based before driven construct reaction

Vampire Umbral Lord

Monsters Monster Manual

vampire takes 20 Acid damage if it ends its turn in running water.Stake to the Heart. If a weapon that deals Piercing damage is driven into the vampire’s heart while the vampire has the

, one creature the vampire can see within 30 feet that isn’t a Construct or an Undead. Failure: 14 (4d6);{"diceNotation":"4d6", "rollType":"damage", "rollAction":"Sanguine Drain

Lyre of Building

Magic Items Tasha’s Cauldron of Everything

While holding this lyre, you can cast mending as an action. You can also play the lyre as a reaction when an object or a structure you can see within 300 feet of you takes damage, causing it to be

immune to that damage and any further damage of the same type until the start of your next turn. In addition, you can play the lyre as an action to cast fabricate, move earth, passwall, or summon construct (appears in this book), and that spell can’t be cast from it again until the next dawn.

Narycrash

Equipment

This backpack-sized device holds a balloon-based parachute. If you fall while wearing this device, you can use your reaction to deploy the parachute. Once deployed, the parachute rapidly inflates

Duergar Kavalrachni Legacy

Monsters Out of the Abyss

Cavalry Training. When the duergar hits a target with a melee attack while mounted on a female steeder, the steeder can make a melee attack against the same target as a reaction. Duergar Resilience

duergar magically increases in size, along with anything it is wearing or carrying. While enlarged, the duergar is Large, doubles its damage dice on Strength-based weapon attacks (included in the attacks

Ygorl, Lord of Entropy

Monsters Mordenkainen's Fiendish Folio Volume 1

Entropic Aura. Each creature that is not a construct or undead that ends its turn within 15 feet of Ygorl takes 14 (4d6);{"diceNotation":"4d6","rollType":"damage","rollAction":"Entropic Aura

Teleport action. Call the Void (Costs 3 Actions). Each creature that is not a construct or undead within 30 feet of Ygorl must make a DC 22 Constitution saving throw against the lord of entropy’s

Tile Chimera

Monsters Tyranny of Dragons

one.Narrow Dodge. When targeted by a melee attack, the tile chimera can take a reaction to turn its narrowest aspect toward the attacker. The attacker has disadvantage on the attack roll.A chimera is a

. The tile chimera acts as a normal chimera magically animated, except it is a construct that doesn’t breathe, drink, eat, or sleep. It makes a clacking noise as it moves, and when injured, it

Duergar Warlord Legacy

Monsters Mordenkainen’s Tome of Foes

damage while enlarged. Call to Attack. Up to three allied duergar within 120 feet of this duergar that can hear it can each use their reaction to make one weapon attack. Enlarge (Recharges after a Short

or Long Rest). For 1 minute, the duergar magically increases in size, along with anything it is wearing or carrying. While enlarged, the duergar is Large, doubles its damage dice on Strength-based

Reigar

Monsters Spelljammer: Adventures in Space

duplicate that looks just like the reigar. The duplicate obeys the reigar’s commands and uses the reigar’s statistics, except it is an unaligned Construct that doesn’t have a talarith of its

land. When the endless battles there grew tiresome, some reigar ventured to the Astral Sea and Wildspace in search of glory. Many are driven by artistic pursuits, but each reigar has their own notion

Allip

Monsters Mordenkainen Presents: Monsters of the Multiverse

":"2d8+3", "rollType":"damage", "rollAction":"Whispers of Compulsion", "rollDamageType":"psychic"} psychic damage and must use its reaction to make a melee weapon attack against one creature of the

remains hidden, its victim is gradually overcome by frantic energy. A scholar, driven by sudden insights to work night and day, produces reams of text with little memory of exactly what the documents

Fog Giant

Monsters Mordenkainen's Fiendish Folio Volume 1

shouts bloodcurdling threats at the creatures that serve it. Each medium or smaller ally of the giant within 120 feet of it that can see or hear it can use its reaction to make a melee attack.The place of

cloud giants in the ordning—the set of values and expectations that determines their rank in giant society—is driven by wealth. Those cloud giants foolish or unlucky enough to have their

Orb of the Stein Rune

Magic Items Storm King's Thunder

item, which gains a benefit based on its form: Shield. The shield is now a rare magic item that requires attunement. While you wield it, you have resistance to all damage dealt by ranged weapon

attacks. Boots. The pair of boots is now an uncommon magic item that requires attunement. While you wear the boots, you have advantage on Strength saving throws, and you can use your reaction to avoid being knocked prone.

Duergar Xarrorn

Monsters Mordenkainen Presents: Monsters of the Multiverse

carries is invisible with it.Xarrorn are specialists who construct weapons using a mixture of alchemy and psionics. Duergar Duergar are dwarves of the deep reaches of the Underdark and other sunless

in size, along with anything it is wearing or carrying. While enlarged, the duergar is Large, doubles its damage dice on Strength-based weapon attacks (included in the attacks), and makes Strength

Shapechange Legacy

Spells Basic Rules (2014)

You assume the form of a different creature for the duration. The new form can be of any creature with a challenge rating equal to your level or lower. The creature can't be a construct or an undead

of equipment, based on the creature's shape and size. Your equipment doesn't change shape or size to match the new form, and any equipment that the new form can't wear must either fall to the ground

Obzedat Ghost

Monsters Guildmasters’ Guide to Ravnica

Council of Five. The ghost has a trait based on who it is, as shown below: Enezesku: Enfeebling Ray. Enezesku’s Innate Spellcasting trait includes ray of enfeeblement, which he can cast at

Obzedat function as a unit, driven by their shared desire to accumulate ever more wealth for the guild. In times of disagreement, the eldest of the council exerts his seniority to bend the council to

Occultant Abacus

Magic Items Acquisitions Incorporated

. The difference between the index finger and the middle finger. The elasticity of the ear lobe. 6 You take a long, careful look, and then decide based on which fellow franchisee has been nice to

long rest. Bead of Instant Karma At rank 3, one of the beads on your occultant abacus channels the power of instant karma, turning the occultant abacus into a rare magic item. As a reaction, you can

Staff of the Magi Legacy

Magic Items Basic Rules (2014)

holding the staff, you have advantage on saving throws against spells. In addition, you can use your reaction when another creature casts a spell that targets only you. If you do, the staff absorbs the

amount of damage based on how far away it is from the point of origin, as shown in the following table. On a successful save, a creature takes half as much damage. Distance from Origin Damage

Demogorgon

Monsters Mordenkainen Presents: Monsters of the Multiverse

its action, reaction, and movement. Spellcasting. Demogorgon casts one of the following spells, requiring no material components and using Charisma as the spellcasting ability (spell save DC 23

Demogorgon’s followers are typically lone killers driven by the whispering voice of their master. His most blessed followers gain the Two Minds of Chaos trait. Two Minds of Chaos. This creature

Duergar Warlord

Monsters Mordenkainen Presents: Monsters of the Multiverse

use their reaction to make one weapon attack. Invisibility (Recharge 4–6);{"diceNotation":"1d6", "rollType":"recharge", "rollAction":"Invisibility"}. The duergar magically turns invisible for up to 1

Rest). For 1 minute, the duergar magically increases in size, along with anything it is wearing or carrying. While enlarged, the duergar is Large, doubles its damage dice on Strength-based weapon

Pennant of the Vind Rune

Magic Items Storm King's Thunder

another means of staying aloft. Comforting Wind. You can’t suffocate. Wind’s Grasp. As a reaction when you fall, you can cause yourself to take no damage from the fall. Once you use this

appears in silver on the chosen item, which gains a benefit based on its form: Armor. The armor is now an uncommon magic item that requires attunement. You gain a bonus to speed of 5 feet while you

Animate Objects Legacy

Spells Basic Rules (2014)

12 +5 to hit, 2d6 + 1 damage Large 50 10 14 10 +6 to hit, 2d10 + 2 damage Huge 80 10 18 6 +8 to hit, 2d12 + 4 damage An animated object is a construct with AC, hit points

bonus and bludgeoning damage determined by its size. The GM might rule that a specific object inflicts slashing or piercing damage based on its form. At Higher Levels. If you cast this spell using a spell slot of 6th level or higher, you can animate two additional objects for each slot level above 5th.

Urchin - Baldur's Gate

Backgrounds Baldur’s Gate: Descent into Avernus

their torch-based code. From the lighting, placement, and type of torch arranged on or near a structure, you can gather a great deal of information about those who live or do business there, particularly

of desperate poverty, for good and for ill. They tend to be driven either by a commitment to the people with whom they shared life on the street or by a burning desire to find a better life &mdash

Tabaxi Legacy

Species Volo's Guide to Monsters

, wandering tabaxi are catlike humanoids driven by curiosity to collect interesting artifacts, gather tales and stories, and lay eyes on all the world’s wonders. Ultimate travelers, the inquisitive

on a particularly interesting item when an owner refuses to sell or trade it. Tabaxi Names Each tabaxi has a single name, determined by clan and based on a complex formula that involves astrology

Hobgoblin

Species Mordenkainen Presents: Monsters of the Multiverse

Hobgoblins trace their origins to the ancient courts of the Feywild, where they first appeared with their goblin and bugbear kin. Many of them were driven from the Feywild by the conquering god

in alphabetical order: Aberration, Beast, Celestial, Construct, Dragon, Elemental, Fey, Fiend, Giant, Humanoid, Monstrosity, Ooze, Plant, Undead. These types don’t have rules themselves, but

Half-Elf Legacy

Species Basic Rules (2014)

, wandering the wilds as trappers, foresters, hunters, or adventurers and visiting civilization only rarely. Like elves, they are driven by the wanderlust that comes of their longevity. Others, in

-Elf Variants Some half-elves in Faerûn have a racial trait in place of the Skill Versatility trait. If your DM allows it, your half-elf character can forgo Skill Versatility and instead take the elf trait Keen Senses or a trait based on your elf parentage:

Yuan-ti Pureblood Legacy

Species Volo's Guide to Monsters

with that of snakes, producing a caste-based society of hybrids in which the most snakelike are the leaders and the most humanlike are spies and agents in foreign lands. Humans Transformed The

caste system based on how complete a person’s transformation was. The vast majority of yuan-ti fall into three categories — abominations, malisons, and purebloods — while the mutated

Lizardfolk Legacy

Species Volo's Guide to Monsters

have more in common with iguanas or dragons than they do with humans, dwarves, or elves. Lizardfolk possess an alien and inscrutable mindset, their desires and thoughts driven by a different set of

rage against their enemies. They simply observe and react as a situation warrants. Lizardfolk lack meaningful emotional ties to the past. They assess situations based on their current and future

Other Demons

Compendium - Sources->Dungeons & Dragons->Mordenkainen's Tome of Foes

Other Demons Demons of sufficient cunning and power can bestow boons, using the boons’ recipients as pawns. A demon can grant a special trait based on its type, as shown below. Balor Fiery Soul. This

can perfectly recall any path it has traveled. Marilith Serpentine Reaction. This creature can take an extra reaction each round, but this reaction can be used only to make an opportunity attack. Nalfeshnee Guarded Mind. This creature is immune to the frightened condition.

Narycrash

Compendium - Sources->Dungeons & Dragons->Dragonlance: Shadow of the Dragon Queen

Narycrash This backpack-sized device holds a balloon-based parachute. If you fall while wearing this device, you can use your reaction to deploy the parachute. Once deployed, the parachute rapidly

Greyhawk

Compendium - Sources->Dungeons & Dragons->Princes of the Apocalypse

as the elemental prophets, the cults’ use of devastation orbs, and the search for the missing delegation make this a much more far-reaching and event-driven adventure than the original site-based campaign.

Lyre of Building

Compendium - Sources->Dungeons & Dragons->Tasha’s Cauldron of Everything

Lyre of Building Wondrous item, rare (requires attunement by a bard) While holding this lyre, you can cast mending as an action. You can also play the lyre as a reaction when an object or a structure

as an action to cast fabricate, move earth, passwall, or summon construct (appears in this book), and that spell can’t be cast from it again until the next dawn.

Mighty Servant of Leuk-o

Magic Items Tasha’s Cauldron of Everything

Named for the warlord who infamously employed it, the Mighty Servant of Leuk-o is a fantastically powerful, 10-foot-tall machine that turns into an animate construct when piloted. Crafted of a

action, you can command the servant to take one of the actions in its stat block or some other action. When a creature provokes an opportunity attack from the servant, you can use your reaction to command

Duergar Screamer

Compendium - Sources->Dungeons & Dragons->Mordenkainen's Tome of Foes

Duergar Screamer A duergar screamer is a construct that uses sonic energy to grind rock into dust. Duergar accused of spreading gossip or plotting against their superiors are trapped within one of

these devices, their beards shorn and their ongoing agony channeled into psionic energy that powers the screamer. Duergar Screamer Medium construct, lawful evil Armor Class 15 (natural armor) Hit

Chapter 4: Destruction's Light

Compendium - Sources->Dungeons & Dragons->Icewind Dale: Rime of the Frostmaiden

Chapter 4: Destruction’s Light Xardorok Sunblight’s merciless construct slices through Ten-Towns with its radiant beam. Ten-Towns won’t survive the attack of Xardorok’s dragon without the characters

determines how many Ten-Towns settlements are victimized before the characters can intervene, based on the dragon’s timeline. If the characters forgo the attack on Xardorok’s fortress and waste no time

Steel Defender (p. 61)

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

. Repair (3/Day). The magical mechanisms inside the defender restore 2d8 + PB hit points to itself or to one construct or object within 5 feet of it. Reaction Deflect Attack. The defender imposes

reaction on its own, but the only action it takes on its turn is the Dodge action, unless you take a bonus action on your turn to command it to take another action. That action can be one in its stat

Developments

Compendium - Sources->Dungeons & Dragons->Rise of Tiamat

Developments If the characters defeat Arauthator, the reactions of Oyaviggaton’s other inhabitants are dependent on whether the dragon is killed or driven off. If Arauthator is killed, the ice toads

’ reaction will likely be influenced by whatever interaction the characters had with them earlier. The trolls might flee without a word, or they might decide they like Oyaviggaton and make it their

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