before being diameter creating reduces

Forcecage

Spells Player’s Handbook

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

Death Tyrant

Monsters Monster Manual

: Half damage. Failure or Success: If the target is a creature and this damage reduces it to 0 Hit Points, it disintegrates into dust. Death Ray. Dexterity Saving Throw: DC 17. Failure: 55 (10d10

);{"diceNotation":"10d10", "rollType":"damage", "rollAction":"Death Ray", "rollDamageType":"Necrotic"} Necrotic damage. Success: Half damage. Failure or Success: The target dies if the ray reduces it to 0

Beholder

Monsters Monster Manual

or Success: If the target is a creature and this damage reduces it to 0 Hit Points, it disintegrates into dust. 10: Death Ray. Dexterity Saving Throw: DC 16. Failure: 55 (10d10);{"diceNotation":"10d10

", "rollType":"damage", "rollAction":"Death Ray", "rollDamageType":"Necrotic"} Necrotic damage. Success: Half damage. Failure or Success: The target dies if the ray reduces it to 0 Hit

Glyph of Warding

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

it as part of creating the glyph. The spell must target a single creature or an area. The spell being stored has no immediate effect when cast in this way. When the glyph is triggered, the stored

Ankheg (Stranger Things)

Monsters Stranger Things: Welcome to the Hellfire Club

Tunneler. The ankheg can burrow through solid rock at half its Burrow Speed and leaves a 10-foot-diameter tunnel in its wake.Bite. Melee Attack Roll: +5 (with Advantage if the target is Grappled by

":"damage", "rollAction":"Acid Spray", "rollDamageType":"Acid"} Acid damage. Success: Half damage.Burrowing Insectile Predator Oversize insects, ankhegs burrow close to the surface, creating sprawling

Forcecage Legacy

Spells Basic Rules (2014)

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

Topi

Monsters The Tortle Package

Turn Resistance. The topi has advantage on saving throws against any effect that turns undead. Undead Fortitude. If damage reduces the topi to 0 hit points, it must make a Constitution saving throw

inside it dies too. The process of creating a topi is known only to a handful of evil priests and necromancers. Topis are more difficult to turn than ordinary zombies, and their spongy bodies make them

Eyestalk of Gzemnid

Monsters Planescape: Adventures in the Multiverse

Tunneler. The eyestalk can burrow through solid rock at half its burrow speed and leaves a 10-foot-diameter tunnel in its wake.Multiattack. The eyestalk uses Eradication Gaze, if available, and makes

);{"diceNotation":"10d10", "rollType":"damage", "rollAction":"Eradication Gaze", "rollDamageType":"necrotic"} necrotic damage. If this damage reduces a creature to 0 hit points, its body becomes a

Abjurer Wizard

Monsters Mordenkainen Presents: Monsters of the Multiverse

reduces the damage to the protected creature by 26 (4d10 + 4);{"diceNotation":"4d10+4", "rollType":"roll", "rollAction":"Arcane Ward"}, to a minimum of 0, and then vanishes.Abjurers specialize in creating

Yeenoghu

Monsters Mordenkainen Presents: Monsters of the Multiverse

. Yeenoghu causes an iron spike—5 feet tall and 1 inch in diameter—to burst from the ground at a point he can see within 100 feet of him. Any creature in the space where the spike emerges

or hyena that Yeenoghu can see can use its reaction to move up to its speed. Regional Effects The region containing Yeenoghu’s lair is warped by his magic, creating one or more of the

Vampire Spawn Legacy

Monsters Basic Rules (2014)

hit points equal to that amount. The reduction lasts until the target finishes a long rest. The target dies if this effect reduces its hit point maximum to 0.A Vampire’s Lair A vampire chooses a

of the night. Regional Effects The region surrounding a vampire’s lair is warped by the creature’s unnatural presence, creating any of the following effects: There’s a noticeable

Astral Dreadnought Legacy

Monsters Mordenkainen’s Tome of Foes

resembles a stone cave roughly 1,000 feet in diameter with a ceiling 100 feet high. Like a stomach, it contains the remains of the dreadnought's past meals. The dreadnought can't be harmed from within

damage reduces it to 0 hit points or it is incapacitated, the astral dreadnought swallows it. The swallowed target, along with everything it is wearing and carrying, appears in an unoccupied space on

Glyph of Warding Legacy

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

much damage on a successful one. Spell Glyph. You can store a prepared spell of 3rd level or lower in the glyph by casting it as part of creating the glyph. The spell must target a single

Yeenoghu Legacy

Monsters Out of the Abyss

. When Yeenoghu reduces a creature to 0 hit points with a melee attack on his turn, Yeenoghu can take a bonus action to move up to half his speed and make a bite attack.Multiattack. Yeenoghu makes three

same effect two rounds in a row. Yeenoghu causes an iron spike—5 feet tall and 1 inch in diameter—to burst from the ground at a point he can see within 100 feet of him. Any creature in

Ettin Ceremorph

Monsters Bigby Presents: Glory of the Giants

: 55 (10d10);{"diceNotation":"10d10", "rollType":"damage", "rollAction":"Extract Brain", "rollDamageType":"piercing"} piercing damage. If this damage reduces the target to 0 hit points, the ceremorph

sufficient food for two tadpoles, and the two tadpoles are able to transform the entirety of the ettin’s body, creating an ettin ceremorph. As part of the transformation process, one of the ettin’s

Vampire Legacy

Monsters Basic Rules (2014)

dies if this effect reduces its hit point maximum to 0. A humanoid slain in this way and then buried in the ground rises the following night as a vampire spawn under the vampire’s control. Charm

of the night. Regional Effects The region surrounding a vampire’s lair is warped by the creature’s unnatural presence, creating any of the following effects: There’s a

Vampire Spellcaster Legacy

Monsters Monster Manual (2014)

regains hit points equal to that amount. The reduction lasts until the target finishes a long rest. The target dies if this effect reduces its hit point maximum to 0. A humanoid slain in this way and

guarded by vampire spawn or other loyal creatures of the night. Regional Effects The region surrounding a vampire's lair is warped by the creature's unnatural presence, creating any of the following

Astral Dreadnought

Monsters Mordenkainen Presents: Monsters of the Multiverse

diameter with a ceiling 100 feet high. Like a stomach, it contains the remains of past meals. The dreadnought can’t be harmed from within the demiplane. If the dreadnought dies, the demiplane

", "rollAction":"Bite", "rollDamageType":"force"} force damage. If the target is a Huge or smaller creature and this damage reduces it to 0 hit points or it is incapacitated, the dreadnought swallows it. The

Vampire Warrior Legacy

Monsters Monster Manual (2014)

, and the vampire regains hit points equal to that amount. The reduction lasts until the target finishes a long rest. The target dies if this effect reduces its hit point maximum to 0. A humanoid slain

underground crypt or vault guarded by vampire spawn or other loyal creatures of the night. Regional Effects The region surrounding a vampire's lair is warped by the creature's unnatural presence, creating any

Juiblex

Monsters Mordenkainen Presents: Monsters of the Multiverse

, creating one or more of the following effects: Acidic Water. Small bodies of water, such as ponds or wells, within 1 mile of the lair turn highly acidic, corroding any object that touches them. Corrupted

, 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

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

dragon’s lair is altered by the dragon’s magic, creating one or more of the following effects: Time Dilations. Time fluctuates within 3 miles of the lair. Short rests taken within this

Ancient Amethyst Dragon

Monsters Fizban's Treasury of Dragons

multiverse form the centerpiece of an amethyst dragon’s hoard. Creating an Amethyst Dragon Use the Amethyst Dragon Personality Traits and Amethyst Dragon Ideals tables to inspire your portrayal of

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

Emerald Dragon Wyrmling

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

create illusions, allowing them to better conceal their treasures from prying eyes and divinations. Creating an Emerald Dragon Use the Emerald Dragon Personality Traits and Emerald Dragon Ideals

Adult Amethyst Dragon

Monsters Fizban's Treasury of Dragons

examining the nature of the multiverse form the centerpiece of an amethyst dragon’s hoard. Creating an Amethyst Dragon Use the Amethyst Dragon Personality Traits and Amethyst Dragon Ideals

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

Halaster Blackcloak

Monsters Waterdeep: Dungeon of the Mad Mage

exceed those of most mortal wizards. His expertise with magic gates allows him to travel far and wide to engage in magical research. He spends much of his time creating gates, moving them around, and

ghostly, 1-foot-diameter humanoid eye surrounded by motes of light. The sensor is stationary, though Halaster can reorient the eye to face in any direction. Halaster can see through the eye as though he

Zorak Lightdrinker

Monsters Waterdeep: Dungeon of the Mad Mage

amount. The reduction lasts until the target finishes a long rest. The target dies if this effect reduces its hit point maximum to 0. A humanoid slain in this way and then buried in the ground rises

unnatural presence, creating any of the following effects: There's a noticeable increase in the populations of bats, rats, and wolves in the region. Plants within 500 feet of the lair wither, and their

Bavlorna Blightstraw

Monsters The Wild Beyond the Witchlight

company, but one hag will occasionally visit another to plot against the third sister, creating a vicious circle in which Bavlorna and Endelyn plot against Skabatha, Endelyn and Skabatha conspire

the start of each of its turns. If the swallowed creature is one of Bavlorna’s lornlings, Bavlorna gains all the lornling’s memories when the acid damage reduces it to 0 hit points

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

hoard is usually a cataloged, orderly collection of war gear, which can contain ancient relics of immense power. Creating a Sapphire Dragon Use the Sapphire Dragon Personality Traits and Sapphire

Young Emerald Dragon

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

spells that create illusions, allowing them to better conceal their treasures from prying eyes and divinations. Creating an Emerald Dragon Use the Emerald Dragon Personality Traits and Emerald Dragon

Young Sapphire Dragon

Monsters Fizban's Treasury of Dragons

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

, which can contain ancient relics of immense power. Creating a Sapphire Dragon Use the Sapphire Dragon Personality Traits and Sapphire Dragon Ideals tables to inspire your portrayal of distinctive

Ancient Sapphire Dragon

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

immense power. Creating a Sapphire Dragon Use the Sapphire Dragon Personality Traits and Sapphire Dragon Ideals tables to inspire your portrayal of distinctive sapphire dragon characters. Sapphire

Q33. Collapsed Ceiling

Compendium - Sources->Dungeons & Dragons->Curse of Strahd

Q33. Collapsed Ceiling The roof over this part of the mansion has collapsed, creating a twenty-foot-diameter gaping hole with broken rafters bisecting it. Dark storm clouds roll across the sky

Wild Magic Zone

Compendium - Sources->Dungeons & Dragons->Dungeon Master’s Guide

Wild Magic Zone A past magical disaster or uncontrolled surge of power in a particular place can cause the fabric of magic to unravel, creating a wild magic zone. In such an area, which is typically

no more than 300 feet in diameter, magic behaves unpredictably. Whenever a creature expends a spell slot to cast a spell in a wild magic zone, roll 1d20. If you roll a 20 on the die, roll on the Wild Magic Surge table in the Player’s Handbook to create a magical effect.

Unstable Gravity Zone

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

, creating an area of unstable gravity. An area of unstable gravity is normally filled with debris from smashed objects that aren’t affixed to a surface. A creature near an area of unstable gravity can

DC 16), except that it is permanent and typically covers an area that is 60 feet in diameter and 60 feet high. Every 1d4 rounds, the effect is suppressed for 1d4 rounds and normal gravity returns, causing creatures and objects to fall.

Adult Sapphire Dragon

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

intrusion. The centerpiece of a sapphire dragon’s hoard is usually a cataloged, orderly collection of war gear, which can contain ancient relics of immense power. Creating a Sapphire Dragon Use

D&D Beyond

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