cause returns given to have 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

Cauldron of Rebirth

Magic Items Dungeon Master’s Guide

. Raise Dead. As a Magic action, you can cause the cauldron to grow large enough for a Medium creature to crouch within. You can revert the cauldron to its normal size as a Magic action, harmlessly

) for at least 8 hours, the salt is consumed and the creature returns to life as if by Raise Dead at the next dawn. Once used, this property can’t be used again for 7 days.

Vampire

Monsters Monster Manual

, the vampire uses Shape-Shift to become mist (no action required). If it can’t use Shape-Shift, it is destroyed. While it has 0 Hit Points in mist form, it can’t return to its vampire form

, and it must reach its resting place within 2 hours or be destroyed. Once in its resting place, it returns to its vampire form and has the Paralyzed condition until it regains any Hit Points, and it

Cauldron of Rebirth Legacy

Magic Items Tasha’s Cauldron of Everything

action, you can cause the cauldron to grow large enough for a Medium creature to crouch within. You can revert the cauldron to its normal size as an action, harmlessly shunting anything that can’t

consumed and the creature returns to life as if by raise dead at the next dawn. Once used, this property can’t be used again for 7 days.

Precognitive Mage

Monsters Guildmasters’ Guide to Ravnica

creature it can see makes an attack roll, a saving throw, or an ability check, the mage can cause the roll to be made with advantage or disadvantage.Precognitive mages, a rarity among Azorius

been given a more prominent position, which she has embraced with enthusiasm. She worries about the impact that her guild has on the rest of Ravnica but believes in her heart that she is helping the

Icon of Ravenloft

Magic Items Curse of Strahd

The Icon of Ravenloft is a 12-inch-tall statuette made of the purest silver, weighing 10 pounds. It depicts a cleric kneeling in supplication. The icon was given to Strahd by the archpriest Ciril

undead. Only a creature attuned to the icon can use its other properties. Augury. You can use an action to cast an augury spell from the icon, with no material components required. Once used, this

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.

King Hekaton

Monsters Storm King's Thunder

action on his turn, Hekaton can shift his weight and cause any ship upon which he stands to heave to one side or the other. All other creatures standing on the ship must succeed on a DC 10 Dexterity

presided over a court that included representatives of every race of giant, from mighty storm giants to lowly hill giants. He used the power of the Wyrmskull Throne — a gift given to him by his wife

Steel Predator

Monsters Mordenkainen Presents: Monsters of the Multiverse

case, it does what it must to fulfill its mission. If all goes according to plan, a steel predator slays its target and then voluntarily returns to Sigil, where it’s broken down into parts that

can be used in another steel predator. Battle damage can cause this instinct to fail, however, in which case the steel predator lingers in the area, hunting and killing other creatures that resemble

Infernal Calling

Spells Xanathar's Guide to Everything

verbal command to the devil (no action required by you). It obeys the command if the likely outcome is in accordance with its desires, especially if the result would draw you toward evil. Otherwise

returns to you to report having done so. If your concentration ends before the spell reaches its full duration, the devil doesn’t disappear if it has become immune to your verbal commands

Iymrith

Monsters Storm King's Thunder

a secret yet widespread organization called the Kraken Society. Using information given to them by the evil storm giant sisters, Kraken Society operatives ambushed and killed Queen Neri. Iymrith then

that lair is invaded. The dragon then burrows out, leaving its attackers to be crushed and suffocated. When it returns later, it collects its possessions — along with the wealth of the dead

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

Star Spawn Mangler

Monsters Mordenkainen Presents: Monsters of the Multiverse

end of that turn, the cultist teleports to an unoccupied space it can see within 30 feet of it and returns to its normal form. The cultist can’t be targeted directly by any attack or other effect

flame (no action required). While inflamed, the cultist has telepathy with a range of 30 feet, and it can teleport as a bonus action up to 30 feet to an unoccupied space it can see. In addition

Star Spawn Grue

Monsters Mordenkainen Presents: Monsters of the Multiverse

feet of it and returns to its normal form. The cultist can’t be targeted directly by any attack or other effect while it’s in the slug-like form, but it is subject to areas of effect as

surrounds the cultist for 1 minute, until the cultist is incapacitated or dies, or until the cultist extinguishes the flame (no action required). While inflamed, the cultist has telepathy with a range

Mighty Fortress

Spells Xanathar's Guide to Everything

crumble to dust if removed from the fortress. A staff of one hundred invisible servants obeys any command given to them by creatures you designate when you cast the spell. Each servant functions as if

thickness. It is immune to poison and psychic damage. Reducing a section of stone to 0 hit points destroys it and might cause connected sections to buckle and collapse at the DM’s discretion. After

Guild Keyrune

Magic Items Guildmasters’ Guide to Ravnica

access to privileged places in its guild’s headquarters and outposts. At the DM’s discretion, a character might be given a keyrune upon attaining a renown score of 25 in their guild

enough space for the creature, the keyrune doesn’t transform. See the Monster Manual for the creature’s stat block — the name of which is given in bold in the keyrune’s

Centaur Legacy

Species Guildmasters’ Guide to Ravnica

the laboratories of the Simic. Centaurs celebrate life and growth, and the birth of a foal is always cause for festivities. At the same time, they revere the traditions of the past, and among both

Centaurs’ given names are passed down through family lines. The name bestowed on a new foal is typically the name of the most recently deceased family member of the same gender, keeping alive the

Nilbog

Monsters Mordenkainen Presents: Monsters of the Multiverse

that cause disorder unless they are appeased. Goblins have no name for this deity and dare not give it one, lest Maglubiyet use its name to ensnare and crush it as he did their other deities. They

possess another goblin. The only way to keep a nilbog from wreaking havoc is to treat it well and give it respect and praise. Among fey courts, the risk of attracting a nilbog has given rise to the

Stalagma Steelshadow

Monsters Waterdeep: Dungeon of the Mad Mage

half its flying speed.Stalagma Steelshadow’s Lair Lair Actions On initiative count 20 (losing initiative ties), the dragon takes a lair action to cause one of the following effects: The

60 feet per round and take no falling damage. Given days or longer to work, the dragon can make clouds and fog within its lair as solid as stone, forming structures and other objects as it wishes

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

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

Star Spawn Larva Mage

Monsters Mordenkainen Presents: Monsters of the Multiverse

the end of that turn, the cultist teleports to an unoccupied space it can see within 30 feet of it and returns to its normal form. The cultist can’t be targeted directly by any attack or other

extinguishes the flame (no action required). While inflamed, the cultist has telepathy with a range of 30 feet, and it can teleport as a bonus action up to 30 feet to an unoccupied space it can see. In

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

was in its space. The eye can’t be harmed or dispelled, but it winks out within an antimagic field. A scrying eye lasts until Halaster ends the effect (no action required). A minor illusory

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

. A stat block is given for each of Auril’s three forms. These descriptions do not reflect Auril at full power, but rather Auril as she is encountered in this adventure.Lair Actions Auril

Star Spawn Hulk

Monsters Mordenkainen Presents: Monsters of the Multiverse

. At the end of that turn, the cultist teleports to an unoccupied space it can see within 30 feet of it and returns to its normal form. The cultist can’t be targeted directly by any attack or other

extinguishes the flame (no action required). While inflamed, the cultist has telepathy with a range of 30 feet, and it can teleport as a bonus action up to 30 feet to an unoccupied space it can see. In

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

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

Artus Cimber

Monsters Tomb of Annihilation

following properties while attuned to the dagger, provided he has the weapon drawn: Cause a blue gem set into the dagger’s pommel to shed bright light in a 20-foot radius and dim light for an

returns to normal at a rate of 10 degrees per minute. Artus can cast one of the following spells from the ring (spell save DC 17) by expending the necessary number of charges: Bigby's hand (2

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

Graz'zt Legacy

Monsters Out of the Abyss

Zelatar, found within his Abyssal domain of Azzatar. Graz’zt’s maddening influence radiates outward in a tangible ripple, warping reality around him. Given enough time in a single location

initiative count 20 (losing initiative ties), Graz’zt can take a lair action to cause one of the following effects; he can’t use the same effect two rounds in a row: Graz’zt casts

Priest of Osybus (Dread)

Monsters Van Richten’s Guide to Ravenloft

reborn when they perish. In an effort to rid themselves of this curse, they devoted themselves to the same Dark Powers with whom their master had communed. They were given a mission: provide a person

stat block of a shadow. The shadow obeys the priest’s mental commands (no action required) and takes its turn immediately after the priest. If the creature is within 5 feet of the priest, it

Priest of Osybus

Monsters Van Richten’s Guide to Ravenloft

curse, they devoted themselves to the same Dark Powers with whom their master had communed. They were given a mission: provide a person of nobility and might to serve as an earthly vessel for these

mental commands (no action required) and takes its turn immediately after the priest. If the creature is within 5 feet of the priest, it can turn back into a tattoo as an action, reappearing on the priest’s flesh and regaining all its hit points.

Priest of Osybus (Ectoplasmic)

Monsters Van Richten’s Guide to Ravenloft

given a mission: provide a person of nobility and might to serve as an earthly vessel for these powers to enter the world and conquer it. If they succeeded, their immortality would be assured. A suitable

body, but it otherwise uses the stat block of a shadow. The shadow obeys the priest’s mental commands (no action required) and takes its turn immediately after the priest. If the creature is

Priest of Osybus (Spectral)

Monsters Van Richten’s Guide to Ravenloft

will be reborn when they perish. In an effort to rid themselves of this curse, they devoted themselves to the same Dark Powers with whom their master had communed. They were given a mission: provide

silhouette of its original body, but it otherwise uses the stat block of a shadow. The shadow obeys the priest’s mental commands (no action required) and takes its turn immediately after the priest. If

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