causing reaction guide to have requires

Erinyes

Monsters Monster Manual

":"Necrotic"} Necrotic damage. Entangling Rope (Requires Magic Rope). Strength Saving Throw: DC 16, one creature the erinyes can see within 120 feet. Failure: 14 (4d6);{"diceNotation":"4d6", "rollType

the target, or the erinyes uses Entangling Rope again.Parry. Trigger: The erinyes is hit by a melee attack roll while holding a weapon. Response: The erinyes adds 4 to its AC against that attack, possibly causing it to miss.Fire, PoisonCold

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

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

Deck of Many Things

Magic Items Dungeon Master’s Guide

Guide), it is destroyed by some calamity beyond your control. Any documentation that proves you should own something lost to this card also disappears. Sage. At any time you choose within one year of

guard the place. While your soul is trapped in this way, your body is inert, ceases aging, and requires no food, air, or water. A Wish spell can’t return your soul to your body, but the spell reveals the location of the object that holds your soul. You draw no more cards.

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

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

Frost Giant Ice Shaper

Monsters Bigby Presents: Glory of the Giants

action and Ice Armor reaction. The object bearing the rune has AC 16; 40 hit points; and immunity to necrotic, poison, and psychic damage. The object regains all its hit points at the end of every turn

until the end of its next turn. On a successful save, the target’s speed is reduced by 10 feet until the end of its next turn. Ice Wolves (Requires Frost Rune). The giant magically summons 1d4

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

Flind

Monsters Mordenkainen Presents: Monsters of the Multiverse

"} bludgeoning damage, and the target must make a DC 16 Wisdom saving throw. On a failed save, the target must use its reaction, if available, to make one melee attack against a random creature, other than

Yeenoghu, a flind uses demonic insight to guide the gnolls toward weak prey ripe for slaughter. Unlike other leaders who might skulk behind their minions, a flind leads the charge in battle. Its flail causes wracking pain, paralysis, and disorientation in those it strikes.

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.

Orb of the Stein Rune

Magic Items Storm King's Thunder

attacks. Boots. The pair of boots is now an uncommon magic item that requires attunement. While you wear the boots, you have advantage on Strength saving throws, and you can use your reaction to avoid being knocked prone.

there with your finger. The transfer takes 8 hours of work that requires the two items to be within 5 feet of each other. At the end, the orb is destroyed, and the rune appears in silver on the chosen

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

finger. The transfer takes 8 hours of work that requires the two items to be within 5 feet of each other. At the end, the opal is destroyed, and the rune appears in red on the chosen item, which gains

Undying Councilor

Monsters Eberron: Rising from the Last War

’s choice). Flame Strike (5th-Level Spell; Requires a Spell Slot). The councilor chooses a point it can see within 60 feet of it. Each creature in a 10-foot-radius, 40-foot-high cylinder centered

starts its turn in the bright light must succeed on a DC 17 Constitution saving throw or be blinded until the end of the councilor’s next turn.Undying councilors guide and protect the people of

Rakdos

Monsters Guildmasters’ Guide to Ravnica

charmed by him must use its reaction to move up to half its speed toward the creature closest to it that it can see, provided it isn’t already within 5 feet of that creature. It then must make

spell or any other effect that requires concentration. The poisoned creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success.Fire, PoisonNecrotic; Bludgeoning, Piercing, and Slashing from Nonmagical Attacks

Wastrilith

Monsters Mordenkainen Presents: Monsters of the Multiverse

defilement, you can use the optional rule on abyssal corruption in chapter 2 of the Dungeon Master’s Guide, causing the poisoned creature to be corrupted.PoisonCold, Fire, Lightning; Bludgeoning

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

Goose Mother

Monsters Monstrous Compendium Vol. 4: Eldraine Creatures

an extra reaction that can be used only for opportunity attack;opportunity attacks. Wakeful. While the Goose Mother sleeps, at least one of its heads is awake.Multiattack. The Goose Mother makes as

", "rollAction":"Lullaby of Honks"}; Requires at Least Two Heads). The Goose Mother’s heads honk a discordant lullaby. Each creature of the Goose Mother’s choice within 10 feet of it must make a

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

): At will: detect magic, fog cloud, light, minor illusion 1/day each: dream (as an action), gaseous form, major image Thunderous Clap (Requires Cloud Rune). The giant magically summons a thundercloud

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

. Corrupting Hex (Requires Blood Rune). The fomorian targets one creature it can see within 60 feet of itself. The target must succeed on a DC 16 Charisma saving throw or take 27 (6d8);{"diceNotation":"6d8

Zuggtmoy Legacy

Monsters Out of the Abyss

Thrall. When Zuggtmoy is hit by an attack, one creature within 5 feet of Zuggtmoy that is charmed by her must use its reaction to be hit by the attack instead.Zuggtmoy can take 3 legendary actions

turn. Attack. Zuggtmoy makes one pseudopod attack. Exert Will. One creature charmed by Zuggtmoy that she can see must use its reaction to move up to its speed as she directs or to make a weapon

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

Shield of the Uven Rune

Magic Items Waterdeep: Dungeon of the Mad Mage

cold damage. Deadly Rebuke. Immediately after a creature hits you with a melee attack, you can use your reaction to deal 3d6 necrotic damage to that creature. Bane. You can cast the bane spell from

. Gift of Vengeance. You can transfer the shield’s magic to a nonmagical weapon by tracing the uven rune on the weapon with one finger. The transfer takes 8 hours of work that requires the two

Pennant of the Vind Rune

Magic Items Storm King's Thunder

another means of staying aloft. Comforting Wind. You can’t suffocate. Wind’s Grasp. As a reaction when you fall, you can cause yourself to take no damage from the fall. Once you use this

; by tracing the vind rune there with your finger. The transfer takes 8 hours of work that requires the two items to be within 5 feet of each other. At the end, the pennant is destroyed, and the rune

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

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.

Devastation Orb

Magic Items Princes of the Apocalypse

example, an air node creates a devastation orb of air. The ritual takes 1 hour to complete and requires 2,000 gp worth of special components, which are consumed. A devastation orb measures 12 inches in

Dungeon Master’s Guide. Earth Orb. When this orb detonates, it subjects the area to the effects of the earthquake spell for 1 minute (spell save DC 18). For the purpose of the spell’s

Demogorgon Legacy

Monsters Out of the Abyss

gaze requires Demogorgon to focus both heads on the target, he can’t use his Maddening Gaze legendary action until the start of his next turn. 3. Insanity Gaze. The target suffers the effect of

demon lord, roll on the Madness of Demogorgon table to determine the nature of the madness, which is a character flaw that lasts until cured. See the Dungeon Master’s Guide for more on

Graz'zt Legacy

Monsters Out of the Abyss

reaction to move up to its speed as Graz’zt directs. Sow Discord. Graz’zt casts crown of madness or dissonant whispers. Teleport. Graz’zt uses his Teleport action.The appearance of the

Master’s Guide for more on madness. Madness of Graz’zt d100 Flaw (lasts until cured) 01–20 “There is nothing in the world more important than me and my

Belashyrra

Monsters Eberron: Rising from the Last War

succeed on a DC 22 Wisdom saving throw or take 22 (4d10);{"diceNotation":"4d10","rollType":"damage","rollAction":"Implant Fear","rollDamageType":"psychic"} psychic damage and immediately use its reaction

Dungeon Master’s Guide has more information on madness. Madness of Belashyrra d6 Flaw (lasts until cured) 1 “I constantly see shapes moving in the shadows.” 2

Blackstaff

Magic Items Waterdeep: Dragon Heist

of power (see the Dungeon Master’s Guide) in addition to the following properties. Animate Walking Statues. You can expend 1 or more of the staff’s charges as an action to animate or

staff’s charges as a bonus action, causing the target to expend one spell slot of the highest spell level it can cast without casting a spell. If the target has already expended all its spell

Mighty Servant of Leuk-o

Magic Items Tasha’s Cauldron of Everything

attuned to the artifact. Attuning to the artifact requires two hours, which can be undertaken as part of a long rest, during which time you must be inside the servant, interacting with its controls

action, you can command the servant to take one of the actions in its stat block or some other action. When a creature provokes an opportunity attack from the servant, you can use your reaction to command

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

Beneficial Properties table in chapter 7 of the Dungeon Master’s Guide. Searing Radiance. The sword deals an extra 9 (2d8) radiant damage to any creature it hits, or 16 (3d10) radiant damage if you

Defensive Duelist Legacy

Feats Player’s Handbook (2014)

When you are wielding a finesse weapon with which you are proficient and another creature hits you with a melee attack, you can use your reaction to add your proficiency bonus to your AC for that attack, potentially causing the attack to miss you.

D&D Beyond

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