both bonus diffusing chance reactions

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

Swarm of Dretches

Monsters Monster Manual

its next turn. While Poisoned, the target can take either an action or a Bonus Action on its turn, not both, and it can’t take Reactions. Swarm. The swarm can occupy another creature’s

Young Copper Dragon

Monsters Monster Manual

;t take Reactions; its Speed is halved; and it can take either an action or a Bonus Action on its turn, not both. This effect lasts until the end of its next turn.Acid

Copper Dragon Wyrmling

Monsters Monster Manual

. Constitution Saving Throw: DC 11, each creature in a 15-foot Cone. Failure: The target can’t take Reactions; its Speed is halved; and it can take either an action or a Bonus Action on its turn, not both. This effect lasts until the end of its next turn.Acid

Umber Hulk

Monsters Monster Manual

. 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

determine what it does on its next turn: 1–4. The target does nothing.5–6. The target takes no action or Bonus Action and uses all its movement to move in a random direction.7–8. The

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.

Ancient Copper Dragon

Monsters Monster Manual

. Constitution Saving Throw: DC 22, each creature in a 90-foot Cone. Failure: The target can’t take Reactions; its Speed is halved; and it can take either an action or a Bonus Action on its turn

Adult Copper Dragon

Monsters Monster Manual

. Constitution Saving Throw: DC 18, each creature in a 60-foot Cone. Failure: The target can’t take Reactions; its Speed is halved; and it can take either an action or a Bonus Action on its turn

Confusion

Spells Player’s Handbook

Each creature in a 10-foot-radius Sphere centered on a point you choose within range must succeed on a Wisdom saving throw, or that target can’t take Bonus Actions or Reactions and must roll

Summon Construct

Spells Player’s Handbook

you know CR None (XP 0; PB equals your Proficiency Bonus) Traits Heated Body (Metal Only). A creature that hits the spirit with a melee attack or that starts its turn in a grapple with the spirit

Multiattack. The spirit makes a number of Slam attacks equal to half this spell’s level (round down). Slam. Melee Attack Roll: Bonus equals your spell attack modifier, reach 5 ft. Hit: 1d8 + 4 + the

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

Beholder

Monsters Monster Manual

", "rollDamageType":"Necrotic"} Necrotic damage. Until the end of the target’s next turn, the target’s Speed is halved; the target can’t take Reactions; and it can take either an action or a

Bonus Action on its turn, not both. Success: Half damage only. 5: Enervation Ray. Constitution Saving Throw: DC 16. Failure: 13 (3d8);{"diceNotation":"3d8", "rollType":"damage", "rollAction

Death Tyrant

Monsters Monster Manual

", "rollAction":"Slowing ray", "rollDamageType":"Necrotic"} Necrotic damage. Until the end of the target’s next turn, the target can’t take Reactions; its Speed is halved; and it can take

either an action or a Bonus Action on its turn, not both. Success: Half damage only. Enervation Ray. Constitution Saving Throw: DC 17. Failure: 16 (3d10);{"diceNotation":"3d10", "rollType":"damage

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

Spirit Dragon Wyrmling

Monsters Forgotten Realms: Adventures in Faerûn

by this breath in a 15-foot Cone. Failure: The target’s Speed is halved, it can’t take Reactions, and it can take either an action or a Bonus Action on its turn, not both. It repeats the

Young Spirit Dragon

Monsters Forgotten Realms: Adventures in Faerûn

’t take Reactions, and it can take either an action or a Bonus Action on its turn, not both. It repeats the save at the end of each of its turns, ending the effect on itself on a success. After 1

Adult Spirit Dragon

Monsters Forgotten Realms: Adventures in Faerûn

. Wisdom Saving Throw: DC 18, each creature that isn’t currently affected by this breath in a 60-foot Cone. Failure: The target’s Speed is halved, it can’t take Reactions, and it can

take either an action or a Bonus Action on its turn, not both. It repeats the save at the end of each of its turns, ending the effect on itself on a success. After 1 minute, it succeeds

Ancient Spirit Dragon

Monsters Forgotten Realms: Adventures in Faerûn

is halved, it can’t take Reactions, and it can take either an action or a Bonus Action on its turn, not both. It repeats the save at the end of each of its turns, ending the effect on itself on

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

Quenthel Baenre

Monsters Out of the Abyss

three tentacles, it must make a DC 15 Constitution saving throw. On a failure, the creature's speed is halved, it has disadvantage on Dexterity saving throws, and it can't use reactions for 1 minute

. 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

Tortle Druid

Monsters Mordenkainen Presents: Monsters of the Multiverse

’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

;{"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

Copper Dragon Wyrmling Legacy

Monsters Basic Rules (2014)

-foot cone. Each creature in that area must succeed on a DC 11 Constitution saving throw. On a failed save, the creature can't use reactions, its speed is halved, and it can't make more than one attack

on its turn. In addition, the creature can use either an action or a bonus action on its turn, but not both. These effects last for 1 minute. The creature can repeat the saving throw at the end of each of its turns, ending the effect on itself with a successful save.Acid

Tentacle Rod Legacy

Magic Items Dungeon Master’s Guide (2014)

of you. Each tentacle makes a melee attack roll with a +9 bonus. On a hit, the tentacle deals 1d6 bludgeoning damage. If you hit a target with all three tentacles, it must make a DC 15 Constitution

saving throw. On a failure, the creature's speed is halved, it has disadvantage on Dexterity saving throws, and it can't use reactions for 1 minute. Moreover, on each of its turns, it can take either

Stone Golem Legacy

Monsters Basic Rules (2014)

save, a target can't use reactions, its speed is halved, and it can't make more than one attack on its turn. In addition, the target can take either an action or a bonus action on its turn, not both

Tortle Druid Legacy

Monsters The Tortle Package

prone, its speed is 0 and can't increase, it has disadvantage on Dexterity saving throws, it can't take reactions, and the only action it can take is a bonus action to emerge.

hands. Shell Defense. The tortle withdraws into its shell. Until it emerges, it gains a +4 bonus to AC and has advantage on Strength and Constitution saving throws. While in its shell, the tortle is

Tortle Legacy

Monsters The Tortle Package

throws. While in its shell, the tortle is prone, its speed is 0 and can't increase, it has disadvantage on Dexterity saving throws, it can't take reactions, and the only action it can take is a bonus action to emerge.

Crossbow","rollDamageType":"piercing"} piercing damage. Shell Defense. The tortle withdraws into its shell. Until it emerges, it gains a +4 bonus to AC and has advantage on Strength and Constitution saving

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

Young Copper Dragon Legacy

Monsters Basic Rules (2014)

a DC 14 Constitution saving throw. On a failed save, the creature can't use reactions, its speed is halved, and it can't make more than one attack on its turn. In addition, the creature can use either

an action or a bonus action on its turn, but not both. These effects last for 1 minute. The creature can repeat the saving throw at the end of each of its turns, ending the effect on itself with a successful save.Acid

Psionic Ashenwight

Monsters Phandelver and Below: The Shattered Obelisk

. While charmed in this way, the target’s thoughts are sluggish; it can’t take reactions, its speed is halved, and it takes 9 (2d8);{"diceNotation":"2d8", "rollType":"damage", "rollAction

will: mage hand (the hand is invisible) 1/day: calm emotionsWhen an ashenwight arises near a crystal vein infused with aberrant power, or when one lingers in an area of fell magic, there is a chance

Otto

Monsters Waterdeep: Dungeon of the Mad Mage

Superior Invisibility. As a bonus action, Otto can magically turn invisible until its concentration ends (as if concentrating on a spell). Any equipment Otto wears or carries is invisible with it

minute, the target can’t take reactions and must roll a d6;{"diceNotation":"1d6","rollType":"roll","rollAction":"Euphoria Breath"} at the start of each of its turns to determine its behavior during

Krull

Monsters Baldur’s Gate: Descent into Avernus

":"damage","rollDamageType":"necrotic"} necrotic damage. Shell Defense. Krull withdraws into his shell. Until he emerges as a bonus action, he has a +4 bonus to AC and has advantage on Strength and

Constitution saving throws. While in his shell, Krull is prone, his speed is 0 and can't increase, he has disadvantage on Dexterity saving throws, he can't take reactions, and the only action he can take is to emerge from his shell.

Tortle

Monsters Mordenkainen Presents: Monsters of the Multiverse

":"Light Crossbow", "rollDamageType":"piercing"} piercing damage. Shell Defense. The tortle withdraws into its shell. Until it emerges, it gains a +4 bonus to AC and has advantage on Strength and

Constitution saving throws. While in its shell, the tortle is prone, its speed is 0 and can’t increase, it has disadvantage on Dexterity saving throws, it can’t take reactions, and the only

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

Szashune

Monsters Out of the Abyss

save, a target can't use reactions, its speed is halved, and it can't make more than one attack on its turn. In addition, the target can take either an action or a bonus action on its turn, not both

D&D Beyond

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