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Ythryn Mythallar

Magic Items Icewind Dale: Rime of the Frostmaiden

of existence as the Ythryn mythallar, you can use an action to cause it to fly in any direction you choose at a speed of 30 feet. All matter within 500 feet of the device moves with it. The Ythryn

hold. The largest mythallars are 150 feet in diameter. The Ythryn mythallar is a relatively small device—a mere 50 feet in diameter. To attune to this mythallar, a creature must finish a short

Robot Controller

Equipment

the device gives the device 3 charges. As an action while holding this device, you can expend 1 of its charges to cause one of the following effects: Control. One Construct of your choice within 60

This small handheld device features a glass pane with a glowing display that responds to your touch. The controller is powered by an energy cell stored in the device. Placing a full energy cell in

Fraternity of Order Law Bender

Monsters Planescape: Adventures in the Multiverse

armor, mage hand, prestidigitationProbability Loophole (3/Day). When the law bender or a creature it can see makes an attack roll, a saving throw, or an ability check, the law bender can cause the roll

to be made with advantage or disadvantage.Members of the Fraternity of Order find and exploit loopholes in the laws of the multiverse. Law benders are magistrates who skirt the rules of probability

Kruthik Hive Lord

Monsters Mordenkainen Presents: Monsters of the Multiverse

":"Acid Spray","rollDamageType":"acid"} acid damage on a failed save, or half as much damage on a successful one.A hive lord rules each kruthik hive. When the hive lord dies, the surviving members of the

warning and avoid areas where many other kruthiks have died. Slaying a sufficient number of kruthiks in one area might cause the remaining hive members to move elsewhere. Although they can feed on

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

Reborn

Species Van Richten’s Guide to Ravenloft

physical state that their minds are ill equipped to deal with. Their memories of events before this interruption are often vague or absent. Occasionally, the most unexpected experiences might cause

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.

Smuggler

Backgrounds Ghosts of Saltmarsh

’s Code. I uphold the unwritten rules of the smugglers, who do not cheat one another or directly harm innocents. (Lawful) 3 All for a Coin. I’ll do nearly anything if it

business. 5 I was tricked by a fellow smuggler who stole something precious from me. I will find that thief. 6 I give most of my profits to a charitable cause, and I don’t like to brag

Titivilus

Monsters Mordenkainen Presents: Monsters of the Multiverse

Teleport. Assault (Costs 2 Actions). Titivilus makes one Silver Sword attack, or he uses Frightful Word.Dispater, the gloomy Lord of Dis, rules from his iron palace, seeming to hide behind its

, Titivilus has manipulated everyone along his path to power, either to win them over to his cause or to remove them as a threat. Since gaining his position, Titivilus has convinced Dispater that countless

Knight of the Order

Backgrounds Sword Coast Adventurer's Guide

order’s cause. The “Knightly Orders of Faerûn” sidebar details several of the orders that are active at present and is designed to help inform your decision about which group

again in ruins, Dove Falconhand decided to reform the group with the primary goal of building alliances and friendship between the civilized races of the world and goodly people in order to combat evil

Eladrin Legacy

Species Mordenkainen’s Tome of Foes

eladrin of spring, and fury might cause an eladrin to change to summer. The following tables offer personality suggestions for eladrin of each season. You can roll on the tables or use them as

Everything dies eventually. Why bother building anything that is supposedly meant to last? 2 Nothing matters to you, and you allow others to guide your actions. 3 Your needs come first. In

Triton Legacy

Species Volo's Guide to Monsters

and worse, so you know you can count on them in a fight. — Brego Stoneheart, sea captain Tritons guard the ocean depths, building small settlements beside deep trenches, portals to the

, organized, and unified around a common cause. A triton on the surface becomes easily confused by the bewildering array of alliances, rivalries, and petty grievances that prevent the surface folk from

Deep Dragon Wyrmling Legacy

Monsters Fizban's Treasury of Dragons

cause of the hostility. 8 A deep dragon wants someone to manufacture a scenario that will get the dragon out of an old commitment to protect a city. Connected Creatures Deep dragons

it to the surface world. Lost and confused, the wyrmling has been captured by a group of cruel adventurers. 3 A deep dragon wyrmling whimsically rules over a worshipful group of kobolds, sending

Baphomet Legacy

Monsters Out of the Abyss

, the Horned King and the Prince of Beasts. He rules over minotaur;minotaurs and others with savage hearts. He is worshiped by those who want to break the confines of civility and unleash their bestial

, populated by minotaur;minotaurs, goristro;goristros, and quasit;quasits. Lair Actions On initiative count 20 (losing initiative ties), Baphomet can take a lair action to cause one of the following

Orcus Legacy

Monsters Out of the Abyss

chapter 7, "Treasure” of the Dungeon Master’s Guide.Orcus’s Lair Orcus makes his lair in the fortress city of Naratyr, which is on Thanatos, the layer of the Abyss that he rules

action to cause one of the following effects; he can’t use the same effect two rounds in a row: Orcus’s voice booms throughout the lair. His utterance causes one creature of his choice to

Criminal - Baldur's Gate

Backgrounds Baldur’s Gate: Descent into Avernus

underbelly of civilization, and you have survived up to this point by flouting the rules and regulations of society. Skill Proficiencies: Deception, Stealth Tool Proficiencies: One

Guild took over your family business, ran it into the ground, and burned the building for insurance money. You were driven into crime yourself, but you’ll never work for the Guild. You take

Zox Clammersham

Compendium - Sources->Dungeons & Dragons->Waterdeep: Dungeon of the Mad Mage

allows him to command the scaladar. He has put the constructs to work building a device he calls the Simulacrux. This device will, in theory, create a simulacrum of any scaladar that passes through

Izzet Engineer

Backgrounds Guildmasters’ Guide to Ravnica

basic knowledge of the structure of buildings, including the stuff behind the walls. You can also find blueprints of a specific building in order to learn the details of its construction. Such

sparkles. If you use an arcane focus, it probably takes the form of an intricate device that could include metal gauntlets, glass canisters, copper tubing, and leather straps attaching it to your body

Encounter Building

Compendium - Sources->Dungeons & Dragons->Xanathar's Guide to Everything

Encounter Building This section introduces new guidelines on building combat encounters for an adventure. They are an alternative to the rules in “Creating Encounters” in chapter 3 of the Dungeon

Master’s Guide. This approach uses the same math that underlies the rules presented in that book, but it makes a few adjustments to the way that math is presented to produce a more flexible system. This

Adventuring Gear

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

Adventuring Gear This section describes items and weapons that have special rules or require further explanation. The following items are presented in alphabetical order. Fargab These backpack-sized

the device and can be heard up to 10 feet away from the device. If no creature is wearing the fargab, the speakers make static noises instead. Fargab

Session Zero

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

run a special session—colloquially called session zero—to establish expectations, outline the terms of a social contract, and share house rules. Making and sticking to these rules can help ensure

that the game is a fun experience for everyone involved. Often a session zero includes building characters together. As the DM, you can help players during the character creation process by advising them to select options that will serve the adventure or campaign that awaits.

Ancient Deep Dragon Legacy

Monsters Fizban's Treasury of Dragons

. 7 Two Underdark settlements are about to go to war, having been carefully manipulated by a deep dragon. A desperate ruler offers a reward to anyone who can uncover the true cause of the hostility

, they use local settlements—and any competent visitors—as pawns in their struggle. 4 An ancient deep dragon has put the folk of a city to work building the dragon a metropolis to rule

General Features

Compendium - Sources->Dungeons & Dragons->Lost Mine of Phandelver

General Features Many of Thundertree’s buildings have crumbled in the years since the town was abandoned, even as nature threatens to swallow what remains. Buildings. A building in Thundertree is

terrain (see “Difficult Terrain” in the Basic Rules). Intact buildings are rundown, ramshackle stone cottages that are otherwise still standing. Their wooden doors are swollen and require a successful

Personality

Compendium - Sources->Dungeons & Dragons->Vecna: Eve of Ruin

. He is lonely and dreams of building a community of spellcasters who support each other. Unfortunately, his ego makes that dream all but impossible. Although Mordenkainen can be brash and off-putting

, he eschews cruelty and sees no reason to cause pointless suffering. The wizard doesn’t like to admit it, but he would put his own safety at risk to quell the pain of innocents.

Interacting with Objects

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

describes what happens. Sometimes, however, rules govern what you can do with an object, as detailed in the following sections. What Is an Object? For the purpose of the rules, an object is a discrete

, inanimate item like a window, door, sword, book, table, chair, or stone. It isn’t a building or a vehicle, which are composed of many objects. Time-Limited Object Interactions When time is short, such

Interacting with Objects

Compendium - Sources->Dungeons & Dragons->D&D Beyond Basic Rules

describes what happens. Sometimes, however, rules govern what you can do with an object, as detailed in the following sections. What Is an Object? For the purpose of the rules, an object is a discrete

, inanimate item like a window, door, sword, book, table, chair, or stone. It isn’t a building or a vehicle, which are composed of many objects. Time-Limited Object Interactions When time is short, such

Diseases

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

with the consequences. A disease that does more than infect a few party members is primarily a plot device. The rules help describe the effects of the disease and how it can be cured, but the

specifics of how a disease works aren't bound by a common set of rules. Diseases can affect any creature, and a given illness might or might not pass from one race or kind of creature to another. A plague

Location Overview

Compendium - Sources->Dungeons & Dragons->Divine Contention

Location Overview The wizard Thalivar built a tower at the heart of Leilon as a laboratory to study the monsters of the cosmos. Using a device called a planar beacon, Thalivar lured his prey into the

tower has been haunted by the ghosts of those who died within. Led by the wizard Gallio Elibro, forces from Neverwinter have recently rebuilt the tower for use as a garrison building. Gallio has repaired

Adult Crystal Dragon

Monsters Fizban's Treasury of Dragons

without the boredom. (Chaotic) 6 Control. Everyone is welcome, as long as they follow my rules. (Lawful) Crystal Dragon Adventures The Crystal Dragon Adventure Hooks table offers

antics sometimes cause avalanches that threaten nearby villages. 5 An adult crystal dragon enjoys shaping the ice and snow near a den of troll;trolls into a labyrinth and watching the trolls try to

Objects

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

before the wall does. For the purpose of these rules, an object is a discrete, inanimate item like a window, door, sword, book, table, chair, or stone, not a building or a vehicle that is composed of many other objects.

Objects

Compendium - Sources->Dungeons & Dragons->Dungeon Master’s Guide (2014)

before the wall does. For the purpose of these rules, an object is a discrete, inanimate item like a window, door, sword, book, table, chair, or stone, not a building or a vehicle that is composed of many other objects.

Learning by Observing

Compendium - Sources->Dungeons & Dragons->Dungeon Master’s Guide

the DM change the pitch or tempo of narration in different situations? Player Participation. Did the players participate in the world-building or make decisions that seemed to send the adventure in an

unexpected direction? How did the DM handle it? Rules Adjudication. To what extent did the DM lean on the rules to adjudicate outcomes? Did the DM adjudicate situations wisely or in ways that made the

Learning by Observing

Compendium - Sources->Dungeons & Dragons->D&D Beyond Basic Rules

the DM change the pitch or tempo of narration in different situations? Player Participation. Did the players participate in the world-building or make decisions that seemed to send the adventure in an

unexpected direction? How did the DM handle it? Rules Adjudication. To what extent did the DM lean on the rules to adjudicate outcomes? Did the DM adjudicate situations wisely or in ways that made the

What Caused the Mourning?

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

What Caused the Mourning? There will never be an official answer to the cause of the Mourning. As a DM in Eberron, we want you to decide the cause of this tragedy… or if you prefer, to leave it as a

mystery that will never be solved. With that said, people in Eberron itself have many theories about the cause of the Mourning; it’s up to you to decide if any of them are correct. The Mourning was

Chapter 2: Dungeon Master's Tools

Compendium - Sources->Dungeons & Dragons->Xanathar's Guide to Everything

. The chapter opens with optional rules meant to help you run certain parts of the game more smoothly. The chapter then goes into greater depth on several topics — encounter building, random encounters

you. It gives you new rules options, as well as some refined tools for creating and running adventures and campaigns. It is a supplement to the tools and advice offered in the Dungeon Master’s Guide

Introduction: How to Use a Monster

Compendium - Sources->Dungeons & Dragons->Monster Manual

the rules for monster customization and encounter building in the Dungeon Master’s Guide—to build your own adventures. Consult appendix B for monster lists that will help your adventure building. What’s

New in the 2025 Version? This is the 2025 version of the fifth edition Monster Manual. If you’ve read the 2014 version, much of this book will feel familiar, since the fundamental rules and variety

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