bonus being diffusing chance 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

Slow

Spells Player’s Handbook

target’s Speed is halved, it takes a −2 penalty to AC and Dexterity saving throws, and it can’t take Reactions. On its turns, it can take either an action or a Bonus Action, not both

, and it can make only one attack if it takes the Attack action. If it casts a spell with a Somatic component, there is a 25 percent chance the spell fails as a result of the target making the spell

Gust of Wind

Spells Player’s Handbook

wildly and has a 50 percent chance to extinguish them. As a Bonus Action on your later turns, you can change the direction in which the Line blasts from you.

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

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

Staff of Power

Magic Items Dungeon Master’s Guide

This staff has 20 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 gain a +2 bonus to Armor Class, saving

last charge, roll 1d20. On a 1, the staff retains its +2 bonus to attack rolls and damage rolls but loses all other properties. On a 20, the staff regains 1d8 + 2 charges. Retributive Strike. You

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

Staff of the Magi

Magic Items Dungeon Master’s Guide

This staff has 50 charges and can be wielded as a magic Quarterstaff that grants a +2 bonus to attack rolls and damage rolls made with it. While you hold it, you gain a +2 bonus to spell attack rolls

or against a solid surface. The staff is destroyed and releases its magic in an explosion that fills a 30-foot Emanation originating from itself. You have a 50 percent chance to instantly travel to a

Figurine of Wondrous Power

Magic Items Dungeon Master’s Guide

duration, the creature reverts to its figurine form. It reverts to a figurine early if its creature form drops to 0 Hit Points or if you take a Magic action while touching the creature to make it revert to

to 24 hours. The nightmare fights only to defend itself. Once it has been used, it can’t be used again until 5 days have passed. The figurine has a 10 percent chance each time you use it to

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

effect is immune to it for 1 minute, after which it can be affected again. The aura is inactive while you have the Incapacitated condition. You can activate or deactivate the aura as a Bonus Action

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

Gust of Wind Legacy

Spells Basic Rules (2014)

chance to extinguish them. As a bonus action on each of your turns before the spell ends, you can change the direction in which the line blasts from you.

Frost Giant Everlasting One Legacy

Monsters Volo's Guide to Monsters

Extra Heads. The giant has a 25 percent chance of having more than one head. If it has more than one, it has advantage on Wisdom (Perception) checks and on saving throws against being blinded

the start of its next turn. The giant dies only if it starts its turn with 0 hit points and doesn't regenerate. Vaprak's Rage (Recharges after a Short or Long Rest). As a bonus action, the giant can

Quenthel Baenre

Monsters Out of the Abyss

. Moreover, on each of its turns, it can take either an action or a bonus action, but not both. At the end of each of its turns, it can repeat the saving throw, ending the effect on itself on a success

. Summon Demon (1/Day). Quenthel attempts to magically summon a yochlol with a 30 percent;{"diceNotation":"1d100","rollType":"roll","rollAction":"Summon Demon Chance"} chance of success. If the attempt

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

Nycaloth (summoner variant) Legacy

Monsters Monster Manual (2014)

","rollAction":"Summon Yugoloth"} chance of summoning 1d4;{"diceNotation":"1d4","rollType":"roll"} mezzoloth;mezzoloths or one nycaloth. A summoned yugoloth appears in an unoccupied space within 60 feet

of its summoner, does as it pleases, and can’t summon other yugoloths. The summoned yugoloth remains for 1 minute, until it or its summoner dies, or until its summoner takes a bonus action to dismiss it.Acid, PoisonCold, Fire, Lightning; Bludgeoning, Piercing, and Slashing from Nonmagical Attacks

Mezzoloth (summoner variant) Legacy

Monsters Monster Manual (2014)

"} chance of summoning one mezzoloth. A summoned yugoloth appears in an unoccupied space within 60 feet of its summoner, does as it pleases (unless its summoner is an ultroloth, in which case it acts as an

ally of its summoner), and can’t summon other yugoloths. The summoned yugoloth remains for 1 minute, until it or its summoner dies, or until its summoner takes a bonus action to dismiss it.Acid, PoisonCold, Fire, Lightning; Bludgeoning, Piercing, and Slashing from Nonmagical Attacks

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.

Arcanaloth (summoner variant) Legacy

Monsters Monster Manual (2014)

percent;{"diceNotation":"1d100","rollType":"roll","rollAction":"Summon Yugoloth"} chance of summoning one arcanaloth. A summoned yugoloth appears in an unoccupied space within 60 feet of its summoner, does

as it pleases and can’t summon other yugoloths. The summoned yugoloth remains for 1 minute, until it or its summoner dies, or until its summoner takes a bonus action to dismiss it.Acid, PoisonCold, Fire, Lightning; Bludgeoning, Piercing, and Slashing from Nonmagical Attacks

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.

Ultroloth (summoner variant) Legacy

Monsters Monster Manual (2014)

ultroloth has a 50 percent;{"diceNotation":"1d100","rollType":"roll","rollAction":"Summon Yugoloth"} chance of summoning 1d6;{"diceNotation":"1d6","rollType":"roll"} mezzoloth;mezzoloths, 1d4

takes a bonus action to dismiss it.Acid, PoisonCold, Fire, Lightning; Bludgeoning, Piercing, and Slashing from Nonmagical Attacks

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

Tortle Druid

Monsters Mordenkainen Presents: Monsters of the Multiverse

;{"diceNotation":"2d6+2", "rollType":"damage", "rollAction":"Nature's Wrath (Thunder)", "rollDamageType":"thunder"}. Shell Defense. The tortle withdraws into its shell. Until it emerges, it gains a +4 bonus to

’t take reactions, and the only action it can take is a bonus action to emerge. Spellcasting. The tortle casts one of the following spells, using Wisdom as the spellcasting ability (spell save

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

Storm Giant Quintessent

Monsters Mordenkainen Presents: Monsters of the Multiverse

further use of these elemental weapons, or when the giant dies, the weapons disappear. A storm giant quintessent can revert to their true giant form temporarily and can maintain that form long enough

lanterns, have a 50 percent chance of being extinguished. Regional Effects The region containing a storm giant quintessent’s lair is warped by the giant’s presence, which creates one or more

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

Feyr

Monsters Spelljammer: Adventures in Space

feyr has two tentacles, each of which can grapple one creature. Invisibility. The feyr becomes invisible until it attacks, uses Nightmare Fuel, or uses a bonus action to become visible. Nightmare

horror that feeds quietly on strong emotions. To minimize the chance of harm to itself, it prefers to devour the nightmares of other creatures while they sleep. Feyrs shun bright light but aren

Vampire Legacy

Monsters Basic Rules (2014)

can’t revert to its vampire form, and it must reach its resting place within 2 hours or be destroyed. Once in its resting place, it reverts to its vampire form. It is then paralyzed until it

, or takes a bonus action to end the effect. Children of the Night (1/Day). The vampire magically calls 2d4;{"diceNotation":"2d4","rollType":"roll","rollAction":"Children of the Night"} swarm of bats

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