Search Results
All Results
Characters
Compendium
Spells
Items
Monsters
Vehicles
Forums
Returning 35 results for 'before being diameter continuously reduced'.
Other Suggestions:
before being diameter continuous reduced
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
succeed on a DC 19 Dexterity saving throw or be touched by it, taking 8d10 Force damage. A creature reduced to 0 Hit Points by this damage is obliterated, leaving its possessions behind but no other
Spells
Elemental Evil Player's Companion
reduced to 0 hit points, a pillar crumbles into rubble, which creates an area of difficult terrain with a 10-foot radius that lasts until the rubble is cleared. Each 5-foot-diameter portion of the area
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
Ice Devil (Spear Variant)
Legacy
This doesn't reflect the latest rules and lore.
Learn More
Monsters
Monster Manual (2014)
":"Ice Spear","rollDamageType":"cold"} cold damage. If the target is a creature, it must succeed on a DC 15 Constitution saving throw, or for 1 minute, its speed is reduced by 10 feet; it can take either
it's a hemispherical dome up to 20 feet in diameter.
When the wall appears, each creature in its space is pushed out of it by the shortest route. The creature chooses which side of the wall to end up on
Monsters
Spelljammer: Adventures in Space
Spelljammer Overload. If the leech is reduced to 0 hit points while attached to a ship that has a spelljamming helm, the creature attuned to that helm must make a DC 13 Constitution saving throw. On
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
Monsters
Spelljammer: Adventures in Space
-foot-diameter tunnel in its wake.
Unusual Nature. The dragon doesn’t require air.Multiattack. The dragon makes one Bite attack and two Claw attacks.
Bite. Melee Weapon Attack: +11;{"diceNotation
","rollDamageType":"cold"} cold damage, and its speed is reduced to 0 until the end of its next turn. On a successful save, the creature takes half as much damage, and its speed isn’t
Monsters
Spelljammer: Adventures in Space
-foot-diameter tunnel in its wake.
Unusual Nature. The dragon doesn’t require air.Multiattack. The dragon makes one Bite attack and two Claw attacks.
Bite. Melee Weapon Attack: +14;{"diceNotation
Breath","rollDamageType":"cold"} cold damage, and its speed is reduced to 0 until the end of its next turn. On a successful save, the creature takes half as much damage, and its speed isn’t
Monsters
Mordenkainen Presents: Monsters of the Multiverse
, 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
critical hit or is reduced to 0 hit points, it sprays acid; each creature within 5 feet of it takes acid damage equal to its number of Hit Dice.
Acid, Poison; Bludgeoning, Piercing, and Slashing that is NonmagicalCold, Fire, Lightning
Monsters
Princes of the Apocalypse
of Imix, and disappear if Imix is reduced to 0 hit points.Imix can take 3 legendary actions, choosing from the options below. Only one legendary action option can be used at a time and only at the end
die and ponds dry up; after 10 days, unprotected livestock dies, and wells and small rivers dry up; after 20 days, large lakes and rivers are reduced in depth by 20 feet and shrink accordingly
Monsters
Fizban's Treasury of Dragons
next turn. On a successful save, the creature takes half as much damage, and its speed isn’t reduced.
Spellcasting (Psionics). The dragon casts one of the following spells, requiring no spell
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
Monsters
Fizban's Treasury of Dragons
next turn. On a successful save, the creature takes half as much damage, and its speed isn’t reduced.
Spellcasting (Psionics). The dragon casts one of the following spells, requiring no spell
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
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
target the ground under a creature if that creature is Medium or smaller. Each pillar has AC 5 and 30 hit points. When reduced to 0 hit points, a pillar crumbles into rubble, which creates an area of
Compendium
- Sources->Dungeons & Dragons->Baldur's Gate: Descent into Avernus
. The corridor is not guarded while the flying fortress is moored at the Stygian Dock. Signal Vents Tiny hatches in the hull connect to 1-foot-diameter chutes that ascend to the vessel’s command deck
. During battle, Zariel’s imp couriers use these chutes to enter and exit the flying fortress. Characters reduced to Tiny size or in gaseous form can navigate these narrow chutes to reach the command
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
target the ground under a creature if that creature is Medium or smaller. Each pillar has AC 5 and 30 hit points. When reduced to 0 hit points, a pillar crumbles into rubble, which creates an area of
Compendium
- Sources->Dungeons & Dragons->The Wild Beyond the Witchlight
. Shadows that are reduced to 0 hit points are destroyed and reattach to their original owners as normal shadows. A creature whose Strength is reduced to 0 by a shadow’s Strength Drain attack does not die
-diameter sphere of white glass sheds bright light out to a range of 20 feet and dim light for an additional 20 feet. Casting dispel magic on the sphere automatically causes its light to go out. Treasure. Characters who search the shadow theater find a pair of opera glasses (250 gp) resting on one seat.
Compendium
- Sources->Dungeons & Dragons->Spelljammer: Adventures in Space->Boo’s Astral Menagerie
and leaves a 5-foot-diameter tunnel in its wake.
Unusual Nature. The dragon doesn’t require air.
Actions
Bite. Melee Weapon Attack: +4 to hit, reach 5 ft., one target. Hit: 5 (1d6 + 2) piercing
save, the creature takes 13 (3d8) cold damage, and its speed is halved until the end of its next turn. On a successful save, the creature takes half as much damage, and its speed isn’t reduced
Compendium
- Sources->Dungeons & Dragons->Mordenkainen's Tome of Foes
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 returns to the space where it began this movement. Slimy Organs
. This creature has resistance to bludgeoning, piercing, and slashing damage from nonmagical attacks. Whenever this creature suffers a critical hit or is reduced to 0 hit points, all creatures within 5 feet of it take acid damage equal to its number of Hit Dice.
Monsters
Fizban's Treasury of Dragons
needing to make an ability check.
Tunneler. The dragon can burrow through solid rock at half its burrowing speed and can leave a 20-foot-diameter tunnel in its wake.Multiattack. The dragon makes one
magically transforms into any creature that is Medium or Small, while retaining its game statistics (other than its size). This transformation ends if the dragon is reduced to 0 hit points or uses a
Compendium
- Sources->Dungeons & Dragons->Spelljammer: Adventures in Space->Boo’s Astral Menagerie
choose to succeed instead.
Tunneler. The dragon can burrow through solid rock at half its burrowing speed and leaves a 15-foot-diameter tunnel in its wake.
Unusual Nature. The dragon doesn’t require
creature takes 36 (8d8) cold damage, and its speed is reduced to 0 until the end of its next turn. On a successful save, the creature takes half as much damage, and its speed isn’t reduced.
Bonus Actions
Compendium
- Sources->Dungeons & Dragons->Phandelver and Below: The Shattered Obelisk
throat from which the intellect snares emerged. N2: Throat The great creature’s throat is an organic passage 10 feet in diameter. A distant pulse thrums through the floor, and contractions cause the
membrane is reduced to 0 hit points, it tears open with a violent shudder. The Nematode reacts with regurgitation. This forces its digestive juices upward and into its mouth, which opens. When the membrane
Compendium
- Sources->Dungeons & Dragons->Waterdeep: Dungeon of the Mad Mage
is a Large object weighing 1,100 pounds. It has AC 17, 80 hit points, and immunity to poison and psychic damage. It contains a bed of grave dirt upon which Keresta sleeps. If reduced to 0 hit points
shadows hovering over them. Characters who examine the mural closely and succeed on a DC 15 Wisdom (Perception) check notice four 1-inch-diameter holes bored into some of the corpses. Keresta uses these
Magic Items
The Wild Beyond the Witchlight
—eight of each animal. In either form, the cauldron is roughly 3 feet in diameter and has a 2-foot-wide mouth, a round lid with a molded handle at the top, and eight clawed feet for stability. The
be aged to the point of decrepitude. In this state, the creature’s speed is halved, the range of its vision and hearing is reduced to 30 feet, and it has disadvantage on all ability checks
Compendium
- Sources->Dungeons & Dragons->Spelljammer: Adventures in Space->Boo’s Astral Menagerie
leaves a 10-foot-diameter tunnel in its wake.
Unusual Nature. The dragon doesn’t require air.
Actions
Multiattack. The dragon makes one Bite attack and two Claw attacks.
Bite. Melee Weapon
(6d8) cold damage, and its speed is halved until the end of its next turn. On a successful save, the creature takes half as much damage, and its speed isn’t reduced.
Bonus Actions
Phase (2/Day). The
Compendium
- Sources->Dungeons & Dragons->Candlekeep Mysteries
centuries, all the caverns except one have been reduced to rubble as the area fell under the sway of a purple worm. Only a small section of the old cavern complex now remains—the Hall of Rainbows. When the
a crack in the face of a cliff that looks like an entrance to an undamaged cave. Around it, a few fifteen-foot-diameter, rubble-filled holes provide clear evidence of a purple worm’s passage. Vultures
Compendium
- Sources->Dungeons & Dragons->Journeys through the Radiant Citadel
following description: The Pedestal of Judgment appears before the city has faded from view. The sixty-foot-diameter disc is made from golden rose marble and floats three hundred feet above the rocky
creature is freed if its crystal is reduced to 0 hit points, or if the crystal is targeted with a dispel magic spell cast at 5th level or higher. The crystals leave their prisoners magically drained. If
Compendium
- Sources->Dungeons & Dragons->Waterdeep: Dungeon of the Mad Mage
in the northeastern alcove.
Shockerstomper consists of a 30-foot-diameter, saucer-shaped platform mounted atop seven mechanical legs. Crowning the platform are three spherical turrets, each with a
reaction to detach it from its main body. Whenever one of its legs is disabled, Shockerstomper’s walking speed is reduced by 10 feet. The whole contraption topples over and shuts down if four of its seven
Compendium
- Sources->Dungeons & Dragons->Spelljammer: Adventures in Space->Boo’s Astral Menagerie
, it can choose to succeed instead.
Tunneler. The dragon can burrow through solid rock at half its burrowing speed and leaves a 20-foot-diameter tunnel in its wake.
Unusual Nature. The dragon
save, the creature takes 36 (8d8) cold damage, and its speed is reduced to 0 until the end of its next turn. On a successful save, the creature takes half as much damage, and its speed isn’t reduced
Compendium
- Sources->Dungeons & Dragons->Waterdeep: Dungeon of the Mad Mage
. Between the chairs stand alabaster busts of Halaster atop wooden pedestals.
Wand. Lying on the floor in the middle of the room is a 20-foot-diameter, frayed circular rug adorned with Halaster’s
that would target the wand’s user targets the wand instead. If reduced to 0 hit points, the wand crumbles into dust and is destroyed. A dispel evil and good spell cast on the wand rids it of
Compendium
- Sources->Dungeons & Dragons->Dungeon Master’s Guide
Sphere of Annihilation Wondrous Item, Legendary Conceptopolis Sphere of Annihilation This 2-foot-diameter black sphere is a hole in the multiverse, hovering in space and stabilized by a magical
(minimum 5 feet). Any creature whose space the sphere enters must succeed on a DC 19 Dexterity saving throw or be touched by it, taking 8d10 Force damage. A creature reduced to 0 Hit Points by this
Compendium
- Sources->Dungeons & Dragons->D&D Beyond Basic Rules
Sphere of Annihilation Wondrous Item, Legendary 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
space the sphere enters must succeed on a DC 19 Dexterity saving throw or be touched by it, taking 8d10 Force damage. A creature reduced to 0 Hit Points by this damage is obliterated, leaving its
Monsters
Fizban's Treasury of Dragons
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
retaining its game statistics (other than its size). This transformation ends if the dragon is reduced to 0 hit points or uses a bonus action to end it.
Psychic Step. The dragon magically teleports to an unoccupied space it can see within 60 feet of it.
Compendium
- Sources->Dungeons & Dragons->Tales from the Yawning Portal->a5
suspended in the air.
In the west side of the room is a black gate, and on the wall near it is a contact stone.
Creatures. One reduced-threat aboleth (see “Reduced-Threat Monsters” above) dwells
deep in the pool. Within this room, the aboleth can use the water globes (see “Water Globes” below) to move around. The aboleth’s ordeal in the Doomvault has weakened it, making it a reduced threat. In
Monsters
Fizban's Treasury of Dragons
and using Intelligence as the spellcasting ability (spell save DC 17).
Tunneler. The dragon can burrow through solid rock at half its burrowing speed and can leave a 15-foot-diameter tunnel in its
Shape. The dragon magically transforms into any creature that is Medium or Small, while retaining its game statistics (other than its size). This transformation ends if the dragon is reduced to 0 hit
Monsters
Fizban's Treasury of Dragons
-foot-diameter tunnel in its wake.
Warp Perception (1/Day). The dragon can cast mirage arcane, requiring no spell components and using Intelligence as the spellcasting ability.Multiattack. The dragon
transformation ends if the dragon is reduced to 0 hit points or uses a bonus action to end it.
Psychic Step. The dragon magically teleports to an unoccupied space it can see within 60 feet of it.
Compendium
- Sources->Dungeons & Dragons->Curse of Strahd
that surrounds the field is 250 feet in diameter and ranges from 5 to 10 feet high. Any creature that climbs over the black boulders has a 10 percent chance of being struck by lightning, taking 44 (8d10
statue takes fire damage after being splashed with oil, it catches fire, taking 2d6 fire damage each round. If the statue is reduced to 0 hit points, it collapses, and the magic gem tumbles onto the field
Compendium
- Sources->Dungeons & Dragons->Spelljammer: Adventures in Space->Boo’s Astral Menagerie
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 that of a snail. It has a single watery eye at one end
—
Challenge 1 (200 XP) Proficiency Bonus +2
Spelljammer Overload. If the leech is reduced to 0 hit points while attached to a ship that has a spelljamming helm, the creature attuned to that helm must make






