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Returning 35 results for 'both bad diffusing cone reaction'.
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Monsters
Mordenkainen Presents: Monsters of the Multiverse
cone. Each creature in that area must succeed on a DC 18 Constitution saving throw or be paralyzed for 1 minute. A paralyzed creature repeats the saving throw at the end of each of its turns, ending
of a conquering army on the Material Plane. These fearsome Constructs obey their summoners until they are dismissed back to Acheron, but if a summoner comes to a bad end, a cadaver collector might
Cadaver Collector
Legacy
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Monsters
Mordenkainen’s Tome of Foes
cadaver collector releases paralyzing gas in a 30-foot cone. Each creature in that area must make a successful DC 18 Constitution saving throw or be paralyzed for 1 minute. A paralyzed creature repeats
back to Acheron, but if a summoner comes to a bad end, a cadaver collector might wander the Material Plane for centuries, collecting corpses while searching for a way to return home.
Sweeping the Dead
Monsters
Waterdeep: Dungeon of the Mad Mage
, shield
2nd level (3 slots): misty step, suggestion
3rd level (3 slots): counterspell, fireball, fly
4th level (3 slots): greater invisibility, ice storm
5th level (1 slot): cone of cold
As a bonus action
or a reaction, she can shoot one of the following eye rays at one target she can see within 120 feet of her:
Fear Ray. The target must succeed on a DC 15 Wisdom saving throw or be frightened for 1
Monsters
Tyranny of Dragons
.
Fire Breath (Recharge 5–6);{"diceNotation":"1d6","rollType":"recharge","rollAction":"Fire Breath"}. The dragon head exhales fire in a 15-foot cone. Each creature in that area must make a DC 15
one.Narrow Dodge. When targeted by a melee attack, the tile chimera can take a reaction to turn its narrowest aspect toward the attacker. The attacker has disadvantage on the attack roll.A chimera is a
Monsters
Fizban's Treasury of Dragons
. For each head the dracohydra has beyond one, it gets an extra reaction that can be used only for opportunity attacks.
Wakeful. While the dracohydra sleeps, at least one of its heads is
in a 60-foot cone. Each creature in that area must make a DC 17 Dexterity saving throw. On a failed save, the creature takes 33 (6d10) damage of a type chosen by the dracohydra: acid;{"diceNotation
Monsters
Tyranny of Dragons
effects.
Magic Weapons. Tiamat’s weapon attacks are magical.
Multiple Heads. Tiamat can take one reaction per turn, rather than only one per round. She also has advantage on saving throws
Dragon Head: Poison Breath (Costs 2 Actions). Tiamat exhales poisonous gas in a 90-foot cone. Each creature in that area must make a DC 27 Constitution saving throw, taking 77 (22d6);{"diceNotation
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
action on its turn, not both. The creature also can’t take a reaction or a bonus action.
Timeline Divergence. The dragon chooses a space it can fit into within its lair. The dragon exists
Monsters
The Book of Many Things
Gaze (Recharge 4–6);{"diceNotation":"1d6", "rollType":"recharge", "rollAction":"Petrifying Gaze"}. Euryale unleashes petrifying magic from her eyes in a 30-foot cone. Each creature in that area must
lasts until the creature is freed by the Greater Restoration spell or other magic
A creature can use its reaction, if available, to shut its eyes to avoid the saving throw. If the creature does so, it has the blinded condition until the end of its next turn.
Monsters
Mordenkainen Presents: Monsters of the Multiverse
brain.
Mind Blast (Recharge 5–6);{"diceNotation":"1d6", "rollType":"recharge", "rollAction":"Mind Blast"}. The ulitharid magically emits psychic energy in a 60-foot cone. Each creature in that area
: a larger and more potent mind flayer with six tentacles. Illithids innately recognize that an ulitharid’s survival is more important than their own. An elder brain’s reaction to the rise
Monsters
Planescape: Adventures in the Multiverse
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
affected creature can move or take an action on its turn, not both. The creature also can’t take a reaction or a bonus action.
Timeline Divergence. The dragon chooses a space it can fit into
Adult Deep Dragon
Legacy
This doesn't reflect the latest rules and lore.
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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
Monsters
The Book of Many Things
(Recharge 4–6);{"diceNotation":"1d6", "rollType":"recharge", "rollAction":"Petrifying Gaze"}. The medusa unleashes petrifying magic from its eyes in a 30-foot cone. Each creature in that area must make a
until the creature is freed by the Greater Restoration spell or other magic.
A creature can use its reaction, if available, to shut its eyes to avoid the saving throw. If the creature does so, it has the blinded condition until the end of its next turn.
Ancient Deep Dragon
Legacy
This doesn't reflect the latest rules and lore.
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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
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
magic that generates a conduit something like an astral silver cord. While so connected, a willing ally can give up hit points as a reaction to fuel the armor’s abilities.
Compendium
- Sources->Dungeons & Dragons->Acquisitions Incorporated
minus the Acquisitions Incorporated fee). If the characters were only partly successful, adjust Omin’s reaction and what follows as necessary. Having since learned about the initial mistaken identity
makes the whole company look bad). Either way, read: “I’ve been told about the misunderstanding regarding your identities. I can’t say much for your relative inexperience and lack of skill. But it looks
Magic Items
Tasha’s Cauldron of Everything
, you can use your reaction to cause them to be hit instead. You can’t use this reaction again until you finish a short or long rest.
4
The Mill Road Murders (halfling canine)
3 green hag
the target if necessary.
19
Incendax’s Tooth (ruby-veined red dragon fang)
1 ancient red dragon
You gain immunity to fire damage, and as an action, you can exhale fire in a 90-foot cone
Compendium
- Sources->Dungeons & Dragons->Vecna: Eve of Ruin
a conquering army on the Material Plane. These fearsome Constructs obey their summoners until they are dismissed to Acheron, but if a summoner comes to a bad end, a cadaver collector might wander the
hit, reach 5 ft., one target. Hit: 18 (3d8 + 5) bludgeoning damage plus 16 (3d10) necrotic damage.
Paralyzing Breath (Recharge 5–6). The collector releases paralyzing gas in a 30-foot cone. Each
Compendium
- Sources->Dungeons & Dragons->Strixhaven: A Curriculum of Chaos
Charisma (Deception) check to avoid making an alarmed face, coughing loudly, or having another potentially embarrassing reaction. Bow’s End Snacks d6 Snack 1 Eel rolls with sticky rice, jalapeno
later, they learn the student was delivered to the infirmary, spent a night there with a bad headache, and recovered by the next morning. A character who succeeds on a DC 14 Intelligence (Investigation
Compendium
- Sources->Dungeons & Dragons->Fizban's Treasury of Dragons
Dragonblood Ooze What to say about the dragonblood ooze? I could comment on the bad blood between me and Tiamat. I might observe that its creator originally intended a blood sausage recipe. But
turns.
Slime Breath (Recharge 6). The ooze expels a spray of its gelatinous mass in a 30-foot cone. Each creature in that area must make a DC 14 Dexterity saving throw. On a failed save, the creature
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
Compendium
- Sources->Dungeons & Dragons->Fizban's Treasury of Dragons
exhales a cloud of spores in a 90-foot cone. Each creature in that area must make a DC 19 Wisdom saving throw. On a failed save, the creature takes 49 (9d10) psychic damage, and it is frightened of the
. 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 no creatures are within reach, or the target can’t
Compendium
- Sources->Dungeons & Dragons->The Book of Many Things
range. The target must make a Wisdom saving throw. On a failed save, the target takes 4d4 psychic damage and must immediately use its reaction to make a melee attack against another creature of your
choice that you can see. If the target can’t make this attack (for example, because there is no one within its reach or because its reaction is unavailable), the target instead has disadvantage on the next
Compendium
- Sources->Dungeons & Dragons->Fizban's Treasury of Dragons
initiative count, but it takes its turn immediately after yours. It can move and use its reaction on its own, but the only action it takes on its turn is the Dodge action, unless you take a bonus action on
Essence. Resistance. You gain resistance to the damage type chosen for the drake’s Draconic Essence. Drake’s Breath 11th-Level Drakewarden Feature As an action, you can exhale a 30-foot cone of damaging
Compendium
- Sources->Dungeons & Dragons->Fizban's Treasury of Dragons
damage dealt by the weapon increases to 2d6. As an action, you can unleash a 30-foot cone of destructive energy from the weapon. Each creature in that area must make a DC 16 Dexterity saving throw, taking
by the weapon increases to 3d6. The cone of destructive energy the weapon creates increases to a 60-foot cone, the save DC increases to 18, and the damage increases to 12d6. Dragon-Touched Focus
Compendium
- Sources->Dungeons & Dragons->Eberron: Forge of the Artificer
, Thunderwave
5 Scorching Ray, Shatter
9 Fireball, Wind Wall
13 Ice Storm, Wall of Fire
17 Cone of Cold, Wall of Force
John Thacker Artillerist Subclass
Level 3: Eldritch
Protector option below; you can direct the cannon to move up to 15 feet before or after that option: Flamethrower. The cannon blasts fire in a 15-foot Cone. Each creature in that area makes a
Compendium
- Sources->Dungeons & Dragons->Tales from the Yawning Portal->a4
, and discovered the system of old lava-tubes that riddle the cone and the underlying strata. With a little alteration, he thought, these would be perfect for his purposes. The area already had a bad
Compendium
- Sources->Dungeons & Dragons->Monsters of the Multiverse
conquering army on the Material Plane. These fearsome Constructs obey their summoners until they are dismissed back to Acheron, but if a summoner comes to a bad end, a cadaver collector might wander the
.
Paralyzing Breath (Recharge 5–6). The collector releases paralyzing gas in a 30-foot cone. Each creature in that area must make a successful DC 18 Constitution saving throw or be paralyzed for 1 minute. A
Compendium
- Sources->Dungeons & Dragons->D&D Beyond Basic Rules
, Mage Armor (included in AC), Mage Hand, Prestidigitation
2/Day Each: Fireball (level 4 version), Invisibility
1/Day Each: Cone of Cold, Fly
Bonus Actions
Misty Step (3/Day). The mage casts Misty
, Detect Thoughts, Disguise Self, Invisibility, Light, Mage Armor (included in AC), Mage Hand, Prestidigitation
2/Day Each: Fly, Lightning Bolt (level 7 version)
1/Day Each: Cone of Cold (level 9
Compendium
- Sources->Dungeons & Dragons->Mordenkainen's Tome of Foes
evil warlord to bolster the ranks of a conquering army. These fearsome constructs obey their summoners until being dismissed back to Acheron, but if a summoner comes to a bad end, a cadaver collector
paralyzing gas in a 30-foot cone. Each creature in that area must make a successful DC 18 Constitution saving throw or be paralyzed for 1 minute. A paralyzed creature repeats the saving throw at the end of each of its turns, ending the effect on itself with a success.
Compendium
- Sources->Dungeons & Dragons->Acquisitions Incorporated
reaction, you can target one creature you can see that is about to attempt an ability check, attack roll, or saving throw, either granting advantage or imposing disadvantage on the roll. The bead crumbles
is about to make an ability check, attack roll, or saving throw with disadvantage. When such a roll is made, you can use a reaction to grant a d10 to a different creature you can see. That creature
Compendium
- Sources->Dungeons & Dragons->Tasha’s Cauldron of Everything
Peace Domain Have these peaceful clerics even considered that they’re subverting a most holy system, one where bad decisions coincide with the teaching power of pain?
Tasha
The balm of peace
to take damage, a second bonded creature within 30 feet of the first can use its reaction to teleport to an unoccupied space within 5 feet of the first creature. The second creature then takes all the
Compendium
- Sources->Dungeons & Dragons->Planescape: Adventures in the Multiverse->Morte’s Planar Parade
the next round, the affected creature can move or take an action on its turn, not both. The creature also can’t take a reaction or a bonus action. Timeline Divergence. The dragon chooses a space it can
shimmering light in a 30-foot cone. Nonmagical objects and vegetation in that area that aren’t being worn or carried crumble to dust. Each creature in that area must make a DC 17 Constitution saving
Compendium
- Sources->Dungeons & Dragons->Xanathar's Guide to Everything
decision, follow through with it knowing your path is just. Redemption. So you feel bad about having done something, and then you have to do something to feel better? Why don’t you just kill and eat
rebuke those who use violence. Immediately after an attacker within 30 feet of you deals damage with an attack against a creature other than you, you can use your reaction to force the attacker to make a
Compendium
- Sources->Dungeons & Dragons->Monstrous Compendium Volume Two
cone originating from the inventor. Each creature in that area must make a DC 14 Constitution saving throw, taking 10 (3d6) thunder damage on a failed save or half as much damage on a successful one
.
Reaction
Flash Powder. If the inventor is damaged by a creature it can see within 15 feet of itself, the inventor retaliates by flinging brilliantly explosive powder at the creature. The creature
Compendium
- Sources->Dungeons & Dragons->Volo's Guide to Monsters
repurposing cursed or dangerous items as elements of traps or obstacles in its lair, especially if such an item emits an ongoing effect that it can suppress as needed with its antimagic cone. A trophy
is a treasure that a beholder cherishes as evidence of its power, or serves as a remembrance of victory over its enemies, or evokes another sort of positive reaction from it. The preserved corpse of a






