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Returning 35 results for 'check diameter'.
Magic Items
Dungeon Master’s Guide
This rusty iron sphere measures 3 inches in diameter and weighs 1 pound. You can take a Magic action to throw the sphere at a Huge or smaller creature you can see within 60 feet of yourself. As the
creature that can touch the bands, including the one Restrained, can take an action to make a DC 20 Strength (Athletics) check to break the iron bands. On a successful check, the item is destroyed, and the
Magic Items
Dungeon Master’s Guide
This fine black cloth, soft as silk, is folded up to the dimensions of a handkerchief. It unfolds into a circular sheet 6 feet in diameter.
You can take a Magic action to unfold a Portable Hole and
next to nothing.
If the hole is folded up, a creature within the hole’s extradimensional space can take an action to make a DC 10 Strength (Athletics) check. On a successful check, the creature
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
within 60 feet of a sphere, you can take a Magic action to make a DC 25 Intelligence (Arcana) check. On a successful check, you control the sphere until the start of your next turn, and if it was under
Magic Items
Dungeon Master’s Guide
slot of the spell’s level. Then, to determine whether you cast the spell, make an Intelligence (Arcana) check (DC 10 plus the spell’s level). On a successful check, you cast the spell using
its normal casting time, and you can’t use this property again until you finish a Short or Long Rest. On a failed check, you fail to cast the spell and a random effect occurs instead
Spells
Player’s Handbook
feet in diameter. If you choose an object, it must remain in place; if it is moved more than 10 feet from where you cast this spell, the glyph is broken, and the 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 its trigger and choose which effect the
Spells
Player’s Handbook
) to conceal the glyph. The glyph can cover an area no larger than 10 feet in diameter. If the surface or object is moved more than 10 feet from where you cast this spell, the glyph is broken, and the
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
Iron Bands of Binding
Legacy
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Magic Items
Basic Rules (2014)
This rusty iron sphere measures 3 inches in diameter and weighs 1 pound. You can use an action to speak the command word and throw the sphere at a Huge or smaller creature you can see within 60 feet
more.
A creature, including the one restrained, can use an action to make a DC 20 Strength check to break the iron bands. On a success, the item is destroyed, and the restrained creature is freed. If
Iron Bands of Bilarro
Legacy
This doesn't reflect the latest rules and lore.
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Magic Items
Dungeon Master’s Guide (2014)
This rusty iron sphere measures 3 inches in diameter and weighs 1 pound. You can use an action to speak the command word and throw the sphere at a Huge or smaller creature you can see within 60 feet
more.
A creature, including the one restrained, can use an action to make a DC 20 Strength check to break the iron bands. On a success, the item is destroyed, and the restrained creature is freed. If
Portable Hole
Legacy
This doesn't reflect the latest rules and lore.
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Magic Items
Basic Rules (2014)
This fine black cloth, soft as silk, is folded up to the dimensions of a handkerchief. It unfolds into a circular sheet 6 feet in diameter.
You can use an action to unfold a portable hole and place
hole is folded up, a creature within the hole’s extradimensional space can use an action to make a DC 10 Strength check. On a successful check, the creature forces its way out and appears within 5
Sphere of Annihilation
Legacy
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Magic Items
Basic Rules (2014)
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
action to make a DC 25 Intelligence (Arcana) check. On a success, the sphere levitates in one direction of your choice, up to a number of feet equal to 5 × your Intelligence modifier (minimum 5
Spells
Elemental Evil Player's Companion
You cause up to six pillars of stone to burst from places on the ground that you can see within range. Each pillar is a cylinder that has a diameter of 5 feet and a height of up to 30 feet. The
ground where a pillar appears must be wide enough for its diameter, and you can target the ground under a creature if that creature is Medium or smaller. Each pillar has AC 5 and 30 hit points. When
Orb of Dragonkind
Legacy
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Magic Items
Basic Rules (2014)
globe about 10 inches in diameter. When used, it grows to about 20 inches in diameter, and mist swirls inside it.
While attuned to an orb, you can use an action to peer into the orb’s depths and
speak its command word. You must then make a DC 15 Charisma check. On a successful check, you control the orb for as long as you remain attuned to it. On a failed check, you become charmed by the orb
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
Monsters
Spelljammer: Adventures in Space
shell is affixed to the ship by a glue-like substance secreted by the leech. The shell grows until it’s about 1 foot in diameter. The leech inside is reddish-purple in color, with a body resembling
itself as a bonus action. As an action, a creature within reach of the leech can to try to scrape it off the hull, doing so with a successful DC 18 Strength check. On a failed check, the action is wasted
Monsters
Monstrous Compendium Vol. 1: Spelljammer Creatures
creature hasn’t observed the spider move or act, that creature must succeed on a DC 18 Intelligence (Investigation) check to discern that the spider is anything other than an asteroid
full-grown specimen has a body 30 feet in diameter and legs that are at least 30 feet long. When it wraps its legs tightly around its body and closes its eyes, the asteroid spider resembles nothing so
Monsters
Spelljammer: Adventures in Space
hasn’t observed the eye monger move or act, that creature must succeed on a DC 18 Intelligence (Investigation) check to discern that the eye monger is animate.
Unusual Nature. The eye monger doesn
eye and mouth are closed, an eye monger looks like nothing more than a 12-foot-diameter asteroid. When it senses vibrations in the space around it, the eye monger opens its eye and reveals its true
Magic Items
Acquisitions Incorporated
transfer any amount of your franchise funds back to your satchel with a successful DC 15 Dexterity (Sleight of Hand) check.
Secret Satchel
As a rank 3 hoardsperson, your living loot satchel gets an
Dexterity (Sleight of Hand) check. On a success, you draw forth an item of your choice on the Adventuring Gear table in chapter 5 of the Player’s Handbook. The item must be of a size that can fit
Glyph of Warding
Legacy
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Spells
Basic Rules (2014)
be closed (such as a book, a scroll, or a treasure chest) to conceal the glyph. The glyph can cover an area no larger than 10 feet in diameter. If the surface or object is moved more than 10 feet from
where you cast this spell, the glyph is broken, and the spell ends without being triggered.
The glyph is nearly invisible and requires a successful Intelligence (Investigation) check against your
Symbol
Legacy
This doesn't reflect the latest rules and lore.
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Spells
Basic Rules (2014)
, a scroll, or a treasure chest). If you choose a surface, the glyph can cover an area of the surface no larger than 10 feet in diameter. If you choose an object, that object must remain in its place
(Investigation) check against your spell save DC to find it.
You decide what triggers the glyph when you cast the spell. For glyphs inscribed on a surface, the most typical triggers include touching or
Monsters
Mordenkainen Presents: Monsters of the Multiverse
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
, this creature can move up to 20 feet through spaces no more than an inch in diameter. It must end this movement in a space that can accommodate its full size. Otherwise, it takes 5 force damage and
Monsters
Fizban's Treasury of Dragons
Tunneler. The dragon can burrow through solid rock at half its burrowing speed and can leave a 10-foot-diameter tunnel in its wake.Bite. Melee Weapon Attack: +4;{"diceNotation":"1d20+4", "rollType
makes an attack roll or an ability check, it must roll a d4;{"diceNotation":"1d4", "rollType":"roll", "rollAction":"Disorienting Breath"} and reduce the total by the number rolled. On a successful save
Monsters
Fizban's Treasury of Dragons
Spider Climb. The dragon can climb difficult surfaces, including upside down on ceilings, without needing to make an ability check.
Tunneler. The dragon can burrow through solid rock at half its
burrowing speed and can leave a 10-foot-diameter tunnel in its wake.Multiattack. The dragon makes one Bite attack and two Claw attacks.
Bite. Melee Weapon Attack: +9;{"diceNotation":"1d20+9", "rollType
Monsters
Fizban's Treasury of Dragons
Spider Climb. The dragon can climb difficult surfaces, including upside down on ceilings, without needing to make an ability check.
Tunneler. The dragon can burrow through solid rock at
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
Monsters
Fizban's Treasury of Dragons
Tunneler. The dragon can burrow through solid rock at half its burrowing speed and can leave a 10-foot-diameter tunnel in its wake.Multiattack. The dragon makes one Bite attack and two Claw attacks
", "rollAction":"Disorienting Breath", "rollDamageType":"psychic"} psychic damage, and until the end of its next turn, when the creature makes an attack roll or an ability check, it must roll a d6
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
surrounding a legendary amethyst dragon’s lair is altered by the dragon’s magic, creating one or more of the following effects:
Background Check. Once per day, the dragon can cast the legend
Compendium
- Sources->Dungeons & Dragons->Ghosts of Saltmarsh
size and strength, as shown on the Whirlpool Rank table. A whirlpool’s depth equals half its diameter. Whirlpool Rank Rank Diameter Velocity DC 1 22 (4d10) ft. 5 ft. 5 2 55 (10d10) ft. 15 ft. 10 3
110 (20d10) ft. 25 ft. 15 4 165 (30d10) ft. 35 ft. 20 Creatures in Whirlpools When a creature moves into a whirlpool or starts its turn there, it must make a Strength (Athletics) check with a DC
Compendium
- Sources->Dungeons & Dragons->Curse of Strahd
Q43. Hole in Roof This 20-foot-diameter hole in the mansion’s roof is directly above area Q33, the floor of which is 20 feet below. The rubble on the roof surrounding the hole is difficult terrain
. The roof is sloped and covered with cracked stone tiles. Climbing the tiled roof requires a successful DC 10 Strength (Athletics) check. A failure by 5 or more causes the climber to slide down to the parapet, landing prone but taking no damage.
Compendium
- Sources->Dungeons & Dragons->Xanathar's Guide to Everything
you can see within range. Each pillar is a cylinder that has a diameter of 5 feet and a height of up to 30 feet. The ground where a pillar appears must be wide enough for its diameter, and you can
difficult terrain with a 10-foot radius that lasts until the rubble is cleared. Each 5-foot-diameter portion of the area requires at least 1 minute to clear by hand. If a pillar is created under a
Compendium
- Sources->Dungeons & Dragons->Curse of Strahd
W5. Veranda Resting on a flagstone veranda are three five-foot-diameter wooden tubs, their insides stained with grape juice. Each tub has a short ladder bolted to its side and a catch basin tucked
grapes from the vineyard are crushed into juice. The sliding wooden doors are chained shut from the inside, and the smaller door is barred shut from the inside. Breaking through either requires a successful DC 20 Strength check.
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
dragon’s magic, creating one or more of the following effects:
Background Check. Once per day, the dragon can cast the legend lore spell, requiring no spell components, naming any person, place, or
Compendium
- Sources->Dungeons & Dragons->Tales from the Yawning Portal->a4
-white spiral pattern, and it glistens as if coated with some substance.
The 30-foot-long cylinder is 10 feet in diameter and spins counterclockwise at about 10 feet per second. The inner surface is
covered with slippery oil. It is possible to slide through the cylinder by propelling oneself along the floor, but walking through this area without being knocked prone requires a successful DC 20 Dexterity (Acrobatics) check.
Compendium
- Sources->Dungeons & Dragons->Dungeon Master’s Guide (2014)
each extend 10 feet beyond the starting area. After that point, check on the Passage table for each passage to determine what lies beyond. Use the Beyond a Door table to determine what lies behind doors
. diameter; one passage at each cardinal direction 7 Circle, 40 ft. diameter; one passage in each cardinal direction; well in middle of room (might lead down to lower level) 8 Square, 20 × 20 ft
Compendium
- Sources->Dungeons & Dragons->Icewind Dale: Rime of the Frostmaiden
examines the protrusion can make a DC 15 Intelligence (History) check to discern its nature. (The dwarves’ Stonecunning trait can prove useful here.) On a successful check, the character can confirm
that the stone is neither naturally formed nor manually hewn, but rather shaped by magic. If the check succeeds by 5 or more, the character also discerns that that the protruding rock is of the top of
Compendium
- Sources->Dungeons & Dragons->Princes of the Apocalypse
you can see within range. Each pillar is a cylinder that has a diameter of 5 feet and a height of up to 30 feet. The ground where a pillar appears must be wide enough for its diameter, and you can
difficult terrain with a 10-foot radius that lasts until the rubble is cleared. Each 5-foot-diameter portion of the area requires at least 1 minute to clear by hand. If a pillar is created under a
Compendium
- Sources->Dungeons & Dragons->Storm King's Thunder
1. Main Entrance A muddy trail leads up to a 40-foot-wide open doorway, parked outside of which is a 30-foot-diameter boulder. North of the boulder is a 60-foot-tall outcropping of rock with a flat
, lopped-off peak. This outcropping can be climbed with a successful DC 15 Strength (Athletics) check. Standing in the shadows inside the doorway is Hruk, a male hill giant who reeks of dung. A swarm of