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Returning 35 results for 'both being diameter copies rules'.
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Magic Items
Icewind Dale: Rime of the Frostmaiden
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
rest within 30 feet of it, meditating on the mythallar. Up to eight creatures can be attuned to it at one time; otherwise, the Ythryn mythallar follows the attunement rules in the Dungeon Master&rsquo
Monsters
Mordenkainen Presents: Monsters of the Multiverse
.
Tunneler. The kruthik can burrow through solid rock at half its burrowing speed and leaves a 10-foot-diameter tunnel in its wake.Multiattack. The kruthik makes two Stab or Spike attacks..
Stab. Melee
":"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
Magic Items
Princes of the Apocalypse
diameter, weighs 10 pounds, and has a solid outer shell. The orb detonates 1d100 hours after its creation, releasing the elemental energy it contains. The orb gives no outward sign of how much time
batter it. The wind is strong enough to uproot weak trees and destroy light structures after at least 10 minutes of exposure. Otherwise, the rules for strong wind apply, as detailed in chapter 5 of the
Compendium
- Sources->Dungeons & Dragons->Strixhaven: A Curriculum of Chaos
characters wish to earn Relationship Points, treat the dance lesson as a Relationship encounter using the rules in chapter 3. Have players note the results of this encounter on their copies of the tracking sheet.
Compendium
- Sources->Dungeons & Dragons->Strixhaven: A Curriculum of Chaos
Relationship encounter using the rules in chapter 3. Have players note the results of this encounter on their copies of the tracking sheet.
” section in chapter 3.
Scufflecup Rules Each participant fills a teacup with hot tea and places it on the table. The participants then roll initiative. At least one Scufflecup participant is a student who
Compendium
- Sources->Dungeons & Dragons->The Book of Many Things
the game board are ten stacks of playing cards. Each stack has four copies of the following six cards: Comet, Gem, Moon, Skull, Star, and Sun.
A ghostly goblin in jester garb manifests on the far side
riddle, the ghost can explain the rules more clearly: Objective. The characters must guess which cards are in the ghost’s hand and in what order. Rules. To make their first guess, the characters must
Compendium
- Sources->Dungeons & Dragons->Strixhaven: A Curriculum of Chaos
Relationship encounter using the rules in chapter 3. Have players note the results of this encounter on their copies of the tracking sheet.
Compendium
- Sources->Dungeons & Dragons->Xanathar's Guide to Everything
effect, then follow the rules for that kind of area as normal (see the “Areas of Effect” section in chapter 10 of the Player’s Handbook). If an area of effect is circular and covers at least half a
using. Every 5 feet of the area equals 1 inch of the template’s size. For example, the 20-foot-radius sphere of the fireball spell, which has a 40-foot diameter, would translate into a circular
Compendium
- Sources->Dungeons & Dragons->Mordenkainen's Tome of Foes
Kruthik Hive Lord A hive lord rules each kruthik hive. When the hive lord dies, the surviving members of the hive abandon their lair and search for a new one. When a suitable location is found, the
. The kruthik can burrow through solid rock at half its burrowing speed and leaves a 10-foot-diameter tunnel in its wake.
Actions
Multiattack. The kruthik makes two stab attacks or two spike attacks
Compendium
- Sources->Dungeons & Dragons->Tomb of Annihilation
illusory. Tactile exploration reveals that the liquid has no substance and the font is dry. The dark figure is a magical, illusory duplicate of whichever character opened the door to the room. It copies
shadow duplicate drinks all the illusory soup in the font, a 1-inch-diameter eyeball made of incandescent orange crystal appears at the bottom of the font and can easily be removed. If the eye is
Compendium
- Sources->Dungeons & Dragons->Spelljammer: Adventures in Space->Astral Adventurer’s Guide
distance equal to the longest dimension of its form. For example, a spherical planet 5,000 miles in diameter has an air envelope 15,000 miles in diameter, with the planet at the center of it. An air
121, and the foul air turns deadly 120 days later. Deadly air is unbreathable. Any creature that tries to breathe deadly air begins to suffocate (see the rules on suffocation in the Player’s Handbook
Compendium
- Sources->Dungeons & Dragons->Tomb of Annihilation
of an otherwise empty alcove, and carved into the top of the disk is a serpentine symbol.
The room contains four pits, each one a bell-shaped chamber 10 feet deep and 10 feet in diameter. The pits
checks made to jump. Fenthaza (see area 5) carries the keys for these bindings. See “Adventuring Gear” in chapter 5 of the Player’s Handbook for rules on breaking, escaping, and unlocking manacles (and
Compendium
- Sources->Dungeons & Dragons->Waterdeep: Dungeon of the Mad Mage
mountain with a full moon symbol above it. Close inspection of the moon reveals a half-inch-diameter hole in the middle of it. The arch is one of Halaster’s magic gates (see “Gates”). Its rules are
Compendium
- Sources->Dungeons & Dragons->Waterdeep: Dungeon of the Mad Mage
(three women and two men), and five bugbears.
Blood Circle. Painted in blood on the middle of the floor is a 10-foot-diameter circle with ten equidistant spokes extending outward from its circumference
a rust monster. Arch Gate. The arch is one of Halaster’s magic gates (see “Gates”). The Xanathar Guild forces nearby are aware of the gate but don’t know how to activate it. Its rules are as follows
Compendium
- Sources->Dungeons & Dragons->Dungeon Master’s Guide
days at least. Layers 45–47: Azzagrat The demon lord Graz’zt embodies manipulation and cruelty, tempting mortals with the promise of appalling delights and decadent luxuries. He rules over the realm of
, surrounded by a seemingly endless expanse of ocean and brine flats. The Prince of Demons rules his layer from two serpentine towers, which emerge from a turbid sea. Each tower is topped with an enormous
Compendium
- Sources->Dungeons & Dragons->The Wild Beyond the Witchlight
challenge the monarch for the right to rule. The grounds are 20 feet in diameter. Combatants are shackled by one wrist or ankle to a 10-foot length of chain attached to the tree. Each chain has AC 19
, 11 hit points, and immunity to poison and psychic damage. Using an action, a creature can pull a chain free of the tree with a successful DC 17 Strength (Athletics) check. Combat Rules. A trial by
Compendium
- Sources->Dungeons & Dragons->Out of the Abyss
-foot-wide column in the middle of a 75-foot-diameter cavern. Both the cavern and the outpost are unlit. A secret door in the column’s base leads to the tower interior, but finding it requires a
(leaving the mage and eight drow to staff the outpost). Use the drow pursuit rules in chapter 2, and assume a pursuit level of 4. Drow Patrol B The characters encounter a drow elite warrior and 1d8
Compendium
- Sources->Dungeons & Dragons->Strixhaven: A Curriculum of Chaos
Relationship Encounter If there are students with whom the characters wish to earn Relationship Points, treat the fashion show as a Relationship encounter using the rules in chapter 3. Have players note the results of this encounter on their copies of the tracking sheet.
Compendium
- Sources->Dungeons & Dragons->Tyranny of Dragons
boulders at this end of the field are all at least 2 feet in diameter and weigh 500 pounds or more. The cyclopes speak only Giant. If any character addresses them in that language, they ignore any
questions but explain the rules of their game: the characters’ boulder must fly farther than the cyclops’s. How the characters accomplish this is unimportant to the cyclopes, but the boulder can’t be
Compendium
- Sources->Dungeons & Dragons->Rise of Tiamat
boulders at this end of the field are all at least 2 feet in diameter and weigh 500 pounds or more. The cyclopes speak only Giant. If any character addresses them in that language, they ignore any
questions but explain the rules of their game: the characters’ boulder must fly farther than the cyclops’s. How the characters accomplish this is unimportant to the cyclopes, but the boulder can’t be
Compendium
- Sources->Dungeons & Dragons->Strixhaven: A Curriculum of Chaos
, or crafting site, or for other approved purposes. If the characters explore this area before or after orientation, it is set up to promote Extracurriculars, the rules of which appear earlier in the
area on the library’s third floor holds copies of most of the mundane, widely available written works in the multiverse. The books are inscrutably cataloged, so it’s almost impossible to find anything
Compendium
- Sources->Dungeons & Dragons->The Book of Many Things
and assist the deck’s owners. They make sure the owners understand the rules of drawing cards, the wide range of possible effects, and the dangers of keeping a Deck of Many Things long enough to draw
the Grim Harrow’s attention (the Grim Harrow is detailed in chapter 19). Research the Deck of Many Things. When they aren’t actively pursuing copies of the Deck of Many Things, knights of the Solar
Compendium
- Sources->Dungeons & Dragons->Waterdeep: Dungeon of the Mad Mage
60-foot-diameter fountain adorned with eight statues that represent the Dark Seldarine (the drow pantheon). Cracked tiles fanning out from the fountain form a web-like mosaic on the floor.
Guards
hundreds of tiny, interlocking stone gears. The rules of this gate are as follows: Any creature that inspects the frame and succeeds on a DC 15 Wisdom (Perception) check sees that one of the gears has
Compendium
- Sources->Dungeons & Dragons->Monster Manual (2014)
fate. Baphomet The demon lord Baphomet, also known as the Horned King and the Prince of Beasts, rules over minotaurs and other savage creatures. If he had his way, civilization would crumble and all
the abyssal depths. The wretched Faceless Lord cares nothing for cultists or mortal servants, and its sole desire is to turn all creatures into formless copies of its horrid self. In its resting state
Compendium
- Sources->Dungeons & Dragons->Dungeon Master’s Guide
Magic Item Categories Every magic item belongs to a category. The Magic Item Categories table lists the nine categories and provides examples. Rules for the categories appear after the table. Magic
and attempt to activate it unless its description notes otherwise. Staffs Items in the Staff category vary widely in appearance: some are of nearly equal diameter throughout and smooth, others are
Compendium
- Sources->Dungeons & Dragons->Icewind Dale: Rime of the Frostmaiden
5-foot-diameter, crimson, semitranslucent crystal sphere in a low stand. A door in the side of each sphere opens when a creature that has telepathy approaches within 5 feet of it; half the door swings
ceremorph (see appendix C) is equipped with two nonmagical items: Laser Pistol. Rules for laser pistols appear in the Dungeon Master’s Guide. This weapon can fire 33 shots before its energy cell is
Compendium
- Sources->Dungeons & Dragons->Dungeon Master’s Guide
Travel The rules in the “Exploration” section in the Player’s Handbook cover the basics of travel on a scale ranging from minutes to days. The tools in this section can add excitement to a longer
the stages of a journey. (Use multiple copies of the Travel Planner for a journey with more than three stages.) For each stage, note where it starts and ends, the distance covered, and the predominant
Compendium
- Sources->Dungeons & Dragons->Princes of the Apocalypse
orb measures 12 inches in diameter, weighs 10 pounds, and has a solid outer shell. The orb detonates 1d100 hours after its creation, releasing the elemental energy it contains. The orb gives no
and debris batter it. The wind is strong enough to uproot weak trees and destroy light structures after at least 10 minutes of exposure. Otherwise, the rules for strong wind apply, as detailed in
Compendium
- Sources->Dungeons & Dragons->Tomb of Annihilation
sunlight, and creatures averse to sunlight are affected by it. The gargoyle heads are 5 feet tall and 5 feet wide, with mouths that are 2 feet in diameter. Behind each head, an airtight stone valve blocks a
fully immersed in wine. After 12 rounds, the wine fills the tomb. Use the underwater combat rules in chapter 9 of the Player’s Handbook to handle fighting in these conditions. Visibility within the
Compendium
- Sources->Dungeons & Dragons->Waterdeep: Dungeon of the Mad Mage
unlock this gate.”
Gong. A 3-foot-diameter bronze gong hangs from a sturdy wooden frame anchored to the floor near the west wall. The gong is embossed with carvings of ears of corn. A padded wooden
arch’s gold inlay can’t be removed. The rules of this gate are as follows: The gate opens for 1 minute when a real or illusory dragon touches the arch. An artistic rendering of a dragon, such as a
Compendium
- Sources->Dungeons & Dragons->Waterdeep: Dungeon of the Mad Mage
39. Arcturia’s Boudoirs Mounted above the double door to these chambers is a 4-foot-diameter, 2-inch-thick disk of black stone upon which is engraved a white symbol depicting a bony human hand. A
. The arch is one of Halaster’s magic gates (see “Gates”). Its rules are as follows: If three humanoids hold hands while standing within 5 feet of the gate, it opens for 1 minute. Characters must be
Compendium
- Sources->Dungeons & Dragons->Candlekeep Mysteries
extradimensional magic created by worshipers of Gond (god of craft). An intricate clockwork device is suspended in a two-foot-diameter, faintly glowing crystal orb embedded in the ceiling over the bar. The Avowed
conversation or debates with others. Side chambers hold hot saunas and massage parlors. House of the Binder A seeker can request a copy of any book or scroll in the library, and the work of creating copies
Compendium
- Sources->Dungeons & Dragons->Storm King's Thunder
Words of the Oracle Etched into the floor of area 11 and hidden under a thin layer of frost is a 20-foot-diameter, mithral-inlaid circle inscribed with the kong (king) rune (see "Giant Runes" in the
, and she needs your help.”
Who rules in Hekaton’s stead? “His daughter, Serissa.”
What befell Hekaton? “He was misled by his eldest daughters, Mirran and Nym, who covet his throne.”
Are Mirran and
Compendium
- Sources->Dungeons & Dragons->Dragonlance: Shadow of the Dragon Queen
doors in the room should lead outside, no other entrances into the Barb were visible from the exterior. A Spellbook Emblazoned with the
Symbol of the Mages of High Sorcery Rules of the Trial Rovina
in diameter, with a door on the wall opposite the characters and the pedestal at the center. The door is locked and can be opened only by the key at the center of the rotunda or by casting the knock
Compendium
- Sources->Dungeons & Dragons->Storm King's Thunder
60-foot-diameter hut with a beaded curtain entrance in the northeast wall, facing an outdoor campfire. The interior of the hut is one large chamber dominated by a shallow, 10-foot-diameter, circular
: General Features” sidebar for rules on opening doors and lifting portcullises). From the room beyond comes the sound of rushing water from the nearby river. The passage leads to a cold, dark, and vast