bonus before device complete revert

Staff of the Adder

Magic Items Dungeon Master’s Guide

As a Bonus Action, you can turn the head of this staff into that of an animate, venomous snake for 1 minute or revert the staff to its inanimate form. When you take the Attack action, you can make

one of the attack rolls using the animated snake head, which has a reach of 5 feet. Apply your Proficiency Bonus and Wisdom modifier to the attack roll. On a hit, the target takes 1d6 Piercing damage

Rod of Lordly Might

Magic Items Dungeon Master’s Guide

This rod has a flanged head, and it functions as a magic Mace that grants a +3 bonus to attack rolls and damage rolls made with it. The rod has properties associated with six different buttons that

are set in a row along the haft. It has three other properties as well, detailed below. Buttons. You can press one of the following buttons as a Bonus Action; a button’s effect lasts until you

Animate Dead

Spells Player’s Handbook

turns, you can take a Bonus Action to mentally command any creature you made with this spell if the creature is within 60 feet of you (if you control multiple creatures, you can command any of them

chamber or corridor. If you issue no commands, the creature takes the Dodge action and moves only to avoid harm. Once given an order, the creature continues to follow it until its task is complete. The

Create Undead

Spells Player’s Handbook

). As a Bonus Action on each of your turns, you can mentally command any creature you animated with this spell if the creature is within 120 feet of you (if you control multiple creatures, you can

complete. The creature is under your control for 24 hours, after which it stops obeying any command you’ve given it. To maintain control of the creature for another 24 hours, you must cast

Staff of the Python

Magic Items Dungeon Master’s Guide

location. Absent commands from you, the snake defends itself. As a Bonus Action, you can command the snake to revert to staff form in its current space, and you can’t use the staff's property again

Daern's Instant Fortress

Magic Items Dungeon Master’s Guide

the tower to revert to statuette form, which works only if the tower is empty. Each creature in the area where the tower appears is pushed to an unoccupied space outside but next to the tower. Objects

a single door at ground level on the side facing you. The door opens only at your command, which you can issue as a Bonus Action. It is immune to the Knock spell and similar magic. Magic prevents the

Thayan Spell Tattoo

Magic Items Forgotten Realms: Heroes of Faerûn

saving throw or an attack roll, the spell save DC is 13 and the attack bonus is +5. If your Attunement to the tattoo ends, the tattoo vanishes. You can also cast the spell once without a spell slot

; if the spell consumes its Material components, they are consumed when you complete the tattoo. Inking a Thayan Spell Tattoo takes the same amount of time and money as scribing a Spell Scroll of an equivalent level.

Crown of Horns

Magic Items Forgotten Realms: Adventures in Faerûn

transformation is complete, you become a Lich under the DM's control. Each time you use this Artifact's Cone of Undeath or Myrkul's Hand benefit, there is a 10 percent cumulative chance that you

instantly complete this transformation. Cone of Undeath. You can take a Magic action to unleash a wave of unholy light in a 60-foot Cone. Each creature in the Cone makes a DC 18 Constitution saving throw

Mechanical Wonder

Magic Items Forgotten Realms: Heroes of Faerûn

hours or until a creature touches the wonder with its key as a Utilize action to deactivate it, after which the wonder has the Unconscious condition until it is wound again. Bonus Actions Chime

resembles a metal turtle shell with straps. It is designed to be worn on your back or flank, depending on your anatomy. Once wound, the mobility wonder transforms into a personal transport device and

Mimir

Magic Items Planescape: Adventures in the Multiverse

This skull-shaped device is filled with knowledge. The device weighs 5 pounds and is covered with subtle etchings of planar sigils. As a bonus action, you can toss the device into the air, whereupon

successful unarmed strike against AC 22 or a successful DC 22 Dexterity (Acrobatics) check. You can use a bonus action to seize and stow the device. The device has AC 22, 25 hit points, immunity to

Robot Controller

Equipment

turns, ending the effect on itself on a success. Replacing the Energy Cell. While the device has charges remaining, its energy cell can’t be removed. Once the device has 0 charges, you can replace the energy cell with a new cell by using an action or a bonus action.

This small handheld device features a glass pane with a glowing display that responds to your touch. The controller is powered by an energy cell stored in the device. Placing a full energy cell in

Lizardfolk Shaman Legacy

Monsters Monster Manual (2014)

to 1 hour. It can revert to its true form as a bonus action. Its statistics, other than its size, are the same in each form. Any equipment it is wearing or carrying isn’t transformed. It reverts to its true form if it dies.

Doric

Monsters Thieves’ Gallery

reverts to her true form if she is incapacitated or dies. She can revert to her true form using a bonus action. While Doric is transformed, her stat block is replaced by the stat block of that form

, except she keeps her current hit points, her hit point maximum, this bonus action, her alignment, and her Intelligence, Wisdom, and Charisma scores.

Harpy Matriarch

Monsters Ghosts of Saltmarsh

disguise itself to resemble a humanoid of roughly similar size and shape for up to 1 hour. It can revert to its true form as a bonus action. This illusion does not hold up to close scrutiny. Luring Song

. The matriarch must take a bonus action on its subsequent turns to continue singing. It can stop singing at any time. The song ends if the matriarch is incapacitated. While charmed by the matriarch, a

Shapechange Legacy

Spells Basic Rules (2014)

addition to gaining those of the creature. If the creature has the same proficiency as you and the bonus listed in its statistics is higher than yours, use the creature's bonus in place of yours. You

can't use any legendary actions or lair actions of the new form. You assume the hit points and Hit Dice of the new form. When you revert to your normal form, you return to the number of hit points you

Archdruid

Monsters Mordenkainen Presents: Monsters of the Multiverse

new form. The archdruid reverts to its true form if it dies or falls unconscious. The archdruid can revert to its true form using a bonus action. While in a new form, the archdruid’s stat block

is replaced by the stat block of that form, except the archdruid keeps its current hit points, its hit point maximum, this bonus action, its languages and ability to speak, and its Spellcasting action

Amble

Monsters Locathah Rising

their new form. Amble reverts to their true form if they die or fall unconscious. Amble can revert to their true form using a bonus action on their turn. Amble's game statistics are replaced by the

blocks the sphere. While within the sphere, Amble and their allies gain a +5 bonus to Dexterity (Stealth) and Wisdom (Perception) checks, and any light from open flames in the sphere isn’t

Archdruid Legacy

Monsters Volo's Guide to Monsters

form. The archdruid reverts to its true form if it dies or falls unconscious. The archdruid can revert to its true form using a bonus action on its turn. While in a new form, the archdruid retains its

Wyllow

Monsters Waterdeep: Dungeon of the Mad Mage

falls to the ground, melds with her new form, or is worn by the new form. Wyllow reverts to her true form if she dies or falls unconscious. Wyllow can revert to her true form using a bonus action on her

Drow Arachnomancer Legacy

Monsters Mordenkainen’s Tome of Foes

Change Shape (Recharges after a Short or Long Rest). The drow can use a bonus action to magically polymorph into a giant spider, remaining in that form for up to 1 hour. It can revert to its true

form as a bonus action. Its statistics, other than its size, are the same in each form. It can speak and cast spells while in giant spider form. Any equipment it is wearing or carrying in humanoid form

Danse Macabre

Spells Xanathar's Guide to Everything

zombie or a skeleton (the statistics for zombies and skeletons are in the Monster Manual), and it gains a bonus to its attack and damage rolls equal to your spellcasting ability modifier. You can

use a bonus action to mentally command the creatures you make with this spell, issuing the same command to all of them. To receive the command, a creature must be within 60 feet of you. You decide

Raezil

Monsters The Wild Beyond the Witchlight

Cunning Action. On each of her turns, Raezil can use a bonus action to take the Dash, Disengage, or Hide action. Fey Ancestry. Raezil has advantage on saving throws against being charmed, and magic

on the politics of Prismeer. Once she is no longer petrified, Raezil is bound by the rule of reciprocity (see “Rules of Conduct” in chapter 2) to help the characters complete any

Chronolometer

Magic Items Acquisitions Incorporated

While attuned to this device, you have a +1 bonus to Intelligence saving throws. The first time you attune to the chronolometer, you choose one language you don’t know. You subsequently know

that language while attuned to the device. Time Bandit. At the start of your turn, roll a d6 (no action required). On a 1–3, you slow down time, gaining an additional action on your turn and

High Fae Impostor

Monsters Monstrous Compendium Vol. 4: Eldraine Creatures

transformation ends if the high fae is reduced to 0 hit points, uses this bonus action again, or uses a bonus action to revert to its true form.

Enucleator Modifications

Equipment

Lord Syuul;Lord Syuul's psionic enucleator can be used to modify the body of any creature inside its tank. The device must be operated by another creature who can manifest a psionic power or who has

proficiency in Arcana. To complete a body modification, the subject must remain inside the tank while the operator touches the metal orbs outside the enucleator for 1 hour. If this work is interrupted

Slow Legacy

Spells Basic Rules (2014)

target's speed is halved, it takes a −2 penalty to AC and Dexterity saving throws, and it can't use reactions. On its turn, it can use either an action or a bonus action, not both. Regardless of

an 11 or higher, the spell doesn't take effect until the creature's next turn, and the creature must use its action on that turn to complete the spell. If it can't, the spell is wasted. A creature

Girallon

Monsters Mordenkainen Presents: Monsters of the Multiverse

keep a girallon must always be wary, however, because the creature could revert to its predatory nature at any time.Aggressive. As a bonus action, the girallon can move up to its speed toward a hostile creature that it can see.

Far Gear

Magic Items Acquisitions Incorporated

While attuned to this device, you have a +1 bonus to Charisma saving throws, and you have advantage on Charisma (Intimidation) checks. Aberrant Ally. You can conjure an aberrant creature from the

Vampire Warrior Legacy

Monsters Monster Manual (2014)

falling unconscious, provided that it isn't in sunlight or running water. If it can't transform, it is destroyed. While it has 0 hit points in mist form, it can't revert to its vampire form, and it must

or until the vampire is destroyed, is on a different plane of existence than the target, or takes a bonus action to end the effect. Children of the Night (1/Day). The vampire magically calls 2d4

Create Undead Legacy

Spells Basic Rules (2014)

creatures.) As a bonus action on each of your turns, you can mentally command any creature you animated with this spell if the creature is within 120 feet of you (if you control multiple creatures, you

follow it until its task is complete. The creature is under your control for 24 hours, after which it stops obeying any command you have given it. To maintain control of the creature for another 24

Warrior's Passkey

Magic Items The Book of Many Things

1d10 force damage. The item remains in its sword form until it leaves your grasp or you use another bonus action to revert it to its key form. If you end your attunement to the item while it’s in its sword form, it automatically reverts to its key form.

use a bonus action to transform it into a magic longsword. You are considered proficient with the sword, and you have a +1 bonus to attack and damage rolls made with it. On a hit, the sword deals

Wheel of Stars

Magic Items Acquisitions Incorporated

While attuned to this device, you have a +1 bonus to Wisdom saving throws, and you can use an action to cast the dancing lights, guidance, or message cantrips. Portent of the Stars. As a reaction

Starlight Apparition

Monsters Spelljammer: Adventures in Space

until the body drops to 0 hit points, the apparition ends it as a bonus action, the body leaves the Astral Plane, or the apparition is forced out by an effect like the dispel evil and good spell. When

spectral copy of itself across a vast distance with the help of a deity or another powerful celestial entity. The apparition lasts only as long as its services are needed to complete the task at hand

Animate Dead Legacy

Spells Basic Rules (2014)

creature. The target becomes a skeleton if you chose bones or a zombie if you chose a corpse (the GM has the creature's game statistics). On each of your turns, you can use a bonus action to mentally

issue no commands, the creature only defends itself against hostile creatures. Once given an order, the creature continues to follow it until its task is complete. The creature is under your control

Rod of Lordly Might Legacy

Magic Items Basic Rules (2014)

This rod has a flanged head, and it functions as a magic mace that grants a +3 bonus to attack and damage rolls made with it. The rod has properties associated with six different buttons that are set

in a row along the haft. It has three other properties as well, detailed below. Six Buttons. You can press one of the rod's six buttons as a bonus action. A button's effect lasts until you push a

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