causing radius grant to have reaction

Nightmare

Monsters Monster Manual

Confer Fire Resistance. The nightmare can grant Resistance to Fire damage to a rider while it is on the nightmare. Illumination. The nightmare sheds Bright Light in a 10-foot radius and Dim Light

Marilith

Monsters Monster Manual

Resistance. The marilith has Advantage on saving throws against spells and other magical effects. Reactive. The marilith can take one Reaction on every turn of combat.Multiattack. The marilith makes six Pact

ends.Parry. Trigger: The marilith is hit by a melee attack roll while holding a weapon. Response: The marilith adds 5 to its AC against that attack, possibly causing it to miss.PoisonCold, Fire

Warrior Commander

Monsters Monster Manual

effects: Sap. The target has Disadvantage on its next attack roll before the start of the warrior’s next turn. Maneuver. One ally who can see or hear the warrior can take a Reaction to move up

until the end of the target’s next turn.Counterattack. Trigger: The warrior is hit by an attack roll. Response: The warrior adds 4 to its AC against that attack, possibly causing it to miss. On a

Rope of Entanglement

Magic Items Dungeon Master’s Guide

. The target must succeed on a DC 15 Dexterity saving throw or have the Restrained condition. You can release the target by letting go of your end of the rope (causing the rope to coil up in the target

’s space) or by using a Bonus Action to repeat the command (causing the rope to coil up in your hand). A target Restrained by the rope can take an action to make its choice of a DC 15 Strength

Death Knight Aspirant

Monsters Monster Manual

. Hellfire Orb (Recharge 5–6);{"diceNotation":"1d6", "rollType":"recharge", "rollAction":"Hellfire Orb"}. Dexterity Saving Throw: DC 15, each creature in a 20-foot-radius Sphere centered on a point

holding a weapon. Response: The aspirant adds 4 to its AC against that attack, possibly causing it to miss.Necrotic, Poison

Daylight

Spells Player’s Handbook

For the duration, sunlight spreads from a point within range and fills a 60-foot-radius Sphere. The sunlight’s area is Bright Light and sheds Dim Light for an additional 60 feet. Alternatively

, you cast the spell on an object that isn’t being worn or carried, causing the sunlight to fill a 60-foot Emanation originating from that object. Covering that object with something opaque

Fount of Moonlight

Spells Player’s Handbook

A cool light wreathes your body for the duration, emitting Bright Light in a 20-foot radius and Dim Light for an additional 20 feet. Until the spell ends, you have Resistance to Radiant damage, and

your melee attacks deal an extra 2d6 Radiant damage on a hit. In addition, immediately after you take damage from a creature you can see within 60 feet of yourself, you can take a Reaction to force

Quarterstaff of the Acrobat

Magic Items Dungeon Master’s Guide

an attack while holding the weapon, you can take a Reaction to twirl the weapon around you, gaining a +5 bonus to your Armor Class against the triggering attack, potentially causing the attack to miss

Death Knight

Monsters Monster Manual

":"Necrotic"} Necrotic damage. Hellfire Orb (Recharge 5–6);{"diceNotation":"1d6", "rollType":"recharge", "rollAction":"Hellfire Orb"}. Dexterity Saving Throw: DC 18, each creature in a 20-foot-radius Sphere

MagicParry. Trigger: The death knight is hit by a melee attack roll while holding a weapon. Response: The death knight adds 6 to its AC against that attack, possibly causing it to miss.Legendary Action

Delayed Blast Fireball

Spells Player’s Handbook

-radius Sphere centered on that point makes a Dexterity saving throw. A creature takes Fire damage equal to the total accumulated damage on a failed save or half as much damage on a successful one. The

makes a Dexterity saving throw. On a failed save, the spell ends, causing the bead to explode. On a successful save, the creature can throw the bead up to 40 feet. If the thrown bead enters a creature

Lyre of Building

Magic Items Tasha’s Cauldron of Everything

While holding this lyre, you can cast mending as an action. You can also play the lyre as a reaction when an object or a structure you can see within 300 feet of you takes damage, causing it to be

Sanctum Amulet

Magic Items Bigby Presents: Glory of the Giants

taking damage, you can use your reaction to invoke the item’s rune, causing the pendant to flash with pale light. The creature then instead drops to 1 hit point. Once the rune has been invoked, it can’t be invoked again until the next dawn.

Fiendish Auger

Monsters Phandelver and Below: The Shattered Obelisk

auger is created when a wicked spirit enters an excavation drill, causing the hulking corkscrew bore to glow brightly with hellfire. Fueled by the fervent aggression of the evil spirit within, fiendish

-foot-radius sphere centered on itself. This heat spreads around corners. Each creature in this area must make a DC 17 Constitution saving throw, taking 13 (3d8);{"diceNotation":"3d8", "rollType":"damage

Graz'zt

Monsters Mordenkainen Presents: Monsters of the Multiverse

one Wave of Sorrow attack. Dance, My Puppet! One creature charmed by Graz’zt that Graz’zt can see must use its reaction to move up to its speed as Graz’zt directs.The appearance of

can gain the Master of Pleasures trait. Joy from Pain. Whenever this creature suffers a critical hit, it can make one melee weapon attack as a reaction. Master of Pleasures. As a reaction when this

Occultant Abacus

Magic Items Acquisitions Incorporated

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 can add the d10 to any ability check, attack roll, or saving throw it

someone in your franchise within the last 24 hours, then grant the character who slew it a d10. Once within the next hour, that character can add the d10 to an attack roll, ability check, or saving

Yeenoghu Legacy

Monsters Out of the Abyss

atrocities in his name. Yeenoghu takes pleasure in causing fear before death, and he sows sorrow and despair through destroying beloved things. He doesn’t parlay; to meet him is to do battle with him

condition. Each gnoll or hyena that Yeenoghu can see can use its reaction to move up to its speed. Until the next initiative count 20, all gnoll;gnolls and hyena;hyenas within the lair are enraged

Yeenoghu

Monsters Mordenkainen Presents: Monsters of the Multiverse

them into flind;flinds. Yeenoghu takes pleasure in causing fear before death, and he sows sorrow and despair through destroying beloved things. He doesn’t parlay; to meet him is to do battle with

count 20, all gnoll;gnolls and hyena;hyenas within the lair are enraged, causing them to have advantage on melee weapon attack rolls and causing attack rolls to have advantage against them. Iron Spike

Jiangshi

Monsters Van Richten’s Guide to Ravenloft

Jiangshi Weaknesses. The jiangshi has the following flaws: Fear of Its Own Reflection. If the jiangshi sees its own reflection, it immediately uses its reaction, if available, to move as far away

afflicts the limbs of jiangshi, causing them to hold their arms rigidly and to walk with a stiff gait. This, along with their flight, lead many to call them hopping vampires. By day, jiangshi lurk

Opal of the Ild Rune

Magic Items Storm King's Thunder

This triangular fire opal measures about three inches on each side and is half an inch thick. The ild (fire) rune shimmers within its core, causing it to be slightly warm to the touch. The opal has

much fire to extinguish in that radius. Gift of Flame. You can transfer the opal’s magic to a nonmagical item — a weapon or a suit of armor — by tracing the ild rune there with your

Zuggtmoy Legacy

Monsters Out of the Abyss

":"Pseudopod","rollDamageType":"poison"} poison damage. Infestation Spores (3/Day). Zuggtmoy releases spores that burst out in a cloud that fills a 20-foot-radius sphere centered on her, and it

","rollType":"recharge","rollAction":"Mind Control Spores"}. Zuggtmoy releases spores that burst out in a cloud that fills a 20-foot-radius sphere centered on her, and it lingers for 1 minute. Humanoids and

Hill Giant Avalancher

Monsters Bigby Presents: Glory of the Giants

Hill Rebuff reaction. The object bearing the rune has AC 15; 20 hit points; and immunity to necrotic, poison, and psychic damage. The object regains all its hit points at the end of every turn, but

Stone Avalanche (Requires Hill Rune). The giant conjures a hail of rocks in a 20-foot-radius, 40-foot-high cylinder centered on a point on the ground it can see within 120 feet of itself. Each creature

Sword of Zariel

Magic Items Baldur’s Gate: Descent into Avernus

have disadvantage on attack rolls made within the weapon’s radius of bright light. As a bonus action, you can intensify the sword’s light, causing it to shed bright light in a 15-foot

radiant damage. Divine Presence. Your Charisma score becomes 20, unless it is already 20 or higher. Feathered Wings. You sprout a beautiful pair of feathered wings that grant you a flying speed of 90

Goblin Psi Commander

Monsters Phandelver and Below: The Shattered Obelisk

", "rollAction":"Synaptic Rend"}. The goblin unleashes a 30-foot-radius sphere of psychic energy, centered on a point the goblin can see within 60 feet of itself. Each creature in that area must make a DC 13

triggering attack roll, potentially causing it to miss.Goblin psi commanders are among the few psionic goblins who manage to fully control the power within themselves. Awakened to the total breadth

Draconic Shard

Monsters Fizban's Treasury of Dragons

wears or carries the inhabited object, the shard can grant the creature the following benefits: Each of the creature’s attacks deals an extra 1d8;{"diceNotation":"1d8", "rollType":"roll

shard unleashes a pulse of psychic power. Each creature of the shard’s choice in a 60-foot-radius sphere centered on it must make a DC 20 Intelligence saving throw. On a failed save, the

Zaratan

Monsters Mordenkainen Presents: Monsters of the Multiverse

-radius circle centered on itself. That area becomes difficult terrain for 1 minute. Each creature on the ground that is concentrating must succeed on a DC 25 Constitution saving throw or the creature

successful DC 20 Strength (Athletics) check as an action to escape. Another creature within 5 feet of the buried creature can use its action to clear rubble and grant advantage on the check. If three

Fomorian Warlock of the Dark

Monsters Bigby Presents: Glory of the Giants

action and Poisoning Rebuke reaction. The object bearing the blood rune has AC 15; 30 hit points; and immunity to necrotic, poison, and psychic damage. The object regains all its hit points at the end

if it tries to cast a spell, it must first succeed on a DC 16 Intelligence check or the spell fails and is wasted. Eldritch Burst. Magical energy explodes in a 20-foot-radius sphere centered on a

Ancient Dragon Turtle

Monsters Fizban's Treasury of Dragons

underwater doesn't grant resistance against this damage.The dragon turtle 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

","rollType":"damage","rollAction":"Boiling Aura","rollDamageType":"fire"} fire damage. Being underwater doesn't grant resistance against this damage.Dragon turtles are mighty creatures whose inherent

Ulitharid

Monsters Mordenkainen Presents: Monsters of the Multiverse

: 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

are then planted in the ulitharid’s corpse, causing it to dissolve into ichor. This psionically potent slime helps to fuel the transformation of the area into a brine pool for the embryonic elder brain.

Warforged Colossus

Monsters Eberron: Rising from the Last War

. Any creature in a 20-foot-radius, 20-foot-high cylinder centered on this point must succeed on a DC 26 Dexterity saving throw or take 33 (6d10);{"diceNotation":"6d10","rollType":"damage","rollAction

Mourning. The arcane cataclysm that engulfed Cyre destroyed most of the warforged colossi, causing them to collapse into lifeless heaps. Colossal Survivors. Some warforged colossi survived the Day of

Khrusor, Spear of Heliod

Magic Items Mythic Odysseys of Theros

“Artifacts” in chapter 7 of the Dungeon Master’s Guide for details on randomly determined properties. Luminous. The spear sheds bright light in a 30-foot radius and dim light for an

additional 30 feet. The light is sunlight. Sun’s Retaliation. When you take damage from a creature within 5 feet of you, you can use your reaction to make a melee attack with the spear against that

Zuggtmoy

Monsters Mordenkainen Presents: Monsters of the Multiverse

. One creature charmed by Zuggtmoy that she can see must use its reaction, if available, to move up to its speed as she directs or to make one weapon attack against a target that she designates.The Demon

, LightningInfestation Spores (3/Day). Zuggtmoy releases spores that burst out in a cloud that fills a 20-foot-radius sphere centered on her, and it lingers for 1 minute. Any creature in the cloud when it

Nintra Siotta

Monsters Candlekeep Mysteries

feet of her and creates a 20-foot-radius sphere of swirling glass shards centered on that point. Each creature in the sphere must make a DC 20 Dexterity saving throw, taking 28 (8d6);{"diceNotation":"8d6

effect two rounds in a row: Nintra targets one pane of shadow glass in her lair, causing it to explode into shards. Each creature within 20 feet of the exploding pane must make a DC 18 Dexterity

Prisoner 13

Monsters Keys from the Golden Vault

tattoo across her back, filling a 20-foot-radius sphere centered on her. Each other creature in that area must make a DC 15 Dexterity saving throw. On a failed save, the creature takes 13 (3d8

knocked prone. River Tattoo. Prisoner 13 magically ends any effects causing the grappled or restrained conditions on herself. If she is bound with nonmagical restraints, she slips out of them.Readiness

Cloud Giant Destiny Gambler

Monsters Bigby Presents: Glory of the Giants

Thunderous Clap action and Negate Spell reaction. The mask bearing the cloud rune has AC 15; 45 hit points; and immunity to necrotic, poison, and psychic damage. The mask regains all its hit points at

that fills a 30-foot-radius sphere centered on a point the giant can see within 60 feet of itself. The cloud spreads around corners. Each creature in that area must make a DC 20 Constitution saving

Drow Matron Mother

Monsters Mordenkainen Presents: Monsters of the Multiverse

. Divine Flame (2/Day). A 10-foot-radius, 40-foot-high column of divine fire sprouts in an area up to 120 feet away from the drow. Each creature in the column must make a DC 20 Dexterity saving throw

allied demon within 30 feet of the drow uses its reaction to make one attack against a target of the drow’s choice that she can see. Demon Staff. The drow makes one Demon Staff attack. Cast a

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