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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

determine what it does on its next turn: 1–4. The target does nothing.5–6. The target takes no action or Bonus Action and uses all its movement to move in a random direction.7–8. The

Faerie Dragon Youth

Monsters Monster Manual

, each creature in a 15-foot Cone. Failure: The target has the Incapacitated condition until the end of its next turn and uses all its movement on its turn to move in a random direction. Spellcasting

Faerie Dragon Adult

Monsters Monster Manual

, each creature in a 15-foot Cone. Failure: The target has the Incapacitated condition and repeats the save at the end of each of its turns, ending the effect on itself on a success. After 1 minute, it

succeeds automatically. While Incapacitated, the target uses all its movement on each of its turns to move in a random direction. Spellcasting. The dragon casts one of the following spells

Staff of Power

Magic Items Dungeon Master’s Guide

must expend to cast the spell. Spell Charge Cost Cone of Cold 5 Fireball (level 5 version) 5 Globe of Invulnerability 6 Hold Monster 5 Levitate 2 Lightning

. You have a 50 percent chance to instantly travel to a random plane of existence, avoiding the explosion. If you fail to avoid the effect, you take Force damage equal to 16 times the number of

Elemental Cataclysm

Monsters Monster Manual

effects at random (roll 1d4;{"diceNotation":"1d4", "rollType":"roll", "rollAction":"Cataclymic Event"}): 1: Clinging Flames. Dexterity Saving Throw: DC 23, each creature in a 60-foot-radius Sphere

: Half damage. Failure or Success: The target starts burning.2: Freezing Waves. Strength Saving Throw: DC 23, each creature in a 90-foot Cone. Failure: 22 (5d8);{"diceNotation":"5d8", "rollType":"damage

Orb of Damara

Magic Items Forgotten Realms: Adventures in Faerûn

A wizard named Damara created this orb while devising a way to become a dragon. Aided by a mysterious magician (actually an aspect of Tiamat in disguise), Damara eventually created an Artifact that

Cone. When you do, choose Acid, Cold, Fire, Lightning, or Poison. Each creature in the Cone makes a DC 18 Dexterity saving throw, taking 6d6;{"diceNotation":"6d6", "rollType":"roll", "rollAction

Crown of Horns

Magic Items Forgotten Realms: Adventures in Faerûn

transformation is complete, you become a Lich under the DM's control. Each time you use this Artifact's Cone of Undeath or Myrkul's Hand benefit, there is a 10 percent cumulative chance that you

instantly complete this transformation. Cone of Undeath. You can take a Magic action to unleash a wave of unholy light in a 60-foot Cone. Each creature in the Cone makes a DC 18 Constitution saving throw

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

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

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

Yestabrod

Monsters Out of the Abyss

","rollType":"damage","rollAction":"Slam","rollDamageType":"poison"} poison damage. Caustic Spores (1/Day). Yestabrod releases spores in a 30-foot cone. Each creature in that area must succeed on a DC 12

random form of indefinite madness (determined by rolling on the Madness of Zuggtmoy table in appendix D) that lasts until the creature is cured of the disease or dies. While infected in this way, the

"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

Staff of Power Legacy

Magic Items Basic Rules (2014)

save DC and spell attack bonus: cone of cold (5 charges), fireball (5th-level version, 5 charges), globe of invulnerability (6 charges), hold monster (5 charges), levitate (2 charges), lightning bolt

a 50 percent chance to instantly travel to a random plane of existence, avoiding the explosion. If you fail to avoid the effect, you take force damage equal to 16 × the number of charges in the

Eyedrake

Monsters Fizban's Treasury of Dragons

", "rollAction":"Antimagic Breath"}. The eyedrake emits a magic wave in a 30-foot cone. Each creature in that area must make a DC 14 Constitution saving throw, taking 39 (6d12);{"diceNotation":"6d12

creatures and objects of the eyedrake’s choice in that area. Eye Rays. The eyedrake shoots three of the following magical eye rays at random;{"diceNotation":"1d6","rollType":"roll","rollAction":"Eye

Lady Illmarrow

Monsters Eberron: Rising from the Last War

, polymorph 5th level (3 slots): cloudkill, cone of cold, hold monster, scrying 6th level (2 slot): chain lightning, circle of death, create undead 7th level (2 slot): finger of death, forcecage

effect on itself on a success. Poison Breath (Recharge 5–6);{"diceNotation":"1d6","rollType":"recharge","rollAction":"Poison Breath"}. Illmarrow exhales poisonous gas in a 30-foot cone. Each creature in

Ancient Time Dragon

Monsters Planescape: Adventures in the Multiverse

Cycle of Rebirth. If the dragon dies, its soul coalesces into a steely egg and teleports to a random plane of existence. The egg is immune to all damage and hatches into a time dragon wyrmling after

Breath"}. The dragon exhales a wave of shimmering light in a 90-foot cone. Nonmagical objects and vegetation in that area that aren’t being worn or carried crumble to dust. Each creature in that area

Powered Armor

Magic Items Lost Laboratory of Kwalish

metal bosses adorn the armor in seemingly random fashion. On the back of the armor’s left gauntlet is a rectangular metal box, from which projects a short rod tipped with a cone-shaped red

Nafas

Monsters Quests from the Infinite Staircase

":"roll", "rollAction":"Last Wish"} days, regaining all his hit points and appearing in a random safe location on the Infinite Staircase. Legendary Resistance (5/Day). If Nafas fails a saving throw

Nafas can see ends its turn, Nafas exhales forceful winds in a 30-foot cone. Large or smaller creatures in that area must succeed on a DC 22 Strength saving throw or be pushed up to 15 feet away from him

Teeth of Dahlver-Nar

Magic Items Tasha’s Cauldron of Everything

a random destination, which could be on a different world of the Material Plane. Destroying the Teeth. Each tooth must be destroyed individually by sowing it in the area where the tooth’s story

, a skeleton, zombie, or ghoul also appears at a random location within 5 miles of you, searching for the living to kill. A humanoid killed by these undead rises as the same type of undead at the next

Faerie Dragon Youth

Compendium - Sources->Dungeons & Dragons->Monster Manual

) Piercing damage plus 2 (1d4) Psychic damage. Euphoria Breath (Recharge 5–6). Wisdom Saving Throw: DC 12, each creature in a 15-foot Cone. Failure: The target has the Incapacitated condition until the end

of its next turn and uses all its movement on its turn to move in a random direction. Spellcasting. The dragon casts one of the following spells, requiring no Material components and using Charisma

Ancient Deep Dragon Legacy

Monsters Fizban's Treasury of Dragons

-foot cone. Each creature in that area must make a DC 19 Wisdom saving throw. On a failed save, the creature takes 49 (9d10);{"diceNotation":"9d10", "rollType":"damage", "rollAction":"Nightmare Breath

around a creature within 30 feet of it that it can see. The target must succeed on a DC 19 Wisdom saving throw or use its reaction to make a melee weapon attack against a random creature within reach. If

Myconids

Compendium - Sources->Dungeons & Dragons->Out of the Abyss

. Caustic Spores (1/Day). The myconid releases spores in a 30-foot cone. Each creature inside the cone must succeed on a Dexterity saving throw or take 1d6 acid damage at the start of each of the

successful save, the creature can’t be infected by these spores for 24 hours. On a failed save, the creature is infected with a disease called the spores of Zuggtmoy and also gains a random form of

"The Demogorgon"

Compendium - Sources->Dungeons & Dragons->Infernal Machine Rebuild

head exhales fire in a 30-foot cone. Each creature in that area must make a DC 14 Dexterity saving throw, taking 45 (10d8) fire damage on a failed save, or half as much damage on a successful one

. Cold Breath (Recharge 5–6). 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) cold damage on a

Beholder

Compendium - Sources->Dungeons & Dragons->Monster Manual (2014)

., passive Perception 22 Languages Deep Speech, Undercommon Challenge 13 (10,000 XP) 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. Actions Bite. Melee

Adult Deep Dragon Legacy

Monsters Fizban's Treasury of Dragons

or uses its action to end it. Nightmare Breath (Recharge 5–6);{"diceNotation":"1d6", "rollType":"recharge", "rollAction":"Nightmare Breath"}. The dragon exhales a cloud of spores in a 60-foot cone

creature within 30 feet of it that it can see. The target must succeed on a DC 16 Wisdom saving throw or use its reaction to make a melee weapon attack against a random creature within reach. If no

Umber Hulk

Compendium - Sources->Dungeons & Dragons->Monster Manual

Confusing Gaze (Recharge 5–6). 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 to determine what it does on its next turn: 1–4. The target does nothing. 5–6. The target takes no action or Bonus Action and uses all its movement to move in a random direction. 7–8. The

Spaceship Trinkets

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

to determine what random trinkets the characters find in certain locations on the spaceship. None of the trinkets requires an energy cell. Spaceship Trinkets d100 Trinket 01–02 Disembodied robot

produces a 15-foot cone of bright light for up to 1 hour every 24 hours 17–18 Colorful toy ray gun with lights and sounds 19–20 Bottle of fizzy, sweet-tasting liquid 21–22 Map of an unexplored star

Staff of Power

Compendium - Sources->Dungeons & Dragons->D&D Beyond Basic Rules

following table from it, using your spell save DC. The table indicates how many charges you must expend to cast the spell. Spell Charge Cost Cone of Cold 5 Fireball (level 5 version) 5 Globe of

originating from itself. You have a 50 percent chance to instantly travel to a random plane of existence, avoiding the explosion. If you fail to avoid the effect, you take Force damage equal to 16 times the

Monsters (F)

Compendium - Sources->Dungeons & Dragons->Monster Manual

-foot Cone. Failure: The target has the Incapacitated condition and repeats the save at the end of each of its turns, ending the effect on itself on a success. After 1 minute, it succeeds

automatically. While Incapacitated, the target uses all its movement on each of its turns to move in a random direction. Spellcasting. The dragon casts one of the following spells, requiring no Material

Death Tyrant

Compendium - Sources->Dungeons & Dragons->Monster Manual (2014)

, petrified, poisoned, prone Senses darkvision 120 ft., passive Perception 22 Languages Deep Speech, Undercommon Challenge 14 (11,500 XP) 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

Staff of Power

Compendium - Sources->Dungeons & Dragons->Basic Rules (2014)

or more of its charges to cast one of the following spells from it, using your spell save DC and spell attack bonus: cone of cold (5 charges), fireball (5th-level version, 5 charges), globe of

an explosion that expands to fill a 30-foot-radius sphere centered on it. You have a 50 percent chance to instantly travel to a random plane of existence, avoiding the explosion. If you fail to avoid

Staff of Power

Compendium - Sources->Dungeons & Dragons->Dungeon Master’s Guide (2014)

. Spells. While holding this staff, you can use an action to expend 1 or more of its charges to cast one of the following spells from it, using your spell save DC and spell attack bonus: cone of cold (5

strike. The staff is destroyed and releases its remaining magic in an explosion that expands to fill a 30-foot-radius sphere centered on it. You have a 50 percent chance to instantly travel to a random

The Weeping Colossus

Compendium - Sources->Dungeons & Dragons->Princes of the Apocalypse

. Flame Gout. A bubble of gas spontaneously ignites, creating a burst of flame identical to a burning hands spell. The cone starts in the space of a random character and shoots in a random direction

intensity zone, the DC for avoiding exhaustion starts at 10. Map 5.5: The Weeping Colossus View Player Version Random Encounters For every 30 minutes the characters spend inside the Weeping

Outside Combat

Compendium - Sources->Dungeons & Dragons->Volo's Guide to Monsters

Outside Combat As described in the Monster Manual, a beholder’s use of its eye rays in combat is random, governed by die rolls instead of by choice. This rule is an abstraction, designed to keep the

easier to run. In the safety of its lair, outside the view of any would-be enemies, a beholder can use any of its eye rays whenever it wants to. Many of them serve as tools. Antimagic Cone The magic

Adult Deep Dragon

Compendium - Sources->Dungeons & Dragons->Fizban's Treasury of Dragons

spores in a 60-foot cone. Each creature in that area must make a DC 16 Wisdom saving throw. On a failed save, the creature takes 33 (6d10) psychic damage, and it is frightened of the dragon for 1 minute

succeed on a DC 16 Wisdom saving throw or use its reaction to make a melee weapon attack against a random creature within reach. If no creatures are within reach, or the target can’t take a reaction, it

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