causing reaction glowing to have required

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

Delayed Blast Fireball

Spells Player’s Handbook

A beam of yellow light flashes from you, then condenses at a chosen point within range as a glowing bead for the duration. When the spell ends, the bead explodes, and each creature in a 20-foot

spell’s base damage is 12d6, and the damage increases by 1d6 whenever your turn ends and the spell hasn’t ended. If a creature touches the glowing bead before the spell ends, that creature

Dominate Beast

Spells Player’s Handbook

existence. On your turn, you can use this link to issue commands to the target (no action required), such as “Attack that creature,” “Move over there,” or “Fetch that object

command the target to take a Reaction but must take your own Reaction to do so. Using a Higher-Level Spell Slot. Your Concentration can last longer with a spell slot of level 5 (up to 10 minutes), 6 (up to 1 hour), or 7+ (up to 8 hours).

Dominate Person

Spells Player’s Handbook

existence. On your turn, you can use this link to issue commands to the target (no action required), such as “Attack that creature,” “Move over there,” or “Fetch that object

can command the target to take a Reaction but must take your own Reaction to do so. Using a Higher-Level Spell Slot. Your Concentration can last longer with a spell slot of level 6 (up to 10 minutes), 7 (up to 1 hour), or 8+ (up to 8 hours).

Staff of the Python

Magic Items Dungeon Master’s Guide

As a Magic action, you can throw this staff so that it lands in an unoccupied space within 10 feet of you, causing the staff to become a Giant Constrictor Snake in that space. The snake is under your

control and shares your Initiative count, taking its turn immediately after yours. On your turn, you can mentally command the snake (no action required) if it is within 60 feet of you and you don

Dominate Monster

Spells Player’s Handbook

existence. On your turn, you can use this link to issue commands to the target (no action required), such as “Attack that creature,” “Move over there,” or “Fetch that object

can command the target to take a Reaction but must take your own Reaction to do so. Using a Higher-Level Spell Slot. Your Concentration can last longer with a level 9 spell slot (up to 8 hours).

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

Blackrazor

Magic Items Dungeon Master’s Guide

effect at the start of your turn. The spell lasts for 1 minute (no Concentration required) or until Blackrazor decides to end it, which it can do at the end of any of your turns. Sentience

Blackrazor. Blackrazor can be destroyed by crushing it in the great gears of Mechanus. Primus, the creator of the modrons, also knows a series of musical tones that Blackrazor can’t stand to hear, causing the sword to shatter.

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

Leprechaun

Monsters Quests from the Infinite Staircase

magically gifts the target a measure of luck. The creature gains the leprechaun’s Astonishing Luck reaction. The creature can use the reaction three times, after which this gift goes away. The

leprechaun can revoke this gift from a creature at any time (no action required). A creature can benefit from only one leprechaun’s Gift of Luck at a time. Spellcasting. The leprechaun casts one of

Hither-Thither Staff

Magic Items Legendary Magic Items

one or both portals, subject to the same limitation. The surface on which a portal appears must be big enough to accommodate it. Each portal is a two-dimensional, glowing oval ring, and together they

suppress one portal, causing it to disappear until you relocate it (see above), during which time the remaining portal can’t be used. The portals otherwise last for 24 hours.

Shield of the Blazing Dreadnought

Magic Items Bigby Presents: Glory of the Giants

Modeled after the formidable spiked tower shields wielded by some fire giants, this iron shield emanates a constant warmth. You can use a bonus action to activate the shield, causing glowing lava to

Dabus

Monsters Planescape: Adventures in the Multiverse

(no action required).Multiattack. The dabus makes two Flying Brick attacks. Flying Brick. Ranged Spell Attack: +5;{"diceNotation":"1d20+5", "rollType":"spell", "rollAction":"Flying Brick"} to hit

but also to combat individuals who disrupt the city’s operations or violate the Lady’s edicts, hurling bricks at troublemakers and subduing them by causing the streets to sprout grasping

Quandrix Professor of Substance

Monsters Strixhaven: A Curriculum of Chaos

Translation (2/Day). When the professor is hit by an attack roll, it can increase its AC by 3 against that attack, potentially causing it to miss. The professor can then teleport, along with any equipment

professor magically alters its physical form until it uses this bonus action again, until it is incapacitated or dies, or until it dismisses the effect (no action required). Choose one of the following

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.

Undercity Medusa

Monsters Guildmasters’ Guide to Ravnica

cables, and its hands are scaly claws. The gaze of a medusa's glowing eyes causes living tissue to petrify. The transformation is rapid, leaving the victim as a stone statue, usually frozen in a position

dreams of one day reclaiming control of the Golgari Swarm, or at least causing pain to its current guildmaster, Jarad Vod Savo (whose own sister displaced the medusas from their position).

Ulitharid

Monsters Mordenkainen Presents: Monsters of the Multiverse

ulitharid is more than 5 miles away from the elder brain, it can end the psychic link at any time (no action required).Tentacles. Melee Weapon Attack: +9;{"diceNotation":"1d20+9", "rollType":"to hit

: 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

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

Chronolometer

Magic Items Acquisitions Incorporated

that language while attuned to the device. Time Bandit. At the start of your turn, roll a d6 (no action required). On a 1–3, you slow down time, gaining an additional action on your turn and

reroll the check and take either result. Once you use this feature of the chronolometer, it cannot be used again until the next dawn. Fate Swap. As a reaction when a creature you can see within 30 feet

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

Warforged Colossus

Monsters Eberron: Rising from the Last War

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

Glowing Chasm in the northern part of the Mournland, with one of its arms torn off. “Artorok” (Colossus WX-73) sits at the bottom of Lake Cyre amid the scaffolding of a sunken House

Elder Brain

Monsters Mordenkainen Presents: Monsters of the Multiverse

Link. The elder brain targets one creature within 120 feet of it with which it has a psychic link. The elder brain ends the link, causing the creature to have disadvantage on all ability checks

heart of a mind flayer colony. The brain dwells in a dimly glowing brine pool filled with brackish water infused with its vital fluids and psionic energy. An elder brain’s ambitions are always

Githzerai Anarch

Monsters Mordenkainen Presents: Monsters of the Multiverse

: Form Substance. In Limbo, the anarch can spend 10 minutes stabilizing a 5-mile area centered on it, causing the unformed substance to take whatever inanimate form the anarch chooses. During that

anarch remains within 1 mile of it (no action required). If the anarch dies, these effects end after 1d6;{"diceNotation":"1d6","rollType":"roll"} rounds. All formed substance becomes a chaotic churn

Demogorgon

Monsters Mordenkainen Presents: Monsters of the Multiverse

its action, reaction, and movement. Spellcasting. Demogorgon casts one of the following spells, requiring no material components and using Charisma as the spellcasting ability (spell save DC 23

, Demogorgon can move the illusory duplicate a distance equal to his walking speed (no action required). The first time a creature or an object interacts physically with Demogorgon (for example, by

Khrusor, Spear of Heliod

Magic Items Mythic Odysseys of Theros

this spear, the target takes an extra 2d8 radiant damage. Blessing of the Sun. If you are a worshiper of Heliod, you gain all the following benefits for which you have the required piety: Piety 3

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

Nafas

Monsters Quests from the Infinite Staircase

palace within the Infinite Staircase where winds and wishes converge (see chapter 1 of Quests from the Infinite Staircase). Windcatchers rise above its spacious chambers and softly glowing domes, and

dust lasts until Nafas disperses it (no action required) or uses this lair action again, and it can’t be dispersed by wind. Regional Effects The region containing Nafas’s lair is warped

Mighty Servant of Leuk-o

Magic Items Tasha’s Cauldron of Everything

(for either attuned creature), you can command it in the following ways: Open or close the hatch (no action required, once per turn) Move the servant up to its speed (no action required) As an

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

Druid Grove

Spells Xanathar's Guide to Everything

this effect, the weeds and vines feel soft and reshape themselves to serve as temporary seats or beds. Grove Guardians. You can animate up to four trees in the area, causing them to uproot themselves

required by you) that you issue while in the area. If you don’t give them commands and no intruders are present, the grove guardians do nothing. The grove guardians can’t leave the warded

Belashyrra

Monsters Eberron: Rising from the Last War

minute or until the target takes damage. Belashyrra can issue telepathic commands to the charmed creature (no action required), which it does its best to obey. 3. Mind-Weakening Ray. The target must

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

Salaisa Malthulas

monsters

":"damage", "rollAction":"Edge of Dissolution Longsword", "rollDamageType":"Acid"} Acid damage. Glowing acid lingers on the target until the start of Salaisa’s next turn. While the acid lasts, the

another creature takes an action to shake it awake. Order Attack. Salaisa shouts or signs an order. One drow ally within 30 feet of Salaisa that can see or hear her can use a Reaction to make an

Delayed Blast Fireball Legacy

Spells Basic Rules (2014)

A beam of yellow light flashes from your pointing finger, then condenses to linger at a chosen point within range as a glowing bead for the duration. When the spell ends, either because your

. If at the end of your turn the bead has not yet detonated, the damage increases by 1d6. If the glowing bead is touched before the interval has expired, the creature touching it must make a

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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