon rests, and where its victims can

the lair, which is filled with the stench of death and decay. Lair Actions On initiative count 20 (losing initiative ties), the dragon takes a lair action to cause one of the following effects; the

Adult Black Dragon Legacy

Monsters Basic Rules (2014)

swamps on the frayed edges of civilization. A black dragon’s lair is a dismal cave, grotto, or ruin that is at least partially flooded, providing pools where the dragon rests, and where its victims

infest the lair, which is filled with the stench of death and decay. Lair Actions On initiative count 20 (losing initiative ties), the dragon takes a lair action to cause one of the following effects

Gunpowder, Keg Legacy

Equipment

fire to a container full of gunpowder can cause it to explode, dealing fire damage to creatures within 10 feet of it (3d6 for a powder horn, 7d6 for a keg). A successful DC 12 Dexterity saving throw

halves the damage. Setting fire to an ounce of gunpowder causes it to flare for 1 round, shedding bright light in a 30-foot radius and dim light for an additional 30 feet.

Gunpowder, Powder Horn Legacy

Equipment

fire to a container full of gunpowder can cause it to explode, dealing fire damage to creatures within 10 feet of it (3d6 for a powder horn, 7d6 for a keg). A successful DC 12 Dexterity saving throw

halves the damage. Setting fire to an ounce of gunpowder causes it to flare for 1 round, shedding bright light in a 30-foot radius and dim light for an additional 30 feet.

Ogrémoch

Monsters Princes of the Apocalypse

count 20 (losing initiative ties), Ogrémoch uses his lair action to cause one of the following effects: A 10-foot-radius area of rocky or earthy ground within 60 feet of Ogrémoch turns

creature within 30 feet of Ogrémoch becomes outlined in orange light, shedding dim light in a 10-foot radius. Any attack roll against an affected creature has advantage if the attacker can see it

Robe of Scintillating Colors Legacy

Magic Items Basic Rules (2014)

This robe has 3 charges, and it regains 1d3 expended charges daily at dawn. While you wear it, you can use an action and expend 1 charge to cause the garment to display a shifting pattern of dazzling

hues until the end of your next turn. During this time, the robe sheds bright light in a 30-foot radius and dim light for an additional 30 feet. Creatures that can see you have disadvantage on attack

Rezmir

Monsters Tyranny of Dragons

Special Equipment. Rezmir has the Black Dragon Mask, Hazirawn, and an insignia of claws (see appendix C for all items). Amphibious. Rezmir can breathe air and water. Cruel Advantage. Once per turn

. Draconic Majesty. While wearing no armor and wearing the Black Dragon Mask, Rezmir adds her Charisma bonus to her AC (included). Immolation. When Rezmir is reduced to 0 hit points, her body

Scroll of the Comet

Magic Items Icewind Dale: Rime of the Frostmaiden

By using an action to read the scroll, you cause a comet to fall from the sky and crash to the ground at a point you can see up to 1 mile away from you. You must be outdoors when you use the scroll

, or nothing happens and the scroll is wasted. The comet creates a 50-foot-deep, 500-foot-radius crater on impact. Any creature in that radius must make a DC 20 Dexterity saving throw, taking 30d10

Horn of Beckoning Death

Magic Items Legendary Magic Items

Resembling a small dragon’s horn, this arcane device glows with a hellish internal light when held. As an action while holding this horn, you can invoke a necromantic effect called the

Beckoning Death. The Beckoning Death arrives at the start of your next turn and manifests as a crimson cloud of smoke that fills a 30-foot-radius sphere centered on the horn. The sphere doesn’t move

Mighty Servant of Leuk-o

Magic Items Tasha’s Cauldron of Everything

gleaming black alloy of unknown origin, the servant is often described as a combination of a disproportioned dwarf and an oversized beetle. The servant contains enough space for 1 ton of cargo and a

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

Sun Blade Legacy

Magic Items Basic Rules (2014)

This item appears to be a longsword hilt. While grasping the hilt, you can use a bonus action to cause a blade of pure radiance to spring into existence, or make the blade disappear. While the blade

in a 15-foot radius and dim light for an additional 15 feet. The light is sunlight. While the blade persists, you can use an action to expand or reduce its radius of bright and dim light by 5 feet each, to a maximum of 30 feet each or a minimum of 10 feet each.

Pyrotechnics

spells Elemental Evil Player's Companion

turn. Smoke. Thick black smoke spreads out from the target in a 20-foot radius, moving around corners. The area of the smoke is heavily obscured. The smoke persists for 1 minute or until a strong wind disperses it.

Amrik Vanthampur

Monsters Baldur’s Gate: Descent into Avernus

","rollAction":"Dagger","rollDamageType":"piercing"} piercing damage. Smoke Bomb (1/Day). Amrik hurls a smoke bomb up to 20 feet away. The bomb explodes on impact, creating a cloud of black smoke that fills a 10

-foot-radius sphere. The area within the cloud is heavily obscured. A strong wind disperses the cloud, which otherwise remains until the end of Amrik’s next turn.Second son of Duke Thalamra

Crystal Blade

Magic Items Fizban's Treasury of Dragons

radiant damage the sword dealt. While you’re holding the sword, you can use a bonus action to cause it to shed bright light in a 30-foot radius and dim light for an additional 30 feet, to cause it to shed dim light in a 10-foot radius, or to douse the light.

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