before being diameter cube round

Ring of Shooting Stars

Magic Items Dungeon Master’s Guide

can expend 1 charge to cast Faerie Fire from the ring. Lightning Spheres. You can expend 2 charges as a Magic action to create up to four 3-foot-diameter spheres of lightning. Each sphere appears in

yourself. Each creature in a 15-foot Cube originating from that point is showered in sparks and makes a DC 15 Dexterity saving throw, taking 5d4 Radiant damage on a failed save or half as much damage on a successful one.

Web

Spells Player’s Handbook

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.

You conjure a mass of sticky webbing at a point within range. The webs fill a 20-foot Cube there for the duration. The webs are Difficult Terrain, and the area within them is Lightly Obscured. If

Druidcraft

Spells Player’s Handbook

location for the next 24 hours. The effect might manifest as a golden orb for clear skies, a cloud for rain, falling snowflakes for snow, and so on. This effect persists for 1 round. Bloom. You

an animal, or the faint odor of skunk. The effect must fit in a 5-foot Cube. Fire Play. You light or snuff out a candle, a torch, or a campfire.

Forcecage

Spells Player’s Handbook

An immobile, Invisible, Cube-shaped prison composed of magical force springs into existence around an area you choose within range. The prison can be a cage or a solid box, as you choose. A prison

in the shape of a cage can be up to 20 feet on a side and is made from 1/2-inch diameter bars spaced 1/2 inch apart. A prison in the shape of a box can be up to 10 feet on a side, creating a solid

Hat of Many Spells

Magic Items Dungeon Master’s Guide

just happened. 56–60 A harmless swarm of butterflies fills a 10-foot Cube within 30 feet of yourself. The swarm disperses after 1 minute. 61–65 You pull a nonmagical object

, 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

Summon Fey

Spells Player’s Handbook

number of Fey Blade attacks equal to half this spell’s level (round down). Fey Blade. Melee Attack Roll: Bonus equals your spell attack modifier, reach 5 ft. Hit: 2d6 + 3 + the spell’s level

10 feet of itself. Failure: The target is Charmed by you and the spirit for 1 minute or until the target takes any damage. Tricksy. The spirit fills a 10-foot Cube within 5 feet of it with magical Darkness, which lasts until the end of its next turn.

Control Water

Spells Player’s Handbook

Until the spell ends, you control any water inside an area you choose that is a Cube up to 100 feet on a side, using one of the following effects. As a Magic action on your later turns, you can

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

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

A Horizon puzzle cube is an 8-inch magical cube made of gold, iron, crystal, and copper, and it is worth 5,000 gp to a sage or collector. A functioning puzzle cube can be solved with 30 minutes of

Death Tyrant Legacy

Monsters Monster Manual (2014)

the target is a Huge or larger object or creation of magical force, this ray disintegrates a 10-foot cube of it. Death Ray. The targeted creature must succeed on a DC 17 Dexterity saving throw or

cube within 120 feet of the tyrant is filled with spectral eyes and tentacles. To creatures other than the death tyrant, that area is lightly obscured and difficult terrain until initiative count 20 on

Druidcraft Legacy

Spells Basic Rules (2014)

the next 24 hours. The effect might manifest as a golden orb for clear skies, a cloud for rain, falling snowflakes for snow, and so on. This effect persists for 1 round. You instantly make a flower

effect must fit in a 5-foot cube. You instantly light or snuff out a candle, a torch, or a small campfire.

Web Legacy

Spells Basic Rules (2014)

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.

You conjure a mass of thick, sticky webbing at a point of your choice within range. The webs fill a 20-foot cube from that point for the duration. The webs are difficult terrain and lightly obscure

Ancient Green Dragon Legacy

Monsters Basic Rules (2014)

. Furthermore, a creature in the wall’s space must make a DC 15 Dexterity saving throw once each round it’s in contact with the wall, taking 18 (4d8);{"diceNotation":"4d8","rollType":"damage

the next round. Regional Effects The region containing a legendary green dragon’s lair is warped by the dragon’s magic, which creates one or more of the following effects: Thickets

Ki-rin Legacy

Monsters Volo's Guide to Monsters

, pillows, rope, blankets, and clothing — to fill a cube 20 feet on a side. The second version permanently creates enough objects made of wood, or similarly hard plant-based material, to fill a cube

10 feet on a side. The third version creates enough objects made of stone or metal to fill a cube 2 feet on a side, but any materials created in this way last for only 1 hour. Regional Effects The ki

Brigganock

Monsters The Wild Beyond the Witchlight

feet. If the brigganock dies, its soul light fades away. Tunneler. Using a pickaxe or similar tool, a brigganock can burrow through solid rock at a speed of 5 feet, leaving a 6-inch-diameter tunnel

brigganock, or any object being worn or carried by another creature, and the activity must take place within a 10-foot cube. For example, the brigganock could use this action to rapidly carve a

Adult Green Dragon Legacy

Monsters Basic Rules (2014)

, a creature in the wall’s space must make a DC 15 Dexterity saving throw once each round it’s in contact with the wall, taking 18 (4d8);{"diceNotation":"4d8","rollType":"damage

round. Regional Effects The region containing a legendary green dragon’s lair is warped by the dragon’s magic, which creates one or more of the following effects: Thickets form

Forcecage Legacy

Spells Basic Rules (2014)

An immobile, invisible, cube-shaped prison composed of magical force springs into existence around an area you choose within range. The prison can be a cage or a solid box, as you choose. A prison

in the shape of a cage can be up to 20 feet on a side and is made from 1/2-inch diameter bars spaced 1/2 inch apart. A prison in the shape of a box can be up to 10 feet on a side, creating a solid

Ancient Time Dragon

Monsters Planescape: Adventures in the Multiverse

the effect on itself after it succeeds on three of these saves. Time Gate (1/Day). The dragon conjures a 20-foot-diameter, circular portal in the space between its horns or in an unoccupied space it

by the dragon from opening in the rulers’ presence or anywhere within their domains.The dragon can take up to three reactions per round but only one per turn. Reactive Rend. After using

Ring of Shooting Stars Legacy

Magic Items Basic Rules (2014)

charges as an action to create one to four 3-foot-diameter spheres of lightning. The more spheres you create, the less powerful each sphere is individually. Each sphere appears in an unoccupied space

ring at a point you can see within 60 feet of you. Each creature within a 15-foot cube originating from that point is showered in sparks and must make a DC 15 Dexterity saving throw, taking 5d4 fire damage on a failed save, or half as much damage on a successful one.

Beholder Legacy

Monsters Monster Manual (2014)

object or creation of magical force, this ray disintegrates a 10-foot cube of it. Death Ray. The targeted creature must succeed on a DC 16 Dexterity saving throw or take 55 (10d10);{"diceNotation

beholder becomes slimy; that area is difficult terrain until initiative count 20 on the next round. Walls within 120 feet of the beholder sprout grasping appendages until initiative count 20 on the round

Phantasmal Force Legacy

Spells Player’s Handbook (2014)

, creature, or other visible phenomenon of your choice that is no larger than a 10-foot cube and that is perceivable only to the target for the duration. This spell has no effect on undead or constructs

. Similarly, a phantasm created to appear as fire, a pool of acid, or lava can burn the target. Each round on your turn, the phantasm can deal 1d6 psychic damage to the target if it is in the phantasm

Ki-rin

Monsters Mordenkainen Presents: Monsters of the Multiverse

made of soft, plant-based material—including manufactured objects like pillows, rope, blankets, and clothing—that can collectively fill no more than a 20-foot cube. The objects materialize

can collectively fill no more than a 2-foot cube. The objects materialize 1 minute later in unoccupied spaces of the ki-rin’s choice on the floor of the lair, and the objects vanish after 1 hour

Juiblex

Monsters Mordenkainen Presents: Monsters of the Multiverse

after 1 round. Any creature that starts its turn in the burning slime takes 22 (4d10);{"diceNotation":"4d10","rollType":"damage","rollAction":"Slippery Slime","rollDamageType":"fire"} fire damage. Sticky

check. The slime lasts for 1 hour or until it is burned away with fire. If the slime is set on fire, it burns away after 1 round. Any creature that starts its turn in the burning slime takes 22 (4d10

Claugiyliamatar (possessed)

Monsters Divine Contention

foot a creature travels through the wall, it must spend 4 feet of movement. Furthermore, a creature in the wall’s space must make a DC 15 Dexterity saving throw once each round it’s in

around one creature the dragon can see within 120 feet of it. The creature must succeed on a DC 15 Wisdom saving throw or be charmed by the dragon until initiative count 20 on the next round

Claugiyliamatar

Monsters Storm King's Thunder

wall, it must spend 4 feet of movement. Furthermore, a creature in the wall’s space must make a DC 15 Dexterity saving throw once each round it’s in contact with the wall, taking 18 (4d8

charmed by the dragon until initiative count 20 on the next round. Regional Effects The region containing a legendary green dragon’s lair is warped by the dragon’s magic, which creates one

Control Water Legacy

Spells Basic Rules (2014)

Until the spell ends, you control any freestanding water inside an area you choose that is a cube up to 100 feet on a side. You can choose from any of the following effects when you cast this spell

spell ends or you choose a different effect. The water then slowly fills in the trench over the course of the next round until the normal water level is restored. Redirect Flow. You cause flowing water

Imix

Monsters Princes of the Apocalypse

initiative count 20 of the next round. Creatures and objects within or beyond the smoke are heavily obscured. A creature that enters the cloud of embers for the first time on a turn or starts its turn

are caught in the path of a wildfire moving 50 feet per round. Each character must succeed on a DC 21 Constitution saving throw or take 10 (3d6);{"diceNotation":"3d6","rollType":"damage","rollAction

Arasta

Monsters Mythic Odysseys of Theros

":"recharge","rollAction":"Web of Hair"}. Arasta unleashes her hair in the form of webbing that fills a 30-foot cube next to her. The web is difficult terrain, its area is lightly obscured, and it lasts for 1

5-foot cube of the web is destroyed if it takes at least 20 fire damage from a spell or other magical source on a single turn.Arasta can take 3 legendary actions, choosing from the options below

Devastation Orb

Magic Items Princes of the Apocalypse

diameter, weighs 10 pounds, and has a solid outer shell. The orb detonates 1d100 hours after its creation, releasing the elemental energy it contains. The orb gives no outward sign of how much time

effect. The wildfire covers a 10-foot-square area initially but expands to fill another 10-foot square each round until the fire is extinguished or burns itself out. A creature that comes within 10

Sapphire Dragon Wyrmling

Monsters Fizban's Treasury of Dragons

half its burrowing speed and can leave a 5-foot-diameter tunnel in its wake.Bite. Melee Weapon Attack: +5;{"diceNotation":"1d20+5", "rollType":"to hit", "rollAction":"Bite"} to hit, reach 5 ft

"} Connected Creatures 1 After being robbed by gnomes who had pledged to protect the hoard, a sapphire dragon wyrmling installs new guardians that have no interest in material riches: gelatinous cube

Ancient Amethyst Dragon

Monsters Fizban's Treasury of Dragons

split open to show their contents and clusters of crystal points more than a foot in diameter that extend six to ten feet from the interior stone surfaces of the lair. These crystals resonate with the

count 20 on the next round. A creature charmed in this way obeys to the best of its ability any command the dragon issues that isn’t directly harmful to the creature. Imprisoning Force. The

Adult Amethyst Dragon

Monsters Fizban's Treasury of Dragons

than a foot in diameter that extend six to ten feet from the interior stone surfaces of the lair. These crystals resonate with the dragon’s presence, and glow with a soft inner light. The older

the dragon’s telepathy. The creature must succeed on a DC 15 Wisdom saving throw or be charmed by the dragon until initiative count 20 on the next round. A creature charmed in this way obeys to

Horizon's Edge Magic

Compendium - Sources->Dungeons & Dragons->Bigby Presents: Glory of the Giants

30-foot-diameter portal appears before the creature who solved the cube, leading to the northeastern platform of Horizon’s Edge. The portal is two-way and remains open for 10 minutes or until a

scattered across the Material and Inner Planes, and these cubes are among the few ways to enter Horizon’s Edge. A Horizon puzzle cube is an 8-inch magical cube made of gold, iron, crystal, and copper

Air Envelopes

Compendium - Sources->Dungeons & Dragons->Spelljammer: Adventures in Space->Astral Adventurer’s Guide

Envelope and Gravity Plane Air Envelopes of Creatures The envelope of breathable air that forms around a creature takes the shape of a cube centered on that creature. The creature’s size determines the

cube’s dimensions, as shown in the Air Envelopes of Creatures table. Air Envelopes of Creatures Creature’s Size Air Envelope Tiny 2½-foot cube Small or Medium 5-foot cube Large 10-foot cube Huge 15

Cave of Echoes Features

Compendium - Sources->Dungeons & Dragons->Quests from the Infinite Staircase

source or other means of seeing in the dark. Tunnels. The tunnels connecting caverns are roughly round and 10 feet in diameter.

Low Gravity Zone

Compendium - Sources->Dungeons & Dragons->Netheril’s Fall: Tales of Terror, Treasure, and Time Travel

typically no more than 300 feet in diameter. In a low gravity zone, creatures quadruple the distance they can leap with a High Jump or a Long Jump, and the damage creatures take from falling is halved (round down).

D&D Beyond

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