before being drops change reaction

Rope of Entanglement

Magic Items Dungeon Master’s Guide

a Reaction to command the rope to coil up in your hand; otherwise, the rope coils up in the target’s space. The rope has AC 20, HP 20, and Immunity to Poison and Psychic damage. It regains 1

Hit Point every 5 minutes as long as it has at least 1 Hit Point. If the rope drops to 0 Hit Points, it is destroyed.

Find Familiar

Spells Player’s Handbook

touch, your familiar can deliver the touch. Your familiar must be within 100 feet of you, and it must take a Reaction to deliver the touch when you cast the spell. Combat. The familiar is an ally to

drops to 0 Hit Points, it disappears. It reappears after you cast this spell again. As a Magic action, you can temporarily dismiss the familiar to a pocket dimension. Alternatively, you can dismiss it

Boon of Energy Resistance

Feats Player’s Handbook

Resistance to two of the following damage types of your choice: Acid, Cold, Fire, Lightning, Necrotic, Poison, Psychic, Radiant, or Thunder. Whenever you finish a Long Rest, you can change your choices

. Energy Redirection. When you take damage of one of the types chosen for the Energy Resistances benefit, you can take a Reaction to direct damage of the same type toward another creature you can see

Arch-hag

Monsters Monster Manual

spells and other magical effects. Spiteful Escape. When the hag drops to 0 Hit Points, it dies only if it is within 30 feet of its anathema (a thing the DM chooses as the hag’s most hated thing

). Otherwise, the hag drops to 1 Hit Point and teleports to a harmless demiplane, and it can’t return to the plane it left for 2d6;{"diceNotation":"2d6", "rollType":"roll", "rollAction":"Spiteful

Brooch of the Elements

Magic Items Netheril’s Fall

The central jewel of this butterfly-shaped brooch swirls with multicolored iridescence. The brooch has 3 charges and regains all expended charges daily at dawn. As a Reaction when a creature you can

see within 60 feet of you hits a target with an attack roll and deals damage, you can expend 1 charge and change one damage type the attack deals to one of the following damage types: Acid, Cold, Fire, Lightning, Poison, or Thunder.

Werewyvern

Monsters Forgotten Realms: Adventures in Faerûn

following effect. Constitution Saving Throw: DC 16. Failure: The target is cursed. If the cursed target drops to 0 Hit Points, it instead becomes a Werewyvern under the DM’s control and has 20

Hit Points. Success: The target is immune to this werewyvern’s curse for 24 hours.Among the rarest of were-creatures, werewyverns change from their humanoid forms into lean wyverns or into

Deck of Oracles

Magic Items The Book of Many Things

The illustrations on this deck of oracle cards move or change subtly when viewed indirectly. When you finish a long rest, you can spend 10 minutes consulting the cards for an omen of the coming day

reaction to discard the d20 roll; the creature must use the number you rolled in place of its roll. Additionally, while holding the cards, you can cast Divination from them. Once this property is used, it can’t be used again until the next dawn.

Sanctum Amulet

Magic Items Bigby Presents: Glory of the Giants

taking damage, you can use your reaction to invoke the item’s rune, causing the pendant to flash with pale light. The creature then instead drops to 1 hit point. Once the rune has been invoked, it can’t be invoked again until the next dawn.

Shemshime

Monsters Candlekeep Mysteries

Crushing End. If damage reduces Shemshime to 0 hit points, Shemshime instead drops to 1 hit point unless the damage is the result of Shemshime being crushed by an object weighing at least 1,000

":"damage","rollAction":"Whispers of Violence","rollDamageType":"psychic"} psychic damage and must use its reaction to make a melee weapon attack against one creature it can reach (Shemshime’s choice

Constructed Commoner

Monsters Candlekeep Mysteries

Unusual Nature. The commoner doesn’t require air, food, drink, or sleep, and it gains no benefit from finishing a short or long rest. When it drops to 0 hit points, it becomes a lifeless

notices that if the villagers are asked about anything outside Wisteria Vale or their individual talents, they quickly change subjects to small talk about the weather or gossip, and always in Common

Caradoc

Monsters Dragonlance: Shadow of the Dragon Queen

drops to 0 hit points, Caradoc ends it as a bonus action, or he is turned or forced out by an effect like the dispel evil and good spell. When the possession ends, Caradoc reappears in an unoccupied

himself. The target must succeed on a DC 15 Wisdom saving throw, or the target must immediately use its reaction to make a melee attack against another creature of Caradoc’s choice (wasting its reaction if there are no other creatures within reach).

Quandrix Professor of Theory

Monsters Strixhaven: A Curriculum of Chaos

professor until the start of the professor’s next turn. The charmed creature must immediately use its reaction, if available, to move up its speed toward another creature of the professor&rsquo

interacts with the world can change the world. They impress upon their students to use magic as a tool to shape the overall experience of reality, and in turn make the world a better place. Quandrix

Find Familiar Legacy

Spells Basic Rules (2014)

. When the familiar drops to 0 hit points, it disappears, leaving behind no physical form. It reappears after you cast this spell again. As an action, you can temporarily dismiss the familiar to a pocket

drops to 0 hit points or disappears into the pocket dimension, it leaves behind in its space anything it was wearing or carrying. While your familiar is within 100 feet of you, you can communicate

Ooze Master

Monsters Tales from the Yawning Portal

penalty drops to −5, the weapon is destroyed. Nonmagical ammunition that hits the Ooze Master is destroyed after dealing damage. The Ooze Master can eat through 2-inch-thick, nonmagical wood or metal in

30 feet of it, the Ooze Master can use a reaction to divert the attack if another creature is within the attack's range. The attacker must make a DC 15 Wisdom saving throw. On a failed save, the

Murder Comet

Monsters Spelljammer: Adventures in Space

Explode. When the comet drops to 0 hit points, it explodes in a 20-foot-radius sphere centered on itself. Each creature in the sphere must make a DC 16 Dexterity saving throw, taking 28 (8d6

Wildspace without need for air, sleep, or sustenance. The murder comet’s face takes on the appearance of its creator’s, and its statistics change as follows: Replace the comet’s

Duplicitous Manuscript

Magic Items Tasha’s Cauldron of Everything

To you, this book is a magical spellbook. To anyone else, the book appears to be a volume of verbose romance fiction. As an action, you can change the book’s appearance and alter the plot of

throw against an illusion spell you cast, you can use your reaction and expend 1 charge to impose disadvantage on the roll.

Werevulture

Monsters The Book of Many Things

targeted by the Remove Curse spell or a similar effect. If the cursed target drops to 0 hit points, it becomes a werevulture under the DM’s control and regains 10 hit points. Talon. Melee Weapon

. Werevultures appear perfectly ordinary when in humanoid shape. But by the light of the full moon—or at other times when they give in to the curse—they change. Foul wings burst painfully

Jiangshi

Monsters Van Richten’s Guide to Ravenloft

Jiangshi Weaknesses. The jiangshi has the following flaws: Fear of Its Own Reflection. If the jiangshi sees its own reflection, it immediately uses its reaction, if available, to move as far away

the initiative order. If this wight slays a Humanoid with its Life Drain, the wight transforms into a jiangshi 5 days later. Change Shape. The jiangshi polymorphs into a Beast, a Humanoid, or an Undead

Archon of the Triumvirate

Monsters Guildmasters’ Guide to Ravnica

on a DC 18 Wisdom saving throw, or else the target drops any weapons it is holding, ends its concentration on any spells or other effects, and becomes charmed by the archon for 1 minute. The charmed

reaction to make a melee weapon attack. Detention (Costs 3 Actions). The archon targets a creature it can see within 60 feet of it. The target must succeed on a DC 18 Charisma saving throw or be

Leedara

Monsters Dragonlance: Shadow of the Dragon Queen

features, or proficiencies. The possession lasts until the body drops to 0 hit points, Leedara ends it as a bonus action, or Leedara is turned or forced out by an effect like the dispel evil and good spell

after the possession ends. Change Shape. Leedara magically assumes the appearance she had in life, and her creature type changes to Humanoid, while retaining her other game statistics. This

Yan-C-Bin

Monsters Princes of the Apocalypse

damage and is deafened until the start of Yan-C-Bin’s next turn. Change Shape. Yan-C-Bin polymorphs into a Medium humanoid. While in polymorphed form, a swirling breeze surrounds him, his eyes are

feet of him. The target must make a DC 21 Constitution saving throw. On a failed save, the target drops to 0 hit points and is dying. On a successful save, the target can’t breathe or speak

Lesser Star Spawn Emissary

Monsters Van Richten’s Guide to Ravenloft

Aberrant Rejuvenation. When the emissary drops to 0 hit points, its body melts away. A greater star spawn emissary instantly appears in an unoccupied space within 60 feet of where the lesser emissary

damage. Change Shape. The emissary polymorphs into a Small or Medium creature of its choice or back into its true form. Its statistics, other than its size, are the same in each form. Any equipment it is

Endelyn Moongrave

Monsters The Wild Beyond the Witchlight

solar eclipse or while she is within 60 feet of a symbolic representation of one. Otherwise, Endelyn disappears in a cloud of inky smoke when she drops to 0 hit points, along with anything she was

’t change it, but I will do everything in my power to forestall it.” Endelyn’s Appearance Endelyn’s emaciated form is hidden under the layers of her elaborate costume. Part dress

Knight of the Crown

Feats Dragonlance: Shadow of the Dragon Queen

. If that ally can see or hear you, they can immediately make one weapon attack as a reaction. If the attack hits, the ally can roll a d8 and add the number rolled as a bonus to the attack’s damage

. Whether a character follows this path or another, they retain what they learned as a member of an order even if they join another. Characters can change what knightly order they’re a part of, but they always have access to any Knight of Solamnia feats they’ve acquired.

Tiamat

Monsters Tyranny of Dragons

Discorporation. When Tiamat drops to 0 hit points or dies, her body is destroyed but her essence travels back to her domain in the Nine Hells, and she is unable to take physical form for a time

effects. Magic Weapons. Tiamat’s weapon attacks are magical. Multiple Heads. Tiamat can take one reaction per turn, rather than only one per round. She also has advantage on saving throws

Rak Tulkhesh

Monsters Eberron: Rising from the Last War

"} to hit, range 150/600 ft., one target. Hit: 17 (3d8 + 4);{"diceNotation":"3d8+4","rollType":"damage","rollAction":"Spawned Ranged Weapon","rollDamageType":"force"} force damage. Change Shape. Rak

). Each creature within 60 feet of Rak Tulkhesh must succeed on a DC 24 Wisdom saving throw or use its reaction to make a melee weapon attack against a random creature within reach. If no creatures

Adult Deep Dragon Legacy

Monsters Fizban's Treasury of Dragons

", "rollType":"damage", "rollAction":"Tail", "rollDamageType":"bludgeoning"} bludgeoning damage. If the target is a creature, it must succeed on a DC 17 Strength saving throw or be knocked prone. Change Shape

creature within 30 feet of it that it can see. The target must succeed on a DC 16 Wisdom saving throw or use its reaction to make a melee weapon attack against a random creature within reach. If no

Deck of Many Things Legacy

Magic Items Basic Rules (2014)

alteration, causing your alignment to change. Lawful becomes chaotic, good becomes evil, and vice versa. If you are true neutral or unaligned, this card has no effect on you. Comet. If you single

you, warning all others that you must win the battle alone. The avatar fights until you die or it drops to 0 hit points, whereupon it disappears. If anyone tries to help you, the helper summons its

Auril (First Form)

Monsters Icewind Dale: Rime of the Frostmaiden

Divine Being. Auril can’t be surprised and can’t be changed into another form against her will. Divine Rejuvenation. When Auril drops to 0 hit points, her body turns to slush and melts

away. Auril instantly reappears in her Auril (Second Form);second form, in an unoccupied space within 60 feet of where her first form disappeared. Her initiative count doesn’t change. Innate

Yuan-ti Pureblood Legacy

Species Volo's Guide to Monsters

serpent gods taught the humans how to take on aspects of the snake, but the cost of the change was high, requiring many sacrifices for each person to be transformed. Entire households of slaves in

they don’t believe they have a reasonable chance of success. This reaction isn’t out of cowardice, but practicality—yuan-ti value their own lives much too highly to risk them when the

I have a readied action. Can I stop readying to take an Opportunity Attack? Or does the Ready action take a full-round commitment?

Compendium - Sources->Dungeons & Dragons->Sage Advice & Errata

continues, you can decide to take this readied Reaction—or, if plans change, you can take any other Reaction you might have access to, such as an Opportunity Attack. But remember that you have only one

commitment. By taking the Ready action, you’re giving your character access to a tailor-made Reaction to use in a given circumstance. However, you’re not bound to take that readied Reaction. As combat

Ancient Deep Dragon Legacy

Monsters Fizban's Treasury of Dragons

. Change Shape. The dragon magically transforms into any creature that is Medium or Small, while retaining its game statistics (other than its size). This transformation ends if the dragon is reduced to 0

around a creature within 30 feet of it that it can see. The target must succeed on a DC 19 Wisdom saving throw or use its reaction to make a melee weapon attack against a random creature within reach. If

Deck of Several Things

Magic Items Lost Laboratory of Kwalish

spades Rogue Two of spades Balance Joker (with TM) Fool Joker (without TM) Jester Balance. Your mind suffers a wrenching alteration, causing your alignment to change for

drops to 0 hit points, whereupon it disappears. If anyone tries to help you, the helper summons its own avatar of death. A creature slain by an avatar of death can’t be restored to life. Star

Auril (Second Form)

Monsters Icewind Dale: Rime of the Frostmaiden

Divine Being. Auril can’t be surprised and can’t be changed into another form against her will. Divine Rejuvenation. When Auril drops to 0 hit points, her body collapses into shards of

ice, whereupon Auril instantly reappears in her Auril (Third Form);third form, in an unoccupied space within 60 feet of where her second form was destroyed. Her initiative count doesn’t change

Beginning a Chase

Compendium - Sources->Dungeons & Dragons->Dungeon Master’s Guide (2014)

action and move on its turn. The chase ends when one side drops out or the quarry escapes. When a chase begins, determine the starting distance between the quarry and the pursuers. Track the distance

between them, and designate the pursuer closest to the quarry as the lead. The lead pursuer might change from round to round.

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