being before device creating reaction

Narycrash

Equipment

This backpack-sized device holds a balloon-based parachute. If you fall while wearing this device, you can use your reaction to deploy the parachute. Once deployed, the parachute rapidly inflates

Chronolometer

Magic Items Acquisitions Incorporated

While attuned to this device, you have a +1 bonus to Intelligence saving throws. The first time you attune to the chronolometer, you choose one language you don’t know. You subsequently know

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

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

Endelyn Moongrave

Monsters The Wild Beyond the Witchlight

deal. Endelyn’s obsession with tragedy and hopelessness extends to her own life; she has foreseen her own demise during a solar eclipse. In the depths of her castle, a lightning-powered device

visit another to plot against the third sister, creating a vicious circle in which Bavlorna and Endelyn plot against Skabatha, Endelyn and Skabatha conspire against Bavlorna, and Skabatha and Bavlorna

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

have disadvantage on Dexterity (Stealth) checks made to hide. Regional Effects The region containing Graz’zt’s lair is warped by his magic, creating one or more of the following effects

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

jiangshi’s choice). It reverts to its true form if it dies.When a soul becomes trapped within its corpse, its bitterness can reanimate its body, creating a jiangshi. These vengeful dead stalk

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

Reborn

Species Van Richten’s Guide to Ravenloft

itchy straw stuffing inside you. Reborn in the Domains of Dread When creating a reborn, consult with your DM to see if it’s appropriate to tie your origins to one of the following Domains

perfectly preserved remains. Lamordia. You awoke amid the bizarre experiments of an amoral scientist. They consider you their finest creation or have a task for you to fulfill. Mordent. You emerged from the mysterious device known as the Apparatus, your body a lifeless shell and your past a mystery.

Mighty Servant of Leuk-o

Magic Items Tasha’s Cauldron of Everything

conjecture than fact, often referring to otherworldly beings, the mysterious Barrier Peaks in Oerth, and the supposedly related device known as the Machine of Lum the Mad. The best details on the device

’s origins and operation can be found in the Mind of Metal, a tome of artificer’s secrets that connects the device to the traditions of the lost Olman people, and which was written by Lum the

Adult Deep Dragon Legacy

Monsters Fizban's Treasury of Dragons

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

creatures are within reach, or the target can’t take a reaction, it takes 5 (1d10);{"diceNotation":"1d10", "rollType":"damage", "rollAction":"Commanding Spores", "rollDamageType":"psychic"} psychic

Adult Time Dragon

Monsters Planescape: Adventures in the Multiverse

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

the dragon’s magic, creating one or more of the following effects: Time Dilations. Time fluctuates within 3 miles of the lair. Short rests taken within this area take 10 minutes or 2 hours

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

’s lair is warped by his magic, creating one or more of the following effects: Beguiling Realm. Within 6 miles of the lair, all Charisma (Persuasion) and Charisma (Performance) checks have

Ancient Deep Dragon Legacy

Monsters Fizban's Treasury of Dragons

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

no creatures are within reach, or the target can’t take a reaction, it takes 11 (2d10);{"diceNotation":"2d10", "rollType":"damage", "rollAction":"Commanding Spores", "rollDamageType":"psychic

Ancient Time Dragon

Monsters Planescape: Adventures in the Multiverse

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

dragon’s lair is altered by the dragon’s magic, creating one or more of the following effects: Time Dilations. Time fluctuates within 3 miles of the lair. Short rests taken within this

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

herself. Regional Effects The region containing Zuggtmoy’s lair is warped by her magic, creating one or more of the following effects: Corrupted Nature. Within 6 miles of the lair, all Wisdom

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

magic, creating one or more of the following effects: Within 1 mile of the lair, large iron spikes grow out of the ground and stone surfaces. Yeenoghu impales the bodies of the slain on these spikes

Baphomet

Monsters Mordenkainen Presents: Monsters of the Multiverse

for 1 minute or until Baphomet takes this lair action again. Regional Effects The region containing Baphomet’s lair is warped by his magic, creating one or more of the following effects

after a Short or Long Rest). As an action, this creature allows each ally within 30 feet of it that has the Unerring Tracker trait to make one weapon attack as a reaction against the target of that

Geryon (Variant)

Monsters Mordenkainen Presents: Monsters of the Multiverse

Effects The region containing Geryon’s lair is warped by his magic, creating one or more of the following effects: Chilling Wind. Freezing strong winds howl around the area within 1 mile of

(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

Yeenoghu

Monsters Mordenkainen Presents: Monsters of the Multiverse

or hyena that Yeenoghu can see can use its reaction to move up to its speed. Regional Effects The region containing Yeenoghu’s lair is warped by his magic, creating one or more of the

Narycrash

Compendium - Sources->Dungeons & Dragons->Dragonlance: Shadow of the Dragon Queen

Narycrash This backpack-sized device holds a balloon-based parachute. If you fall while wearing this device, you can use your reaction to deploy the parachute. Once deployed, the parachute rapidly

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

(Stealth) checks made to hide. Regional Effects The region containing Graz’zt’s lair is warped by his magic, creating one or more of the following effects: Flat surfaces within 1 mile of

Geryon

Monsters Mordenkainen Presents: Monsters of the Multiverse

The region containing Geryon’s lair is warped by his magic, creating one or more of the following effects: Chilling Wind. Freezing strong winds howl around the area within 1 mile of the lair

–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

Rogue

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

the fighter’s turn, and if the attack qualifies, it can use Sneak Attack. Both of those options rely on the use of your reaction, so you could do only one of them in a round. Because you get only one

reaction per round, you’re unlikely to use Sneak Attack more than twice in a round: once with your action and once with your reaction. For Sneak Attack, what if another enemy of your target was 10

Elise and the Unbreakable Heart

Compendium - Sources->Dungeons & Dragons->Van Richten’s Guide to Ravenloft

Elise and the Unbreakable Heart Above all else, Dr. Mordenheim’s objectives are finding Elise and recovering or re-creating the Unbreakable Heart. Elise. Dr. Mordenheim’s supposed beloved and

of Fire traits. She has immunity to cold damage. Elise’s heart has been replaced with the Unbreakable Heart. If this device is removed, Elise dies, even if it is replaced with another heart. Elise is

Eldritch Machines

Compendium - Sources->Dungeons & Dragons->Wayfinder's Guide to Eberron

the sewers below Sharn, a mad genius puts the final touches on a device that will turn the people of the city into undead monstrosities. All of these are eldritch machines. They are wondrous locations

: magic items of immense power, but so large that they cannot be moved. Eldritch machines always require rare components but creating an eldritch machine could require one or more planes to be

The Maze Engine

Compendium - Sources->Dungeons & Dragons->Out of the Abyss

The Maze Engine Deep within the Labyrinth lies the Maze Engine — a mechanical, magically powered device capable of altering reality. Modrons refer to the device as an Orderer because it was designed

chapter 2, “Creating a Multiverse,” in the Dungeon Master’s Guide). It’s a 20-foot-diameter sphere built of 1-foot-wide bands of magically hardened and shaped bronze, engraved with arcane symbols. Gaps

Hierophant Medusa

Monsters The Book of Many Things

altered by the medusa’s presence, creating one or more of the following effects: Faces in Stone. Stone within 3 miles of the lair takes on subtle shapes that suggest people, animals, and other

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.

Chronolometer

Compendium - Sources->Dungeons & Dragons->Acquisitions Incorporated

Chronolometer Wondrous item, very rare (requires attunement) While attuned to this device, you have a +1 bonus to Intelligence saving throws. The first time you attune to the chronolometer, you

choose one language you don’t know. You subsequently know 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

Reborn in the Domains of Dread

Compendium - Sources->Dungeons & Dragons->Van Richten’s Guide to Ravenloft

Reborn in the Domains of Dread When creating a reborn, consult with your DM to see if it’s appropriate to tie your origins to one of the following Domains of Dread (detailed in chapter 3): Har’Akir

of an amoral scientist. They consider you their finest creation or have a task for you to fulfill. Mordent. You emerged from the mysterious device known as the Apparatus, your body a lifeless shell

Hide in Plain Sight

Compendium - Sources->Dungeons & Dragons->Player's Handbook (2014)

Hide in Plain Sight Starting at 10th level, you can spend 1 minute creating camouflage for yourself. You must have access to fresh mud, dirt, plants, soot, and other naturally occurring materials

as you are. You gain a +10 bonus to Dexterity (Stealth) checks as long as you remain there without moving or taking actions. Once you move or take an action or a reaction, you must camouflage yourself again to gain this benefit.

Hide in Plain Sight

Compendium - Sources->Dungeons & Dragons->Basic Rules (2014)

Hide in Plain Sight Starting at 10th level, you can spend 1 minute creating camouflage for yourself. You must have access to fresh mud, dirt, plants, soot, and other naturally occurring materials

as you are. You gain a +10 bonus to Dexterity (Stealth) checks as long as you remain there without moving or taking actions. Once you move or take an action or a reaction, you must camouflage yourself again to gain this benefit.

Duergar Hammerer

Compendium - Sources->Dungeons & Dragons->Mordenkainen's Tome of Foes

duergar’s pain into energy that powers the device, which is typically used to dig tunnels and repel invaders. Duergar Hammerer Medium construct, lawful evil Armor Class 17 (natural armor) Hit Points 33

the hammerer can respond by using its Multiattack with its reaction. Siege Monster. The hammerer deals double damage to objects and structures. Actions Multiattack. The hammerer makes two

Creating a Campaign

Compendium - Sources->Dungeons & Dragons->Tales from the Yawning Portal

Creating a Campaign While these adventures were never meant to be combined into a full campaign—over 30 years separates the newest from the oldest—they have been selected to provide play across a

of your own invention or drawn from another D&D setting, provides the perfect framing device for the campaign. The characters hear rumors of each dungeon, with just enough information available to lead

Starting Characters

Compendium - Sources->Dungeons & Dragons->Planescape: Adventures in the Multiverse->Turn of Fortune’s Wheel

level and don’t recall what came before, ascribe it to the multiversal glitch the characters are experiencing. CoupleOfKooks “I am a mimir, a magical device designed to provide information. If you have

creating their characters. If you want to include characters who hail from Sigil, a gate-town, or other places where planar travel is common, consider using the character options in Sigil and the

Developing a Darklord

Compendium - Sources->Dungeons & Dragons->Van Richten’s Guide to Ravenloft

when creating your Darklord’s backstory: What was the first depraved act the Darklord chose to commit, and how did their ideal encourage them down this path? Was the Darklord rewarded or celebrated for

their evil? Did that reaction encourage greater crimes? Were these rewards earned or justified? Did the Darklord repeat or escalate their wickedness to obtain something they selfishly desired? Did the

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