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Returning 35 results for 'diameter must are'.
Magic Items
Dungeon Master’s Guide
Etched with eldritch runes, this 1-inch-diameter ruby allows you to use a Simple or Martial weapon as a Spellcasting Focus for your spells. For this property to work, you must attach the ruby to the
Monsters
Monster Manual
Tunneler. The worm can burrow through solid rock at half its Burrow Speed and leaves a 10-foot-diameter tunnel in its wake.Multiattack. The worm makes one Bite attack and one Tail Stinger attack
, the worm must succeed on a DC 21 Constitution saving throw at the end of that turn or regurgitate all swallowed creatures, each of which falls in a space within 5 feet of the worm and has the Prone
Magic Items
Dungeon Master’s Guide
This small black sphere measures 3/4 of an inch in diameter and weighs an ounce. Typically, 1d4 + 4 Beads of Force are found together.
You can take a Magic action to throw the bead up to 60 feet
. The bead explodes in a 10-foot-radius Sphere on impact and is destroyed. Each creature in the Sphere must succeed on a DC 15 Dexterity saving throw or take 5d4 Force damage. A sphere of transparent
Spells
Player’s Handbook
in the shape of a cage can be up to 20 feet on a side and is made from 1/2-inch diameter bars spaced 1/2 inch apart. A prison in the shape of a box can be up to 10 feet on a side, creating a solid
’t leave it by nonmagical means. If the creature tries to use teleportation or interplanar travel to leave, it must first make a Charisma saving throw. On a successful save, the creature can use
Spells
Player’s Handbook
feet high, and 5 feet thick or a circle that has a 20-foot diameter and is up to 20 feet high and 5 feet thick. The wall blocks line of sight.
When the wall appears, each creature in its area makes a
creature moves through the wall, it must spend 4 feet of movement. Furthermore, the first time a creature enters a space in the wall on a turn or ends its turn there, the creature makes a Dexterity
Magic Items
Dungeon Master’s Guide
.
Spells. While holding the staff, you can cast one of the spells on the following table from it, using your spell save DC. The table indicates how many charges you must expend to cast the spell
is 60 feet tall and has a 5-foot-diameter trunk, and its branches at the top spread out in a 20-foot radius. The tree appears ordinary but radiates a faint aura of Transmutation magic that can be
Magic Items
Dungeon Master’s Guide
special Somatic component: you must reach into the hat and “pull” the spell out of it.
Unknown Spell. While holding the hat, you can try to cast a level 1+ spell you don’t know. The
spell must be on the Wizard spell list, it must be of a level you can cast, and it can’t have Material components costing more than 1,000 GP. Once you decide on the spell, you must expend a spell
Magic Items
Dungeon Master’s Guide
;s control.
An orb is an etched crystal globe about 10 inches in diameter. When used, it grows to about 20 inches in diameter, and mist swirls inside it.
While attuned to an orb, you can take a
Magic action to peer into the orb’s depths. You must then make a DC 15 Charisma saving throw. On a successful save, you control the orb for as long as you remain attuned to it. On a failed save, the
Magic Items
Dungeon Master’s Guide
speed by 5 miles per hour for 8 hours. You can dismiss the fan as a Magic action.
Swan Boat (Rare). You can take a Magic action to touch the token to a body of water at least 60 feet in diameter
action while on the boat to command it to move or to turn up to 90 degrees. The boat remains for 24 hours and then disappears. You can dismiss the boat as a Magic action.
Tree (Uncommon). You must be
Spells
Player’s Handbook
feet in diameter. If you choose an object, it must remain in place; if it is moved more than 10 feet from where you cast this spell, the glyph is broken, and the spell ends without being triggered
Disadvantage on attack rolls and ability checks.
Fear. Each target must succeed on a Wisdom saving throw or have the Frightened condition for 1 minute. While Frightened, the target must move at least 30
Magic Items
Dungeon Master’s Guide
This 2-foot-diameter black sphere is a hole in the multiverse, hovering in space and stabilized by a magical field surrounding it.
The sphere obliterates all matter it passes through and all matter
Bonus Action to cause it to move in one direction of your choice, up to a number of feet equal to 5 times your Intelligence modifier (minimum 5 feet). Any creature whose space the sphere enters must
Spells
Player’s Handbook
) to conceal the glyph. The glyph can cover an area no larger than 10 feet in diameter. If the surface or object is moved more than 10 feet from where you cast this spell, the glyph is broken, and the
it as part of creating the glyph. The spell must target a single creature or an area. The spell being stored has no immediate effect when cast in this way.
When the glyph is triggered, the stored
Spells
Player’s Handbook
wall into a globe up to 30 feet in diameter centered on a point within range. The wall lasts for the duration. If you position the wall in a space occupied by a creature, the spell ends instantly
harm. If another creature that can see the wall moves within 20 feet of it or starts its turn there, the creature must succeed on a Constitution saving throw or have the Blinded condition for 1 minute
Monsters
Waterdeep: Dungeon of the Mad Mage
Tunneler. The worm can burrow through solid rock at half its burrow speed and leaves a 10-foot-diameter tunnel in its wake.
Regeneration. The worm regains 10 hit points at the start of each of its
+9","rollType":"damage","rollAction":"Tail Stinger","rollDamageType":"piercing"} piercing damage, and the target must make a DC 19 Constitution saving throw, taking 42 (12d6);{"diceNotation":"12d6
Monsters
Acquisitions Incorporated
—gears, plates, screws, and wires, leaving behind its weapons and anything else it was carrying.
Each collapsed modron also spits out a six-inch-diameter magically charged disk that powers the
","rollType":"recharge","rollAction":"Paralysis Gas"}. The pentadrone exhales a 30-foot cone of gas. Each creature in that area must succeed on a DC 11 Constitution saving throw or be paralyzed for 1 minute
Monsters
Candlekeep Mysteries
);{"diceNotation":"4d6+2","rollType":"damage","rollAction":"Energy Drain","rollDamageType":"necrotic"} necrotic damage, and the target must succeed on a DC 12 Constitution saving throw or gain 1 level of
-diameter sphere of luminous ectoplasm—into one of its two alternate forms, or from one of those forms back into its true form. In object form, it can’t move or make attacks but otherwise retains
Spells
Elemental Evil Player's Companion
ground where a pillar appears must be wide enough for its diameter, and you can target the ground under a creature if that creature is Medium or smaller. Each pillar has AC 5 and 30 hit points. When
You cause up to six pillars of stone to burst from places on the ground that you can see within range. Each pillar is a cylinder that has a diameter of 5 feet and a height of up to 30 feet. The
Monsters
Eberron: Rising from the Last War
":"1d6","rollType":"recharge","rollAction":"Spell Mimicry"}. The living spell creates a 40-foot-diameter sphere of fog within 60 feet of it (the fog spreads around corners). When a creature enters the
fog for the first time on a turn or starts its turn there, it must make a DC 16 Constitution saving throw, taking 22 (5d8);{"diceNotation":"5d8","rollType":"damage","rollAction":"Spell Mimicry
Ruby of the War Mage
Legacy
This doesn't reflect the latest rules and lore.
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Magic Items
Xanathar's Guide to Everything
Etched with eldritch runes, this 1-inch-diameter ruby allows you to use a simple or martial weapon as a spellcasting focus for your spells. For this property to work, you must attach the ruby to the
Monsters
Monstrous Compendium Vol. 1: Spelljammer Creatures
Shutdown. If targeted by dispel magic, the horror must succeed on a Constitution saving throw against the caster’s spell save DC or fall unconscious for 1 minute or until it takes any damage
.
The body of a clockwork horror is about two feet in diameter, but the legs give it an overall diameter of four feet. Embedded in the front of its head is a crystal that enables the clockwork horror to
Monsters
Strixhaven: A Curriculum of Chaos
objects and structures.
Tunneler. The ruin grinder can burrow through solid rock at half its burrowing speed and leaves a 10-foot-diameter tunnel in its wake.Multiattack. The ruin grinder makes two
", "rollType":"damage", "rollAction":"Excavator", "rollDamageType":"force"} force damage. If the target is a Huge or smaller creature, it must succeed on a DC 17 Strength saving throw or be pushed up
Monsters
Princes of the Apocalypse
Tunneler. The worm can burrow through solid rock at half its burrow speed and leaves a 10-foot-diameter tunnel in its wake.Multiattack. The worm makes two attacks: one with its bite and one with its
":"damage","rollAction":"Bite","rollDamageType":"piercing"} piercing damage. If the target is a Large or smaller creature, it must succeed on a DC 19 Dexterity saving throw or be swallowed by the worm. A
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
duration of the spell’s casting time, you must be within 30 feet of the Ythryn mythallar or the spell fails.
Touching the Mythallar. Any creature that touches the globe of the mythallar must make
Vitriolic Sphere
Legacy
This doesn't reflect the latest rules and lore.
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Spells
Elemental Evil Player's Companion
You point at a location within range, and a glowing, 1-foot-diameter ball of emerald acid streaks there and explodes in a 20-foot-radius sphere. Each creature in that area must make a Dexterity
Monsters
Phandelver and Below: The Shattered Obelisk
Siege Monster. The auger deals double damage to objects and structures.
Tunneler. The auger can burrow through solid rock at half its burrow speed and leaves a 10-foot-diameter tunnel in its
", "rollAction":"Flaming Drill", "rollDamageType":"piercing"} piercing damage, and if the target is a creature, it must succeed on a DC 17 Strength saving throw or have the prone condition.A fiendish
Monsters
Candlekeep Mysteries
":"1d6","rollType":"recharge","rollAction":"Slow"}. The golem targets one or more creatures it can see within 10 feet of it. Each target must make a DC 17 Wisdom saving throw against this magic. On a
golem’s chest, hidden behind an 9-inch-diameter stone disk. The outer surface of the disk is inscribed with a blue circle that has eight golden beams radiating from it like the rays of the sun
Monsters
Guildmasters’ Guide to Ravnica
Earth Tremors. The wurm creates earth tremors as it moves overland or underground. Any creature that comes within 30 feet of the moving wurm for the first time on a turn must succeed on a DC 20
":"force"} force damage.
Siege Monster. The wurm deals double damage to objects and structures.
Tunneler. The wurm can burrow through solid rock at half its burrow speed and leaves a 10-foot-diameter
Monsters
Planescape: Adventures in the Multiverse
Tunneler. The eyestalk can burrow through solid rock at half its burrow speed and leaves a 10-foot-diameter tunnel in its wake.Multiattack. The eyestalk uses Eradication Gaze, if available, and makes
","rollType":"damage","rollAction":"Bite","rollDamageType":"piercing"} piercing damage. If the target is a Large or smaller creature, it must succeed on a DC 19 Dexterity saving throw or be swallowed by the
Spells
Elemental Evil Player's Companion
You cause a tremor in the ground within range. Each creature other than you in that area must make a Dexterity saving throw. On a failed save, a creature takes 1d6 bludgeoning damage and is knocked
prone. If the ground in that area is loose earth or stone, it becomes difficult terrain until cleared, with each 5-foot-diameter portion requiring at least 1 minute to clear by hand.
At Higher Levels
Monsters
Monstrous Compendium Vol. 1: Spelljammer Creatures
Burst. The goon balloon bursts when it drops to 0 hit points, releasing noxious gas in a 10-foot-radius sphere centered on itself. Creatures in that area must succeed on a DC 12 Constitution saving
one of the goon balloon’s eyes as the goon balloon targets one creature it can see within 30 feet of itself. The target must make a DC 12 Wisdom saving throw, taking 6 (1d12);{"diceNotation
Monsters
Spelljammer: Adventures in Space
grappled by it. The target must make a DC 12 Wisdom saving throw. On a failed save, the target takes 16 (3d10);{"diceNotation":"3d10","rollType":"damage","rollAction":"Mind-Probing Antennae","rollDamageType
target must succeed on a DC 12 Wisdom saving throw or be paralyzed for 1 minute. The target can repeat the saving throw at the end of each of its turns, ending the effect on itself on a
Monsters
Spelljammer: Adventures in Space
Tunneler. The dragon can burrow through solid rock at half its burrowing speed and leaves a 10-foot-diameter tunnel in its wake.
Unusual Nature. The dragon doesn't require air.Multiattack. The
a blast of frost in a 30-foot cone. Each creature in the cone must make a DC 15 Constitution saving throw. On a failed save, the creature takes 27 (6d8);{"diceNotation":"6d8","rollType":"damage
Monsters
Mordenkainen Presents: Monsters of the Multiverse
tempest is always at the center of a storm 1d6 + 4;{"diceNotation":"1d6+4","rollType":"roll","rollAction":"Living Storm"} miles in diameter. Heavy precipitation in the form of either rain or snow
);{"diceNotation":"1d6","rollType":"recharge","rollAction":"Lightning Storm"}. All other creatures within 120 feet of the tempest must each make a DC 21 Dexterity saving throw, taking 27 (6d8
Monsters
Spelljammer: Adventures in Space
Tunneler. The dragon can burrow through solid rock at half its burrowing speed and leaves a 5-foot-diameter tunnel in its wake.
Unusual Nature. The dragon doesn’t require air.Bite. Melee
":"1d6","rollType":"recharge","rollAction":"Cold Breath"}. The dragon exhales a blast of frost in a 15-foot cone. Each creature in the cone must make a DC 13 Constitution saving throw. On a failed
Monsters
The Wild Beyond the Witchlight
feet. If the brigganock dies, its soul light fades away.
Tunneler. Using a pickaxe or similar tool, a brigganock can burrow through solid rock at a speed of 5 feet, leaving a 6-inch-diameter tunnel
brigganock, or any object being worn or carried by another creature, and the activity must take place within a 10-foot cube. For example, the brigganock could use this action to rapidly carve a