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Returning 35 results for 'before being diameter changes rolls'.
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Spells
Player’s Handbook
A Club or Quarterstaff you are holding is imbued with nature’s power. For the duration, you can use your spellcasting ability instead of Strength for the attack and damage rolls of melee
you cast it again or if you let go of the weapon.
Cantrip Upgrade. The damage die changes when you reach levels 5 (d10), 11 (d12), and 17 (2d6).
Monsters
Monster Manual
Tunneler. The umber hulk can burrow through solid rock at half its Burrow Speed and leaves a 10-foot-diameter tunnel in its wake.Multiattack. The umber hulk makes three Rend attacks.
Rend. Melee
. Failure: The target can’t take Reactions until the start of the umber hulk’s next turn, and the target rolls 1d8;{"diceNotation":"1d8", "rollType":"roll", "rollAction":"Confusing Gaze"} to
Magic Items
Dungeon Master’s Guide
This staff has 6 charges and can be wielded as a magic Quarterstaff that grants a +2 bonus to attack rolls and damage rolls made with it. While holding it, you have a +2 bonus to spell attack rolls
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
+1 bonus to attack rolls and damage rolls made with this magic weapon. Each rune beyond the first grants the Moonblade an additional property. The DM chooses each property or determines it randomly by
.
Moonblade Properties
1d100
Property
01-60
Increase the weapon’s bonus to attack rolls and damage rolls by 1, to a maximum of +3. Reroll if the Moonblade already has a +3 bonus.
61
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
Monsters
Candlekeep Mysteries
exhaustion. When the target finishes a short or long rest, the target loses every level of exhaustion gained from this attack.
Change Shape. The gingwatzim changes from its true form—a 3-foot
-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
Sea Hag
Legacy
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Monsters
Basic Rules (2014)
has disadvantage on attack rolls against the hag.Claws. Melee Weapon Attack: +5;{"diceNotation":"1d20+5","rollType":"to hit","rollAction":"Claws"} to hit, reach 5 ft., one target. Hit: 10 (2d6 + 3
carrying with a magical illusion that makes her look like an ugly creature of her general size and humanoid shape. The effect ends if the hag takes a bonus action to end it or if she dies.
The changes
Monsters
Journeys through the Radiant Citadel
Pack Leader. The aurumvorax’s allies have advantage on attack rolls while within 10 feet of the aurumvorax, provided it isn’t incapacitated.
Tunneler. The aurumvorax can burrow through
solid rock and metal at half its burrowing speed and leaves a 5-foot-diameter tunnel in its wake.Multiattack. The aurumvorax makes one Bite attack and two Claw attacks.
Bite. Melee Weapon
Backgrounds
Spelljammer: Adventures in Space
to adapt to zero gravity. Being weightless doesn’t give you disadvantage on any of your melee attack rolls (see “Weightlessness” below).
WEIGHTLESSNESS
In any location where
, flying, or swimming speed in a straight line. The creature continues along this course, moving in a straight line at its speed on each of its turns until something stops it or changes its trajectory.
Reincarnate
Legacy
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Spells
Basic Rules (2014)
body. If the target's soul isn't free or willing to do so, the spell fails.
The magic fashions a new body for the creature to inhabit, which likely causes the creature's race to change. The GM rolls
had in its original form, except it exchanges its original race for the new one and changes its racial traits accordingly.
Sea Hag (Coven Variant)
Legacy
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Monsters
Monster Manual (2014)
has disadvantage on attack rolls against the hag.
Shared Spellcasting. While all three members of a hag coven are within 30 feet of one another, they can each cast the following spells from the
makes her look like an ugly creature of her general size and humanoid shape. The effect ends if the hag takes a bonus action to end it or if she dies.
The changes wrought by this effect fail to hold up
Staff of the Woodlands
Legacy
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Magic Items
Basic Rules (2014)
This staff can be wielded as a magic quarterstaff that grants a +2 bonus to attack and damage rolls made with it. While holding it, you have a +2 bonus to spell attack rolls.
The staff has 10
tree. The tree 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
Monsters
Acquisitions Incorporated
charmed, and magic can't put him to sleep.
Sunlight Sensitivity. While in sunlight, K'thriss has disadvantage on attack rolls, as well as on Wisdom (Perception) checks that rely on sight.
Innate
uses the stat block of a poisonous snake with these changes:
It has an Intelligence score of 12 (+2).
It has telepathy out to a range of 30 feet.
Monsters
Thieves’ Gallery
(2d6);{"diceNotation":"2d6", "rollType":"damage", "rollAction":"Shortsword and Dagger", "rollDamageType":"piercing"} piercing damage and has disadvantage on attack rolls until the start of Xenk&rsquo
with absolute seriousness of purpose—an outlook that clashes with Edgin Darvis;Edgin's nonchalance.Daggersword Shift. Xenk changes the form of his daggersword, choosing one of the following forms: a longsword, or a shortsword in one hand and a dagger in the other.
Monsters
Mordenkainen Presents: Monsters of the Multiverse
":"piercing"} piercing damage. If the leucrotta scores a critical hit, it rolls the damage dice three times, instead of twice.
Hooves. Melee Weapon Attack: +6;{"diceNotation":"1d20+6","rollType":"to
kills transformed into gnolls, others underwent more bizarre changes; leucrottas were the most numerous of these.
As clever as it is cruel, a leucrotta loves to deceive, torture, and kill. Creatures who
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
in the area covered by the storm. The winds impose disadvantage on ranged attack rolls. The winds extinguish open flames and disperse fog.
Siege Monster. The tempest deals double damage to objects
Elder Tempest
Legacy
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Monsters
Mordenkainen’s Tome of Foes
storm 1d6 + 4;{"diceNotation":"1d6+4","rollType":"roll","rollAction":"Living Storm"} miles in diameter. Heavy precipitation in the form of either rain or snow falls there, causing the area to be lightly
winds impose disadvantage on ranged attack rolls. The winds extinguish open flames and disperse fog.
Siege Monster. The tempest deals double damage to objects and structures.Multiattack. The tempest
Axe of the Dwarvish Lords
Legacy
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Magic Items
Dungeon Master’s Guide (2014)
rolls made with it. The axe also functions as a belt of dwarvenkind, a dwarven thrower, and a sword of sharpness.
Random Properties
The axe has the following randomly determined properties:
2 minor
the creature neither loses its racial traits nor gains the racial traits of a dwarf. The physical changes wrought by the axe aren’t considered magical in nature (and therefore can’t be
Monsters
Waterdeep: Dungeon of the Mad Mage
changes. He prefers to remain unseen, skulking about invisibly or peering through scrying sensors that resemble wide-open eyes surrounded by sparkling motes of light.
Halaster’s abilities far
ghostly, 1-foot-diameter humanoid eye surrounded by motes of light. The sensor is stationary, though Halaster can reorient the eye to face in any direction. Halaster can see through the eye as though he
Monsters
Van Richten’s Guide to Ravenloft
Blood Frenzy. The loup garou has advantage on attack rolls against a creature that doesn’t have all its hit points.
Legendary Resistance (2/Day). When the loup garou fails a saving throw, it
Claws attack (dire wolf or hybrid form only) or one Longsword attack (humanoid form only) against each creature it moves past.
Bite (Costs 3 Actions). The loup garou changes into hybrid or dire wolf
Symbol
Legacy
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Spells
Basic Rules (2014)
, a scroll, or a treasure chest). If you choose a surface, the glyph can cover an area of the surface no larger than 10 feet in diameter. If you choose an object, that object must remain in its place
communication and has disadvantage on attack rolls and ability checks.
Fear. Each target must make a Wisdom saving throw and becomes frightened for 1 minute on a failed save. While frightened, the
Yeenoghu
Legacy
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Monsters
Out of the Abyss
same effect two rounds in a row.
Yeenoghu causes an iron spike—5 feet tall and 1 inch in diameter—to burst from the ground at a point he can see within 100 feet of him. Any creature in
, causing them to have advantage on melee weapon attack rolls and causing attack rolls to have advantage against them.
Regional Effects
The region containing Yeenoghu’s lair is warped by his
Monsters
Mordenkainen Presents: Monsters of the Multiverse
count 20, all gnoll;gnolls and hyena;hyenas within the lair are enraged, causing them to have advantage on melee weapon attack rolls and causing attack rolls to have advantage against them.
Iron Spike
. Yeenoghu causes an iron spike—5 feet tall and 1 inch in diameter—to burst from the ground at a point he can see within 100 feet of him. Any creature in the space where the spike emerges
Monsters
Mordenkainen Presents: Monsters of the Multiverse
weapon the target is carrying or wearing takes a permanent −1 penalty to damage rolls. The penalty worsens each time a target is subjected to this effect. If the penalty on an object drops to
, this creature can move up to 20 feet through spaces no more than an inch in diameter. It must end this movement in a space that can accommodate its full size. Otherwise, it takes 5 force damage and
Monsters
Planescape: Adventures in the Multiverse
damage and is magically weakened as it is desynchronized from the time stream. While the creature is in this state, attack rolls against it have advantage, it has the poisoned condition, and other
the effect on itself after it succeeds on three of these saves.
Time Gate (1/Day). The dragon conjures a 20-foot-diameter, circular portal in the space between its horns or in an unoccupied space it
Compendium
- Sources->Dungeons & Dragons->Tales from the Yawning Portal->a4
11. Spinning Cylinder The stone corridor changes abruptly to a spinning cylinder, apparently made of some light-colored metal. The inner surface rotates rapidly. It is painted in a dizzying black-and
-white spiral pattern, and it glistens as if coated with some substance.
The 30-foot-long cylinder is 10 feet in diameter and spins counterclockwise at about 10 feet per second. The inner surface is
Compendium
- Sources->Dungeons & Dragons->Netheril’s Fall: Tales of Terror, Treasure, and Time Travel
as at twilight or after magical weather. In a dampened magic zone, which is typically no more than 300 feet in diameter, magical effects sputter feebly or appear ephemeral. When a creature in the area
casts a spell with a duration of 1 minute or longer, the spell’s duration is halved. Spell attack rolls in the area are made with Disadvantage, and creatures have Advantage on saving throws against spells and other magical effects.
Compendium
- Sources->Dungeons & Dragons->Netheril’s Fall: Tales of Terror, Treasure, and Time Travel
magic has been frequently refined, known as empowered force zones, amplify raw magical energy and are typically no more than 300 feet in diameter. When a creature in an empowered force zone rolls damage for a spell or attack that deals Force damage, it treats any 1 or 2 on a damage die as a 3.
Compendium
- Sources->Dungeons & Dragons->D&D Beyond Basic Rules
Staff of the Woodlands Staff, Rare (Requires Attunement by a Druid) This staff has 6 charges and can be wielded as a magic Quarterstaff that grants a +2 bonus to attack rolls and damage rolls made
with it. While holding it, you have a +2 bonus to spell attack rolls. 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
Compendium
- Sources->Dungeons & Dragons->Player’s Handbook
nature’s power. For the duration, you can use your spellcasting ability instead of Strength for the attack and damage rolls of melee attacks using that weapon, and the weapon’s damage die becomes a d8. If
the attack deals damage, it can be Force damage or the weapon’s normal damage type (your choice). The spell ends early if you cast it again or if you let go of the weapon. Cantrip Upgrade. The damage die changes when you reach levels 5 (d10), 11 (d12), and 17 (2d6).
Compendium
- Sources->Dungeons & Dragons->D&D Beyond Basic Rules
nature’s power. For the duration, you can use your spellcasting ability instead of Strength for the attack and damage rolls of melee attacks using that weapon, and the weapon’s damage die becomes a d8. If
the attack deals damage, it can be Force damage or the weapon’s normal damage type (your choice). The spell ends early if you cast it again or if you let go of the weapon. Cantrip Upgrade. The damage die changes when you reach levels 5 (d10), 11 (d12), and 17 (2d6).
Compendium
- Sources->Dungeons & Dragons->Waterdeep: Dungeon of the Mad Mage
Bore Worm Trobriand modeled this 100-foot-long, 15-foot-diameter drilling machine after a purple worm. Unless Trobriand commands it to do otherwise, the worm tirelessly moves through well-worn
rating of 16 (15,000 XP) and is a purple worm, with these changes: The worm is a construct. It has immunity to poison and psychic damage, as well as bludgeoning, piercing, and slashing damage from
Compendium
- Sources->Dungeons & Dragons->Dungeon Master’s Guide
Staff of the Woodlands Staff, Rare (Requires Attunement by a Druid) This staff has 6 charges and can be wielded as a magic Quarterstaff that grants a +2 bonus to attack rolls and damage rolls made
with it. While holding it, you have a +2 bonus to spell attack rolls. 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
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
). Overlapping Air Envelopes When two bodies come close enough to each other, their air envelopes merge, and the quality of the air around the smaller body changes to match that of the larger body. When
Compendium
- Sources->Dungeons & Dragons->Dungeon Master’s Guide (2014)
Staff of the Woodlands Staff, rare (requires attunement by a druid)
This staff can be wielded as a magic quarterstaff that grants a +2 bonus to attack and damage rolls made with it. While holding
it, you have a +2 bonus to spell attack rolls.
The staff has 10 charges for the following properties. It regains 1d6 + 4 expended charges daily at dawn. If you expend the last charge, roll a d20. On






