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Magic Items
The Book of Many Things
Created in the image of the Deck of Many Things, this deck of ivory or vellum cards bestows an assortment of minor benefits and penalties on those who draw from it. Most (75 percent) of these decks
have only thirteen cards, but the rest have twenty-two.
Before you draw a card, you must declare how many cards you intend to draw, then draw them randomly. Any additional cards drawn have no effect
Monsters
The Book of Many Things
Ruinous Acid. Any nonmagical weapon that hits the spider corrodes. After dealing damage, the weapon takes a permanent and cumulative −1 penalty to damage rolls. If its penalty drops to −5
. A ruin spider is easily recognizable by anyone familiar with the Deck of Many Things because the pattern on the back of the cards is duplicated on the spider’s carapace.Acid
Candle of Invocation
Legacy
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Magic Items
Basic Rules (2014)
This slender taper is dedicated to a deity and shares that deity's alignment. The candle's alignment can be detected with the detect evil and good spell. The GM chooses the god and associated
dim light in a 30-foot radius. Any creature within that light whose alignment matches that of the candle makes attack rolls, saving throws, and ability checks with advantage. In addition, a cleric or
Magic Items
The Book of Many Things
The backs of these cards are inscribed with glyphs representing the Inner Planes, the Outer Planes, or the holy symbols of various deities. While holding this deck, you can use it as a spellcasting
focus, and you gain a bonus to spell attack rolls and to your spell save DC. The bonus is determined by the deck’s rarity.
In addition, while you’re holding the deck, you can draw a card
Magic Items
Tasha’s Cauldron of Everything
figure of Vistani legend, Luba’s Tarokka of Souls shaped the destiny of countless heroes. The prophecies of this deck of cards also revealed great evils and guided its creator into the path of
amid shuffling cards, waiting for fate to turn foul—as it inevitably will.
Like all tarokka decks, the Tarokka of Souls is a lavishly illustrated collection of fifty-four cards, comprising the
Monsters
Mordenkainen Presents: Monsters of the Multiverse
. If detected, it sends electrical shocks through the ground toward pursuers while it retreats.
Clockworks
Gnomes’ tinkering with magic and mechanical devices has produced many failed
. If you roll a 1, the clockwork makes attack rolls with disadvantage until the end of its turn.
3
Ground Fault. The clockwork has vulnerability to lightning damage.
4
Imprinting Loop. Roll a
Compendium
- Sources->Dungeons & Dragons->The Book of Many Things
Doors and Key Cards Doors in the Donjon Sphere are made of the same space metals as the outer surface. A magical sensor above each doorway detects movement within 10 feet, which causes the door to
open until no more movement is detected. Some doors are color coded and require a key card to open. A creature carrying the appropriate key card can open a locked door by standing within 10 feet of the
Compendium
- Sources->Dungeons & Dragons->Vecna: Eve of Ruin
Viridian Den The walls and ceilings of this cozy den are made of luminescent jade. Rowdy patrons gather around game tables, scowling at dice and cards as they test their luck. A green-scaled draconic
center of the table. The goal of the game is to amass the highest-ranking hand of cards. At the start of the game, the croupier deals each participant a pair of cards. The croupier draws three cards to
Compendium
- Sources->Dungeons & Dragons->Player's Handbook (2014)
detected by any noise it makes or any tracks it leaves. Attack rolls against the creature have disadvantage, and the creature's attack rolls have advantage.
Invisible
Compendium
- Sources->Dungeons & Dragons->Basic Rules (2014)
Invisible An invisible creature is impossible to see without the aid of magic or a special sense. For the purpose of hiding, the creature is heavily obscured. The creature's location can be detected
by any noise it makes or any tracks it leaves. Attack rolls against the creature have disadvantage, and the creature's attack rolls have advantage.
Compendium
- Sources->Dungeons & Dragons->The Book of Many Things
Magic Items This section presents magic items in alphabetical order. Deck of Oracles Wondrous Item, Rare (Requires Attunement) The illustrations on this deck of oracle cards move or change subtly
when viewed indirectly. When you finish a long rest, you can spend 10 minutes consulting the cards for an omen of the coming day. Roll a d20 and record the number rolled. Once in the next 8 hours
Compendium
- Sources->Dungeons & Dragons->Curse of Strahd
crossbow, a light crossbow, a hand crossbow, and 20 bolts for each weapon. The north cabinet is unlocked and holds a small box containing a deck of playing cards and an assortment of wine glasses
. Trapdoor A trapdoor is hidden in the southwest corner of the floor. It can’t be detected or opened until the characters approach it from the underside (see area 32). Until then, Death House supernaturally hides the trapdoor.
Compendium
- Sources->Dungeons & Dragons->D&D Beyond Basic Rules
. For example, if a conversation with an NPC is cut short because the Sorcerer is convinced that NPC is a Doppelganger and targets it with a Chromatic Orb spell, everyone rolls Initiative, and the
Sorcerer does so with Advantage. If the doppelganger rolls well, it might still act before the Sorcerer’s spell goes off, reflecting the monster’s ability to anticipate the spell. Using Initiative Scores
Compendium
- Sources->Dungeons & Dragons->The Book of Many Things
Inspiration Hand You can use The Deck of Many Things card set (or an equivalent deck built from twenty-two playing cards) to give players alternative ways to use inspiration. Draw a number of cards
equal to the number of players and place the cards face up on the table where everyone can see them. Whenever a player gains inspiration, they must pick a card and later use the effect shown on the
Compendium
- Sources->Dungeons & Dragons->Tasha’s Cauldron of Everything
this deck of cards also revealed great evils and guided its creator into the path of nefarious forces. Untold times the deck’s creator, Mother Luba, narrowly escaped doom, spared only by her keen
deck. There these foul spirits dwell still, trapped within a nether-realm hidden amid shuffling cards, waiting for fate to turn foul—as it inevitably will. Like all tarokka decks, the Tarokka of Souls
Compendium
- Sources->Dungeons & Dragons->Basic Rules (2014)
Candle of Invocation Wondrous item, very rare (requires attunement) This slender taper is dedicated to a deity and shares that deity’s alignment. The candle’s alignment can be detected with the
in a 30-foot radius. Any creature within that light whose alignment matches that of the candle makes attack rolls, saving throws, and ability checks with advantage. In addition, a cleric or druid in
Conditions
without the aid of magic or a special sense. For the purpose of hiding, the creature is heavily obscured. The creature's location can be detected by any noise it makes or any tracks it leaves.Attack rolls against the creature have disadvantage, and the creature's attack rolls have advantage.
any effect that requires its target to be seen unless the effect's creator can somehow see you. Any equipment you are wearing or carrying is also concealed.Attacks Affected. Attack rolls against you
Compendium
- Sources->Dungeons & Dragons->D&D Beyond Basic Rules
some D&D games and for some players. DM Screen A DM screen shields your books, notes, and die rolls from your players. (See the “Ensuring Fun for All” section later in this chapter for more about when
and why you might want to hide die rolls.) Most DM screens have art on the outward-facing panels and handy rules information on the inside-facing panels. Others might be made of fancy wood or sculpted
Compendium
- Sources->Dungeons & Dragons->Dungeon Master’s Guide (2014)
Candle of Invocation Wondrous item, very rare (requires attunement) This slender taper is dedicated to a deity and shares that deity’s alignment. The candle’s alignment can be detected with the
in a 30-foot radius. Any creature within that light whose alignment matches that of the candle makes attack rolls, saving throws, and ability checks with advantage. In addition, a cleric or druid in
Compendium
- Sources->Dungeons & Dragons->Dungeon Master’s Guide
some D&D games and for some players. DM Screen A DM screen shields your books, notes, and die rolls from your players. (See the “Ensuring Fun for All” section later in this chapter for more about when
and why you might want to hide die rolls.) Most DM screens have art on the outward-facing panels and handy rules information on the inside-facing panels. Others might be made of fancy wood or sculpted
Compendium
- Sources->Dungeons & Dragons->The Book of Many Things
Effects for Single Cards A Deck of Many Things typically appears not as individual cards, but as a collection of cards characters can draw from. But this doesn’t have to be true; you can give each
they can use in subsequent adventures to find the cards that remain. Eventually the heroes assemble the entire deck, which they can then use in the traditional manner, drawing transformative cards from
Compendium
- Sources->Dungeons & Dragons->The Book of Many Things
boasts blooms from across the multiverse. A creature who plucks a flower from the garden rolls on the Cair Ophidian Flowers table to determine the type of flower chosen. A creature that spends 10
contains both women’s private living quarters as well as a small observatory and library. Asteria keeps a fantastic collection of magical cards in this library, including multiple versions of the Deck of
Compendium
- Sources->Dungeons & Dragons->Curse of Strahd
dismiss the horses with a second command word (“Arvesh”). The horses can be dispelled (DC 15) but not harmed. The wagon has a hidden trapdoor in its underbelly that can be detected by a character who
silver ewer (worth 100 gp) with five chicken eggs in it A tiny wooden box containing a deck of tarokka cards (see appendix E) wrapped in silk A set of copper pots and pans (worth 50 gp) Three sets of
Compendium
- Sources->Dungeons & Dragons->The Book of Many Things
of Many Things because the pattern on the back of the cards is duplicated on the spider’s carapace. I lost my favorite necklace to a ruin spider; the pendant had a large bead I could spin whenever I
to damage rolls. If its penalty drops to −5, the weapon is destroyed. Nonmagical ammunition made of metal that hits the spider is destroyed after dealing damage.
Spider Climb. The spider can climb
Compendium
- Sources->Dungeons & Dragons->Keys from the Golden Vault
have been cast in areas marked (A) on map 1.2. The museum’s guards and the curator have pass cards that allow them to bypass these alarms, and spare pass cards are kept in area V7 (see “Bypassing
locations, by searching the records room (area V6); the alarms can also be detected using detect magic. The alarms aren’t armed while the museum is open to the public. Animated Statues. The statues that
Compendium
- Sources->Dungeons & Dragons->The Wild Beyond the Witchlight
characters succeed on the check. Dice Rolls Many DMs like to roll their dice in the open, for all the players to see, to maintain transparency. Other DMs prefer to roll dice behind a screen to maintain
suspense. Either approach is fine. Even DMs who conceal their dice rolls might divulge certain results. For example, when a creature scores a critical hit against a character, it’s customary to let the
Compendium
- Sources->Dungeons & Dragons->Acquisitions Incorporated
difficult terrain. Additionally, each flight of steps is trapped at its midpoint with a magical rune that can be detected only with a successful DC 13 Intelligence (Investigation) or Wisdom (Perception
) check. Once detected, a rune can be disabled with a DC 15 Intelligence (Arcana) check or Dexterity check using thieves’ tools. A character aware of the rune can also attempt a DC 14 Strength (Athletics
Compendium
- Sources->Dungeons & Dragons->Heroes of the Borderlands
. Once detected, the pit can be safely avoided by sidling along its perimeter.
Escaping the Pit. The pit’s walls have cracks big enough to serve as handholds, allowing trapped creatures to climb out
a 9 or lower, it fails. In either case, the area’s description tells you what happens. Example. A Rogue tries to deceive the kobold with a Charisma (Deception) check. The player rolls a d20 and adds
Compendium
- Sources->Dungeons & Dragons->Curse of Strahd
fire, telling stories and guzzling wine. They are intoxicated and have disadvantage on attack rolls and ability checks. Three sober Vistani (male and female human bandit captains) are resting in three of
reference to that individual’s past deeds. She then asks the characters if they want their fortunes read. If they say yes, Madam Eva produces a worn deck of cards and proceeds with the sequence outlined
Compendium
- Sources->Dungeons & Dragons->Basic Rules (2014)
like a combat encounter. When a complex trap activates, it rolls initiative. The trap's description includes an initiative bonus. On its turn, the trap activates again, often taking an action. It
might make successive attacks against intruders, create an effect that changes over time, or otherwise produce a dynamic challenge. Otherwise, the complex trap can be detected and disabled or bypassed in
Compendium
- Sources->Dungeons & Dragons->Dungeon Master’s Guide (2014)
more like a combat encounter. When a complex trap activates, it rolls initiative. The trap’s description includes an initiative bonus. On its turn, the trap activates again, often taking an action
. It might make successive attacks against intruders, create an effect that changes over time, or otherwise produce a dynamic challenge. Otherwise, the complex trap can be detected and disabled or
Magic Items
Infernal Machine Rebuild
bones. You have vulnerability to radiant damage, and you have disadvantage on attack rolls while in direct sunlight.
09
You summon a unicorn that obeys your commands. If you give a command that
Charisma checks.
Any food and drink you eat spoils as you swallow it. Each time you eat or drink, you are poisoned for 1 hour.
12
You have a +1 bonus to attack rolls with weapons or spells
Compendium
- Sources->Dungeons & Dragons->Monsters of the Multiverse
segmented body remains buried. If detected, it sends electrical shocks through the ground toward pursuers while it retreats. Clockwork Bronze Scout
Medium Construct, Unaligned
Armor Class 13
Hit
clockwork’s turn. If you roll a 1, the clockwork makes attack rolls with disadvantage until the end of its turn. 3 Ground Fault. The clockwork has vulnerability to lightning damage. 4 Imprinting Loop. Roll
Compendium
- Sources->Dungeons & Dragons->Basic Rules (2014)
. Once the pit trap is detected, an iron spike or similar object can be wedged between the pit's cover and the surrounding floor in such a way as to prevent the cover from opening, thereby making it safe
sphere rolls initiative with a +8 bonus. On its turn, it moves 60 feet in a straight line. The sphere can move through creatures' spaces, and creatures can move through its space, treating it as difficult
Compendium
- Sources->Dungeons & Dragons->Monsters of the Multiverse
heart, causing those nearby to feel the approach of death. If detected, gloom weavers use their shadow magic to reduce enemies to ghastly corpses. Shadar-kai Gloom Weaver
Medium Humanoid (Elf
equal to half the creature’s hit point maximum. While the shadar-kai has temporary hit points from this trait, it has advantage on attack rolls.
Weight of Ages. Any Beast or Humanoid (except an elf






