blasts before diameter cause required

Staff of Thunder and Lightning

Magic Items Dungeon Master’s Guide

required). Thunder. When you hit with a melee attack using the staff, you can cause the staff to emit a crack of thunder audible out to 300 feet (no action required). The target you hit must succeed on a

is used, it can’t be used again until the next dawn. Lightning. When you hit with a melee attack using the staff, you can cause the target to take an extra 2d6 Lightning damage (no action

Grasping Vine

Spells Player’s Handbook

save DC). The vine can grapple only one creature at a time, and you can cause the vine to release a Grappled creature (no action required). As a Bonus Action on your later turns, you can repeat the

Orb of Dragonkind

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

action to cause the orb to issue a telepathic call that extends in all directions for 40 miles. Chromatic dragons in range feel compelled to come to the orb as soon as possible by the most direct

Sphere of Annihilation

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

Mythallar Cloak

Magic Items Netheril’s Fall

cloak, you can take a Bonus Action and expend 1 charge to activate the cloak’s magic. The magic lasts for 1 minute or until you end it early (no action required). While the cloak’s magic

is active, you gain a Fly Speed of 30 feet and can hover. Additionally, once on each of your turns when you hit a creature with an attack roll and deal damage, you can cause the target to take an extra 1d4 Radiant damage. If you are aloft when the cloak’s magic ends, you fall.

Earth Tremor

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

Young Kruthik

Monsters Mordenkainen Presents: Monsters of the Multiverse

. Tunneler. The kruthik can burrow through solid rock at half its burrowing speed and leaves a 2½-foot-diameter tunnel in its wake.Stab. Melee Weapon Attack: +5;{"diceNotation":"1d20+5","rollType

kruthiks in one area might cause the remaining hive members to move elsewhere. Although they can feed on carrion, kruthiks prefer live prey. They kill enemies by impaling them on their spiked limbs, then

Dominate Monster Legacy

Spells Basic Rules (2014)

telepathic link to issue commands to the creature while you are conscious (no action required), which it does its best to obey. You can specify a simple and general course of action, such as "Attack that

do. During this time, you can also cause the creature to use a reaction, but this requires you to use your own reaction as well. Each time the target takes damage, it makes a new Wisdom saving throw

Ythryn Mythallar

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

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

Bones of the Earth

Spells Elemental Evil Player's Companion

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

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

Elder Tempest

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

(Costs 2 Actions). The tempest can cause a bolt of lightning to strike a point on the ground anywhere under its storm. Each creature within 5 feet of that point must make a DC 20 Dexterity saving throw

Coiling Grasp Tattoo

Magic Items Tasha’s Cauldron of Everything

tattoo ends, the tattoo vanishes, and the needle reappears in your space. Grasping Tendrils. While the tattoo is on your skin, you can, as an action, cause the tattoo to extrude into inky tendrils

escape the grapple by succeeding on a DC 14 Strength (Athletics) or Dexterity (Acrobatics) check. The grapple also ends if you halt it (no action required), if the creature is ever more than 15 feet away from you, or if you use this tattoo on a different creature.

Kruthik Hive Lord

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

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

Orb of Dragonkind Legacy

Magic Items Basic Rules (2014)

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 use an action to peer into the orb’s depths and

the detect magic spell from the orb without using any charges. Call Dragons While you control the orb, you can use an action to cause the artifact to issue a telepathic call that extends in all

Halaster Blackcloak

Monsters Waterdeep: Dungeon of the Mad Mage

(losing initiative ties), Halaster takes a lair action to cause one of the following effects: Halaster targets a volume of unoccupied space or solid stone no larger than four 10-foot cubes within 30

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

Elder Tempest Legacy

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

another creature's turn. The tempest regains spent legendary actions at the start of its turn. Move. The tempest moves up to its speed. Lightning Strike (Costs 2 Actions). The tempest can cause a bolt of

Adult Kruthik

Monsters Mordenkainen Presents: Monsters of the Multiverse

. Tunneler. The kruthik can burrow through solid rock at half its burrowing speed and leaves a 5-foot-diameter tunnel in its wake.Multiattack. The kruthik makes two Stab or Spike attacks. Stab. Melee

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 carrion, kruthiks prefer live prey. They kill

Aboleth Legacy

Monsters Basic Rules (2014)

. On initiative count 20 (losing initiative ties), the aboleth takes a lair action to cause one of the following effects: The aboleth casts phantasmal force (no components required) on any number

Dominate Beast Legacy

Spells Basic Rules (2014)

link to issue commands to the creature while you are conscious (no action required), which it does its best to obey. You can specify a simple and general course of action, such as "Attack that creature

. During this time, you can also cause the creature to use a reaction, but this requires you to use your own reaction as well. Each time the target takes damage, it makes a new Wisdom saving throw against

Dominate Person Legacy

Spells Basic Rules (2014)

link to issue commands to the creature while you are conscious (no action required), which it does its best to obey. You can specify a simple and general course of action, such as "Attack that

. During this time you can also cause the creature to use a reaction, but this requires you to use your own reaction as well. Each time the target takes damage, it makes a new Wisdom saving throw

Healing Spirit

Spells Xanathar's Guide to Everything

choice). Until the spell ends, whenever you or a creature you can see moves into the spirit’s space for the first time on a turn or starts its turn there, you can cause the spirit to restore 1d6

hit points to that creature (no action required). The spirit can’t heal constructs or undead. The spirit can heal a number of times equal to 1 + your spellcasting ability modifier (minimum

Wall of Water

Spells Elemental Evil Player's Companion

diameter, 20 feet high, and 1 foot thick. The wall vanishes when the spell ends. The wall’s space is difficult terrain. Any ranged weapon attack that enters the wall’s space has

disadvantage on the attack roll, and fire damage is halved if the fire effect passes through the wall to reach its target. Spells that deal cold damage that pass through the wall cause the area of the wall

Navigation Orb

Magic Items Storm King's Thunder

A navigation orb is a hollow, 7-foot-diameter sphere of thin, polished mithral with a large skye (cloud) rune embossed on its outer surface. The orb levitates 10 feet above the ground and is keyed to

altitude and location remain fixed until the orb is returned or replaced. As an action, you can cause one of the following effects to occur if you are touching the orb: The castle moves at a

Yeenoghu Legacy

Monsters Out of the Abyss

flail attacks. If an attack hits, he can cause it to create an additional effect of his choice or at random (each effect can be used only once per Multiattack): 1. The attack deals an extra 13 (2d12

of civilization on his layer of the Abyss. Lair Actions On initiative count 20 (losing initiative ties), Yeenoghu can take a lair action to cause one of the following effects; he can’t use the

Githzerai Anarch Legacy

Monsters Mordenkainen’s Tome of Foes

action to cause one of the following effects; the anarch can’t use the same effect two rounds in a row: The anarch casts the lightning bolt spell (at 5th level), but the anarch can change the

Limbo and brought to the Material Plane for as long as the anarch remains within 1 mile of it (no action required). If the anarch dies, these effects end after 1d6;{"diceNotation":"1d6","rollType

Storm Giant Quintessent Legacy

Monsters Volo's Guide to Monsters

can take a lair action to cause one of the following effects; the giant can't use the same effect two rounds in a row: The giant creates a thunderclap centered on a point anywhere in its lair. Each

within water) centered on a point anywhere in its lair. The sphere spreads around corners, and its area is heavily obscured. The fog lasts until the giant disperses it (no action required), and it can't

Reduced-threat Aboleth

Monsters Tales from the Yawning Portal

, an aboleth can invoke the ambient magic to take lair actions. On initiative count 20 (losing initiative ties), the aboleth takes a lair action to cause one of the following effects: The aboleth

casts phantasmal force (no components required) on any number of creatures it can see within 60 feet of it. While maintaining concentration on this effect, the aboleth can’t take other lair actions

Mighty Servant of Leuk-o

Magic Items Tasha’s Cauldron of Everything

(for either attuned creature), you can command it in the following ways: Open or close the hatch (no action required, once per turn) Move the servant up to its speed (no action required) As an

soul of the mighty warlord Leuk-o was drawn into the artifact and has become its animating force. The servant has been known to attack or move of its own accord, particularly if doing so will cause

Auril (Third Form)

Monsters Icewind Dale: Rime of the Frostmaiden

within the sphere is heavily obscured, and the sphere moves with Auril. The effect lasts until Auril drops to 0 hit points in this form, until she chooses to end the effect (no action required), or

the effect on itself on a success.Third Form Auril’s third form, called Winter’s Womb or the Queen of Frozen Tears by her most ardent followers, is a 3-foot-diameter ice diamond containing

Elder Brain Legacy

Monsters Volo's Guide to Monsters

mind once it is no longer incapacitated, and the elder brain can terminate the link at any time (no action required). The target can use an action on its turn to attempt to break the psychic link

Actions When fighting inside its lair, an elder brain can use lair actions. On initiative count 20 (losing initiative ties), an elder brain can take one lair action to cause one of the following

Morkoth Legacy

Monsters Volo's Guide to Monsters

to take lair actions. On initiative count 20 (losing initiative ties), the morkoth takes a lair action to cause one of the effects described below: The morkoth uses its Hypnosis action, originating

it takes damage. With a thought (no action required), the morkoth can initiate a change in the water within its lair that takes effect 1 minute later. The water can be as breathable and clear as air

Orcus Legacy

Monsters Out of the Abyss

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

disappear or until Orcus releases their grasp (no action required). Regional Effects The region containing Orcus’s lair is warped by the Orcus’s magic, creating one or more of the following

Yeenoghu

Monsters Mordenkainen Presents: Monsters of the Multiverse

+ 9);{"diceNotation":"2d12+9", "rollType":"damage", "rollAction":"Flail", "rollDamageType":"force"} force damage. If it’s his turn, Yeenoghu can cause the target to suffer one of the following

. 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

Demogorgon Legacy

Monsters Out of the Abyss

bulk of this palace extends deep underwater, in chill and darkened caverns. Lair Actions On initiative count 20 (losing initiative ties), Demogorgon can take a lair action to cause one of the

of the next round. On his turn, Demogorgon can move the illusory duplicate a distance equal to his walking speed (no action required). The first time a creature or object interacts physically with

Dekella, Bident of Thassa

Magic Items Mythic Odysseys of Theros

cold damage. Blessing of the Deep. If you are a worshiper of Thassa, you gain all the following benefits for which you have the required piety: Piety 10+. You can breathe underwater, and you gain a

within 1 mile of you, creating strong winds and heavy rain that cause violent waves (see “Weather at Sea” in chapter 5 of the Dungeon Master’s Guide) or calming a storm. In either

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