consuming reaction guide to have rolled

Deck of Oracles

Magic Items The Book of Many Things

reaction to discard the d20 roll; the creature must use the number you rolled in place of its roll. Additionally, while holding the cards, you can cast Divination from them. Once this property is used, it can’t be used again until the next dawn.

. Roll a d20 and record the number rolled. Once in the next 8 hours, immediately after a creature within 60 feet of you makes an ability check, an attack roll, or a saving throw, you can use your

Jester's Mask

Magic Items The Book of Many Things

yourself. Once this reaction is used, it can’t be used again until the next dawn. Topsy-Turvy. When you roll a 1 on a d20, you can treat the roll as if you rolled a 20 instead. Once this property is used, it can’t be used again until the next dawn.

bonus to any spell attack rolls and spell saving throw DCs that use Charisma as the spellcasting ability. Marvelous Escape. When a creature hits you with an attack roll, you can use your reaction to

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.

Wheel of Stars

Magic Items Acquisitions Incorporated

While attuned to this device, you have a +1 bonus to Wisdom saving throws, and you can use an action to cast the dancing lights, guidance, or message cantrips. Portent of the Stars. As a reaction

when a creature you can see within 60 feet of you makes an attack roll, saving throw, or ability check, you make that creature roll a d10 and add or subtract the number rolled (your choice) from the

Daemogoth Titan

Monsters Strixhaven: A Curriculum of Chaos

;Supernatural Gifts” in the Dungeon Master’s Guide). As long as the creature has the blessing, it must expend and roll two of its Hit Dice whenever it finishes a long rest. It takes

psychic damage equal to the total rolled, and its hit point maximum is reduced by an amount equal to the psychic damage taken. This reduction lasts until the creature finishes its next long rest. The

Astromancy Archive

Magic Items Tasha’s Cauldron of Everything

in the archive. The new spell must be of the divination school. When a creature you can see within 30 feet of you makes an attack roll, an ability check, or a saving throw, you can use your reaction

to expend 1 charge and force the creature to roll a d4 and apply the number rolled as a bonus or penalty (your choice) to the original roll. You can do this after you see the roll but before its effects are applied.

Spindle of Fate

Magic Items The Book of Many Things

, once per turn when you deal damage to the doomed creature, you can roll 1d6 and add the number rolled to the damage roll. These benefits persist for 1 hour or until you target another creature with this

effect. Twist of Fate. When a creature within 60 feet of you makes a saving throw or an attack roll, you can use your reaction to expend 3 charges and alter the outcome, turning a failed saving

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

Duergar Warlord

Monsters Mordenkainen Presents: Monsters of the Multiverse

use their reaction to make one weapon attack. Invisibility (Recharge 4–6);{"diceNotation":"1d6", "rollType":"recharge", "rollAction":"Invisibility"}. The duergar magically turns invisible for up to 1

can add the number rolled to the d20 by taking 3 (1d6);{"diceNotation":"1d6", "rollType":"damage", "rollAction":"Scouring Instruction", "rollDamageType":"psychic"} psychic damage.A warlord is cunning

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

Dragon-Touched Focus

Magic Items Fizban's Treasury of Dragons

. Whenever you use a spell slot to cast a spell that deals acid, cold, fire, lightning, or poison damage, roll a d6, and you gain a bonus equal to the number rolled to one of the spell’s damage

you makes a saving throw, you can use your reaction to give that creature advantage on the saving throw. Dragon-Touched Focus (Wakened);Wakened (Very Rare). The Wakened focus has the Slumbering and

Geryon (Variant)

Monsters Mordenkainen Presents: Monsters of the Multiverse

(Recharge 5–6). As a reaction when this creature takes damage, it can roll a d10 and subtract the number rolled from the damage. Cold, Fire, PoisonBludgeoning, Piercing, and Slashing from Nonmagical Attacks that aren't Silvered

Geryon

Monsters Mordenkainen Presents: Monsters of the Multiverse

–6). As a reaction when this creature takes damage, it can roll a d10 and subtract the number rolled from the damage. Geryon (Variant);VARIANT: SOUND THE HORN Geryon can have an action that

Yeenoghu Legacy

Monsters Out of the Abyss

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

madness, which is a character flaw that lasts until cured. See the Dungeon Master’s Guide for more on madness. Madness of Yeenoghu d100 Flaw (lasts until cured) 01–20

Powered Armor

Equipment

reaction to expend 1 of the armor’s charges to deploy a defensive force field. Roll 3d10 and reduce the damage taken by the total rolled. Propulsion. As a bonus action, you can expend 1 of the

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

Hierophant Medusa

Monsters The Book of Many Things

plus 21 (6d6);{"diceNotation":"6d6", "rollType":"damage", "rollAction":"Final Blade", "rollDamageType":"force"} force damage. If the target has at least one head and the medusa rolled a 20 on the

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.

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

Deck of Wonder

Magic Items The Book of Many Things

the next 8 hours, whenever you or a creature within 60 feet of you is about to roll a d20 with advantage or disadvantage, you can use your reaction to prevent the roll from being affected by advantage

draws. Monster. This card’s monstrous visage curses you. While cursed in this way, whenever you make a saving throw, you must roll 1d4 and subtract the number rolled from the total. The curse lasts

Teeth of Dahlver-Nar

Magic Items Tasha’s Cauldron of Everything

result is rolled after it’s been used, you draw the next lowest unused tooth on the table. Sowing Teeth. To sow the tooth, you place it on the ground in an unoccupied space within your reach

, 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

Duergar Warlord Legacy

Monsters Mordenkainen’s Tome of Foes

damage while enlarged. Call to Attack. Up to three allied duergar within 120 feet of this duergar that can hear it can each use their reaction to make one weapon attack. Enlarge (Recharges after a Short

that the duergar can see makes a d20 roll, the duergar can roll a d6;{"diceNotation":"1d6","rollType":"roll","rollAction":"Scouring Instruction"} and the ally can add the number rolled to the d20 roll

Primordial Power

spells

Cold damage. In addition, it can use a Bonus Action to expend a Hit Point Die, regaining a number of Hit Points equal to the numbered rolled plus its Constitution modifier. When the target takes Fire

feet. Fire. The target has Resistance to Fire damage. In addition, when the target takes damage from a creature that is within 5 feet of it, it can take a Reaction to make one melee attack against

Mite

Monsters Mordenkainen's Fiendish Folio Volume 1

, or a saving throw, it must roll a d6 and subtract the number rolled from the d20 roll. On any turn in which it suffers the effect of the hex, the target can attack an ally as a reaction, ignoring the

Aberrant Dragonmark

feats Wayfinder's Guide to Eberron

mark, you can expend one of your Hit Dice and roll it. If you roll an even number, you gain a number of temporary hit points equal to the number rolled. If you roll an odd number, one random creature

within 30 feet of you (not including you) takes force damage equal to the number rolled. If no other creatures are in range, you take the damage. You also develop a random flaw from the Aberrant

Knight of the Crown

Feats Dragonlance: Shadow of the Dragon Queen

. If that ally can see or hear you, they can immediately make one weapon attack as a reaction. If the attack hits, the ally can roll a d8 and add the number rolled as a bonus to the attack’s damage

Adept of the White Robes

Feats Dragonlance: Shadow of the Dragon Queen

ability is the one chosen when you gained the Initiate of High Sorcery feat. Protective Ward. When you or a creature you can see within 30 feet of you takes damage, you can use your reaction to expend a

spell slot and weave protective magic around the target. Roll a number of d6s equal to the level of the spell slot expended and reduce the damage the target takes by the total rolled on those dice + your spellcasting ability modifier.

Shipwrecks

Compendium - Sources->Dungeons & Dragons->Ghosts of Saltmarsh

octopus 7 2d6 merrow 8 2d10 merfolk 9 1d6 items from Magic Item Table B in chapter 7, “Treasure,” of the Dungeon Master’s Guide 10 Treasure rolled on the Treasure Hoard: Challenge 5–10 table in chapter 7, “Treasure,” of the Dungeon Master’s Guide

Yuan-ti Pureblood Legacy

Species Volo's Guide to Monsters

or in daily life, the following principles guide the yuan-ti in all they do. Other Lives Are Cheap Yuan-ti put little value on humanoid lives, even those of their own slaves and cultists. They would

they don’t believe they have a reasonable chance of success. This reaction isn’t out of cowardice, but practicality—yuan-ti value their own lives much too highly to risk them when the

Artificer

Compendium - Sources->Dungeons & Dragons->Sage Advice Compendium

Artificer What is the timing of Flash of Genius? You use Flash of Genius immediately after the triggering d20 is rolled and before any of the effects of the roll are applied. Unless a rule tells you

otherwise, a reaction occurs immediately after its trigger. Which action is used to activate a Spell-Storing Item? Activating a Spell-Storing Item uses the Use an Object action. Can an artificer

Goliath Traits

Compendium - Sources->Dungeons & Dragons->Monsters of the Multiverse

. When you take damage, you can use your reaction to roll a d12. Add your Constitution modifier to the number rolled and reduce the damage by that total. You can use this trait a number of times equal to your proficiency bonus, and you regain all expended uses when you finish a long rest.

What's in a Hoard?

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

average monetary value of a hoard created using these guidelines is about the same as if you rolled twice on the tables in the Dungeon Master’s Guide.

treasure tables in the Dungeon Master’s Guide can help you quickly generate a hoard for a dragon of any age. (As suggested in that book, you should roll on the hoard tables at least twice for legendary

Blue Holes

Compendium - Sources->Dungeons & Dragons->Ghosts of Saltmarsh

sharks 8 1 giant shark 9 1d6 items from Magic Item Table A in chapter 7, “Treasure,” of the Dungeon Master’s Guide 10 Treasure rolled on the Treasure Hoard: Challenge 0–4 table in chapter 7, “Treasure,” of the Dungeon Master’s Guide

Hadozee Traits

Compendium - Sources->Dungeons & Dragons->Spelljammer: Adventures in Space->Astral Adventurer’s Guide

damage, you can use your reaction to roll a d6. Add your proficiency bonus to the number rolled, and reduce the damage you take by an amount equal to that total (minimum of 0 damage). You can use this

container, or pick up or set down a Tiny object. Glide. When you fall at least 10 feet above the ground, you can use your reaction to extend your skin membranes to glide horizontally a number of feet equal

Bard Subclasses

Compendium - Sources->Dungeons & Dragons->Player’s Handbook

or succeeds on an ability check or attack roll, you can take a Reaction to expend one use of your Bardic Inspiration; roll your Bardic Inspiration die, and subtract the number rolled from the

creature is hit by an attack roll, that creature can use its Reaction to roll the Bardic Inspiration die and add the number rolled to its AC against that attack, potentially causing the attack to miss

Circle of Stars

Compendium - Sources->Dungeons & Dragons->Tasha’s Cauldron of Everything

finish your next long rest, you gain access to a special reaction based on whether you rolled an even or an odd number on the die: Weal (even). Whenever a creature you can see within 30 feet of you is

about to make an attack roll, a saving throw, or an ability check, you can use your reaction to roll a d6 and add the number rolled to the total. Woe (odd). Whenever a creature you can see within 30 feet

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