based both down construct reaction

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

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

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

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

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.

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

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

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

Duergar Hammerer

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

duergar’s pain into energy that powers the device, which is typically used to dig tunnels and repel invaders. Duergar Hammerer Medium construct, lawful evil Armor Class 17 (natural armor) Hit Points 33

the hammerer can respond by using its Multiattack with its reaction. Siege Monster. The hammerer deals double damage to objects and structures. Actions Multiattack. The hammerer makes two

Group Attacks

Compendium - Sources->Dungeons & Dragons->Flee, Mortals! Rule Primer

the minions into multiple groups based on the type of cover or concealment they have, then make a separate attack for each group. Target Response Effects If a group attack triggers a reaction or

effect. Group Opportunity Attacks If a creature provokes an opportunity attack from more than one minion of the same stat block at a time and those minions have a melee group attack action, the minions can each use their reaction to join a group attack as an opportunity attack.

Blade Lieutenant

Compendium - Sources->Dungeons & Dragons->Vecna: Eve of Ruin

Construct (Warforged), Typically Lawful Evil Armor Class 16 (natural armor) Hit Points 153 (18d8 + 72) Speed 30 ft. STR 18 (+4) DEX 13 (+1) CON 19 (+4) INT 14 (+2) WIS 14 (+2

target can see or hear the lieutenant, the target can make one melee attack using its reaction, if available, and has advantage on the attack roll. Rally the Troops (1/Day). The lieutenant ends the

Shifter Traits

Compendium - Sources->Dungeons & Dragons->Monsters of the Multiverse

shift a number of times equal to your proficiency bonus, and you regain all expended uses when you finish a long rest. Whenever you shift, you gain an additional benefit based on one of the following

, instead of the bludgeoning damage normal for an unarmed strike. Swiftstride. While shifted, your walking speed increases by 10 feet. Additionally, you can move up to 10 feet as a reaction when a creature

Orb of the Stein Rune

Compendium - Sources->Dungeons & Dragons->Storm King's Thunder

the chosen 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.

4. Mosaic Chamber

Compendium - Sources->Dungeons & Dragons->Tyranny of Dragons

to attack in melee until it can breathe again. CUSTOMIZATION: ANIMATED TILE CREATURE An animated tile creature acts like the creature it resembles, except it is a construct that doesn’t breathe

collected and kept separate from the rest of the creature’s tiles. A tile creature gains the following reaction. Narrow Dodge. When targeted by a melee attack, the tile creature can take a reaction

Lynx Creatlach

Compendium - Sources->Dungeons & Dragons->Infernal Machine Rebuild

artists or subjects, however, Lynx describes each painting based on where she stole it from. Servants. The house is also occupied by a dozen servants—all cultists of Zariel disguised in stolen livery

Infernal Machine and installed it in a magical construct resembling a silvery skeleton with decorative wings, nicknamed Eludecia. (If you connect this adventure to Lost Laboratory of Kwalish, the construct

Homunculus Servant

Compendium - Sources->Dungeons & Dragons->Wayfinder's Guide to Eberron

stat block. In combat, the homunculus shares your initiative count, but it takes its turn immediately after yours. It can move and use its reaction on its own, but the only action it takes on its turn

points if the mending spell is cast on it. If it dies, it vanishes, leaving its heart in its space. Homunculus Servant Tiny construct, neutral Armor Class 13 (natural armor) Hit Points equal the

Homunculus Servant

Compendium - Sources->Dungeons & Dragons->Eberron: Rising from the Last War

bonus (PB) in several places. In combat, the homunculus shares your initiative count, but it takes its turn immediately after yours. It can move and use its reaction on its own, but the only action it

its heart in its space. Homunculus Servant Tiny construct Armor Class 13 (natural armor) Hit Points 1 + your Intelligence modifier + your artificer level (the homunculus has a number of Hit Dice

Homunculus Servant (p. 62)

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

changed to read as follows: “In combat, the homunculus shares your initiative count, but it takes its turn immediately after yours. It can move and use its reaction on its own, but the only action it takes

heart in its space.” The homunculus servant’s stat block has been replaced with the stat block presented on this page. Homunculus Servant Tiny construct Armor Class 13 (natural armor) Hit Points 1

4. Mosaic Chamber

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

to attack in melee until it can breathe again. CUSTOMIZATION: ANIMATED TILE CREATURE An animated tile creature acts like the creature it resembles, except it is a construct that has no need to

tiles are collected and kept separate from the rest of the creature’s tiles. A tile creature gains the following reaction. Narrow Dodge. When targeted by a melee attack, the tile creature can take a

Duergar Xarrorn

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

Duergar Xarrorn The xarrorn are specialists who construct weapons using a mixture of alchemy and psionics. Duergar Xarrorn Medium humanoid (dwarf), lawful evil Armor Class 18 (plate mail) Hit

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

Homunculus Servant

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

bonus (PB) in several places. In combat, the homunculus shares your initiative count, but it takes its turn immediately after yours. It can move and use its reaction on its own, but the only action it

its heart in its space. Homunculus Servant Tiny construct Armor Class 13 (natural armor) Hit Points 1 + your Intelligence modifier + your artificer level (the homunculus has a number of Hit Dice

Battle Smith

Compendium - Sources->Dungeons & Dragons->Eberron: Rising from the Last War

initiative count, but it takes its turn immediately after yours. It can move and use its reaction on its own, but the only action it takes on its turn is the Dodge action, unless you take a bonus action on

you have smith’s tools with you. If you already have a defender from this feature, the first one immediately perishes. The defender also perishes if you die. Steel Defender Medium construct Armor

D&D Beyond

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