borders building diffusing cone reactions

Copper Dragon Wyrmling

Monsters Monster Manual

. Constitution Saving Throw: DC 11, each creature in a 15-foot Cone. Failure: The target can’t take Reactions; its Speed is halved; and it can take either an action or a Bonus Action on its turn, not both. This effect lasts until the end of its next turn.Acid

Young Copper Dragon

Monsters Monster Manual

", "rollAction":"Acid Breath", "rollDamageType":"Acid"} Acid damage. Success: Half damage. Slowing Breath. Constitution Saving Throw: DC 14, each creature in a 30-foot Cone. Failure: The target can&rsquo

;t take Reactions; its Speed is halved; and it can take either an action or a Bonus Action on its turn, not both. This effect lasts until the end of its next turn.Acid

Umber Hulk

Monsters Monster Manual

":"Slashing"} Slashing damage.Confusing Gaze (Recharge 5–6);{"diceNotation":"1d6", "rollType":"recharge", "rollAction":"Confusing Gaze"}. Wisdom Saving Throw: DC 14, each creature in a 30-foot Cone

. Failure: The target can’t take Reactions until the start of the umber hulk’s next turn, and the target rolls 1d8;{"diceNotation":"1d8", "rollType":"roll", "rollAction":"Confusing Gaze"} to

Ancient Copper Dragon

Monsters Monster Manual

. Constitution Saving Throw: DC 22, each creature in a 90-foot Cone. Failure: The target can’t take Reactions; its Speed is halved; and it can take either an action or a Bonus Action on its turn

Adult Copper Dragon

Monsters Monster Manual

. Constitution Saving Throw: DC 18, each creature in a 60-foot Cone. Failure: The target can’t take Reactions; its Speed is halved; and it can take either an action or a Bonus Action on its turn

Beholder

Monsters Monster Manual

", "rollDamageType":"Necrotic"} Necrotic damage. Until the end of the target’s next turn, the target’s Speed is halved; the target can’t take Reactions; and it can take either an action or a

and rolls a 1 has the Prone condition. If the beholder dies or moves its lair elsewhere, these effects end immediately.Antimagic Cone. The beholder’s central eye emits an antimagic wave in a

Death Tyrant

Monsters Monster Manual

", "rollAction":"Slowing ray", "rollDamageType":"Necrotic"} Necrotic damage. Until the end of the target’s next turn, the target can’t take Reactions; its Speed is halved; and it can take

throw or gain no benefit from that rest. If the death tyrant dies or moves its lair elsewhere, these effects end immediately.PoisonNegative Energy Cone. The death tyrant’s central eye emits an

Arch-hag

Monsters Monster Manual

":"Force"} Force damage. If the target is a Large or smaller creature, it has the Prone condition. Crackling Wave. Dexterity Saving Throw: DC 22, each creature in a 60-foot Cone. Failure: 32 (5d12

hag’s next turn. The target can’t take Reactions until the curse ends. Spellcasting. The hag casts one of the following spells, requiring no Material components and using Charisma as the

Spirit Dragon Wyrmling

Monsters Forgotten Realms: Adventures in Faerûn

by this breath in a 15-foot Cone. Failure: The target’s Speed is halved, it can’t take Reactions, and it can take either an action or a Bonus Action on its turn, not both. It repeats the

);{"diceNotation":"1d6", "rollType":"recharge", "rollAction":"Ruinous Breath"}. Constitution Saving Throw: DC 12, each creature in a 15-foot Cone. Failure: 13 (3d8);{"diceNotation":"3d8", "rollType":"damage

Young Spirit Dragon

Monsters Forgotten Realms: Adventures in Faerûn

Saving Throw: DC 15, each creature in a 30-foot Cone. Failure: 36 (8d8);{"diceNotation":"8d8", "rollType":"damage", "rollAction":"Ruinous Breath", "rollDamageType":"Necrotic"} Necrotic damage. Success

: Half damage. Time-Warping Breath. Wisdom Saving Throw: DC 15, each creature that isn’t currently affected by this breath in a 30-foot Cone. Failure: The target’s Speed is halved, it can

Ancient Spirit Dragon

Monsters Forgotten Realms: Adventures in Faerûn

22, each creature in a 90-foot Cone. Failure: 72 (16d8);{"diceNotation":"16d8", "rollType":"damage", "rollAction":"Ruinous Breath", "rollDamageType":"Necrotic"} Necrotic damage. Success: Half damage

: Legend Lore (as an action), Sequester Time-Warping Breath. Wisdom Saving Throw: DC 22, each creature that isn’t currently affected by this breath in a 90-foot Cone. Failure: The target’s Speed

Adult Spirit Dragon

Monsters Forgotten Realms: Adventures in Faerûn

. Wisdom Saving Throw: DC 18, each creature that isn’t currently affected by this breath in a 60-foot Cone. Failure: The target’s Speed is halved, it can’t take Reactions, and it can

a 60-foot Cone. Failure: 63 (14d8);{"diceNotation":"14d8", "rollType":"damage", "rollAction":"Ruinous Breath", "rollDamageType":"Necrotic"} Necrotic damage. Success: Half damage. Spellcasting. The

Two-Headed Cerberus

Monsters Mythic Odysseys of Theros

cone of molten rock. Each creature in the cone must make a DC 12 Dexterity saving throw, taking 10 (3d6);{"diceNotation":"3d6","rollType":"damage","rollAction":"Breath Weapon","rollDamageType":"fire

of the dead. Such isn’t the case for mortals, though, and they eagerly set upon those who tread too close to the Underworld’s borders. Feared by the living and the dead, cerberi patrol

Wand of Fear Legacy

Magic Items Basic Rules (2014)

destroyed. Command. While holding the wand, you can use an action to expend 1 charge and command another creature to flee or grovel, as with the command spell (save DC 15). Cone of Fear. While

holding the wand, you can use an action to expend 2 charges, causing the wand's tip to emit a 60-foot cone of amber light. Each creature in the cone must succeed on a DC 15 Wisdom saving throw or become

Underworld Cerberus

Monsters Mythic Odysseys of Theros

","rollAction":"Bite","rollDamageType":"fire"} fire damage. Breath Weapon (Recharge 5–6);{"diceNotation":"1d6","rollType":"recharge","rollAction":"Breath Weapon"} The cerberus exhales a 30-foot cone

of molten rock. Each creature in the cone must make a DC 15 Dexterity saving throw, taking 21 (6d6);{"diceNotation":"6d6","rollType":"damage","rollAction":"Breath Weapon","rollDamageType":"fire"} fire

Copper Dragon Wyrmling Legacy

Monsters Basic Rules (2014)

-foot cone. Each creature in that area must succeed on a DC 11 Constitution saving throw. On a failed save, the creature can't use reactions, its speed is halved, and it can't make more than one attack

Archon of Boundaries

Monsters Monstrous Compendium Vol. 4: Eldraine Creatures

following spells, using Charisma as the spellcasting ability: 1/day each: daylight, lesser restorationThe archon can take up to three reactions per round but only one per turn. Archon’s Pursuit

celestial realms to watch over the boundary of the wilds and protect those who dare to cross it. Sometimes knights of the realm get the idea that they can expand the borders of their land and keep the

Young Copper Dragon Legacy

Monsters Basic Rules (2014)

","rollDamageType":"acid"} acid damage on a failed save, or half as much damage on a successful one. Slowing Breath. The dragon exhales gas in a 30-foot cone. Each creature in that area must succeed on

a DC 14 Constitution saving throw. On a failed save, the creature can't use reactions, its speed is halved, and it can't make more than one attack on its turn. In addition, the creature can use either

Clockwork Dragon

Monsters Acquisitions Incorporated

clockwork dragon exhales fire in a 15-foot cone. Each creature in that area must make a DC 11 Dexterity saving throw, taking 14 (4d6);{"diceNotation":"4d6","rollType":"damage","rollAction":"Fire

advanced intellect allowing it to be programmed with a wide range of orders, as well as being capable of wholly independent reactions to potential threats. Though most clockwork dragons have a breath weapon

Spiderdragon

Monsters Vecna: Eve of Ruin

spiderlings in a 30-foot cone. Each creature in that area must make a DC 15 Dexterity saving throw, taking 33 (6d10);{"diceNotation":"6d10", "rollType":"damage", "rollAction":"Spiderling Breath

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

Beholder Legacy

Monsters Monster Manual (2014)

Antimagic Cone. The beholder’s central eye creates an area of antimagic, as in the antimagic field spell, in a 150-foot-cone. At the start of each of its turns, the beholder decides which way

the cone faces and whether the cone is active. The area works against the beholder’s own eye rays.Bite. Melee Weapon Attack: +5;{"diceNotation":"1d20+5","rollType":"to hit","rollAction":"Bite

Death Tyrant Legacy

Monsters Monster Manual (2014)

Negative Energy Cone. The death tyrant’s central eye emits an invisible, magical 150-foot cone of negative energy. At the start of each of its turns, the tyrant decides which way the cone faces

and whether the cone is active. Any creature in that area can’t regain hit points. Any humanoid that dies there becomes a zombie under the tyrant’s command. The dead humanoid retains its

High Fae Noble

Monsters Monstrous Compendium Vol. 4: Eldraine Creatures

, prestidigitation, suggestion 1/day each: major image, zone of truthThe high fae can take up to three reactions per round but only one per turn. Capricious Step. Immediately after taking damage, the

been given dominion over a small aspect of the natural world; there are dukes and duchesses for each of the seasons, and noble archivists track every promise made and broken within the borders of

Drow Mother of Rebellion

Monsters Mordenkainen Presents: Monsters of the Multiverse

DC 15 Constitution saving throw or suffer the following effects for 1 minute: the target’s speed is halved, it has disadvantage on Dexterity saving throws, and it can’t use reactions

, providing protection or advice.A Matron Mother’s Lair The palace of a drow matron mother is her home and fortress. Sigils throughout the building allow the matron mother to use the following

"The Demogorgon"

Monsters Infernal Machine Rebuild

"}. The ettin’s right head exhales fire in a 30-foot cone. Each creature in that area must make a DC 14 Dexterity saving throw, taking 45 (10d8);{"diceNotation":"10d8","rollType":"damage

","rollAction":"Cold Breath"}. The ettin’s left head exhales an icy blast in a 30-foot cone. Each creature in that area must make a DC 14 Constitution saving throw, taking 45 (10d8);{"diceNotation":"10d8

Lorthuun

Monsters Out of the Abyss

Antimagic Cone. The beholder's central eye creates an area of antimagic, as in the antimagic field spell, in a 150-foot-cone. At the start of each of its turns, the beholder decides which way the

cone faces and whether the cone is active. The area works against the beholder's own eye rays.Bite. Melee Weapon Attack: +5;{"diceNotation":"1d20+5","rollType":"to hit","rollAction":"Bite"} to hit, reach

Alustriel Silverhand

Monsters Vecna: Eve of Ruin

next turn. Argent Blaze (Requires Silver Fire). Alustriel summons a 60- foot cone of silver fire. Each creature in that area must make a DC 22 Dexterity saving throw, taking 77 (14d10);{"diceNotation

are to spread kindness, reward virtue, and promote a culture of compassion throughout the multiverse. She is good at building alliances and quick to intervene when she senses a threat to the forces of

Adult Copper Dragon Legacy

Monsters Basic Rules (2014)

gas in a 60-foot cone. Each creature in that area must succeed on a DC 18 Constitution saving throw. On a failed save, the creature can't use reactions, its speed is halved, and it can't make more

Planar Incarnate (Fiend Form)

Monsters Planescape: Adventures in the Multiverse

":"recharge", "rollAction":"Planar Exhalation"}. The incarnate exhales concentrated energy native to its plane in a 60-foot cone. Each creature in that area must make a DC 23 Constitution saving throw. On a

damage only.The incarnate can take up to three reactions per round but only one per turn. Searing Gaze. In response to being hit by an attack roll, the incarnate turns its magical gaze toward one

Drow Matron Mother

Monsters Mordenkainen Presents: Monsters of the Multiverse

DC 15 Constitution saving throw or suffer the following effects for 1 minute: the target’s speed is halved, it has disadvantage on Dexterity saving throws, and it can’t use reactions

Underdark armies arrayed against the followers of Lolth. A Matron Mother’s Lair The palace of a drow matron mother is her home and fortress. Sigils throughout the building allow the matron

Planar Incarnate (Celestial Form)

Monsters Planescape: Adventures in the Multiverse

", "rollAction":"Planar Exhalation"}. The incarnate exhales concentrated energy native to its plane in a 60-foot cone. Each creature in that area must make a DC 23 Constitution saving throw. On a

only.The incarnate can take up to three reactions per round but only one per turn. Searing Gaze. In response to being hit by an attack roll, the incarnate turns its magical gaze toward one creature it

Ancient Copper Dragon Legacy

Monsters Basic Rules (2014)

exhales gas in a 90-foot cone. Each creature in that area must succeed on a DC 22 Constitution saving throw. On a failed save, the creature can't use reactions, its speed is halved, and it can't make more

Cradle of the Frost Scion

Monsters Bigby Presents: Glory of the Giants

"}. The cradle exhales a blast of frost in a 90-foot cone. Each creature in that area must make a DC 23 Constitution saving throw. On a failed save, a creature takes 52 (8d12);{"diceNotation":"8d12

Mist", "rollDamageType":"cold"} cold damage and be unable to use reactions until the start of its next turn. The mist vanishes at the end of the cradle’s turn.

Vecna the Archlich

Monsters Vecna: Eve of Ruin

flying, spectral entities that fill a 120-foot cone and pass through all creatures in that area before dissipating. Each creature in that area must make a DC 22 Constitution saving throw. On a failed

reactions per round but only one per turn. Dread Counterspell. Vecna utters a dread word to interrupt a creature he can see that is casting a spell. If the spell is 4th level or lower, it fails and

Adult Time Dragon

Monsters Planescape: Adventures in the Multiverse

":"recharge", "rollAction":"Time Breath"}. The dragon exhales a wave of shimmering light in a 60-foot cone. Nonmagical objects and vegetation in that area that aren’t being worn or carried crumble to

succeeds on three of these saves.The dragon can take up to three reactions per round but only one per turn. Reactive Rend. After using Legendary Resistance or in response to being hit by an attack

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