build before detect construct reactions

Banshee

Monsters Monster Manual

Detect Life. The banshee magically senses the direction of creatures up to 1 mile away that aren’t Constructs or Undead. Incorporeal Movement. The banshee can move through other creatures and

within 30 feet that can hear the wail and isn’t a Construct or an Undead. Failure: If the target has 25 Hit Points or fewer, it drops to 0 Hit Points. Otherwise, the target takes 10 (3d6

Summon Construct

Spells Player’s Handbook

You call forth the spirit of a Construct. It manifests in an unoccupied space that you can see within range and uses the Construct Spirit stat block. When you cast the spell, choose a material: Clay

slot’s level for the spell’s level in the stat block. Construct Spirit Medium Construct, Neutral AC 13 + the spell’s level HP 40 + 15 for each spell level above 4 Speed 30 ft

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

ability (spell save DC 21): At Will: Detect Magic, Mind Spike (level 5 version), Minor Illusion, Shapechange (Beast or Humanoid form only, no Temporary Hit Points gained from the spell, and no

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

ability (spell save DC 17): At Will: Detect Magic, Mind Spike (level 4 version), Minor Illusion, Shapechange (Beast or Humanoid form only, no Temporary Hit Points gained from the spell, and no

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

, such as manipulating a tool or opening a door or container. 7: Sleep Ray. Wisdom Saving Throw: DC 16 (the target succeeds automatically if it is a Construct or an Undead). Failure: The target has the

Whelm

Magic Items Dungeon Master’s Guide

if the target is a Construct, an Elemental, or a Giant. Immediately after hitting or missing, the weapon flies back to your hand. Shock Wave. You can take a Magic action to strike the ground with

. Supernatural Awareness. While you are holding the weapon, it alerts you to the location of any secret or concealed doors within 30 feet of you. In addition, you can cast Detect Evil and Good or Locate

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

control on objects with this ray, such as manipulating a tool or opening a door or container. Sleep Ray. Wisdom Saving Throw: DC 17 (the target succeeds automatically if it is a Construct or an Undead

Arch-hag

Monsters Monster Manual

hag’s next turn. The target can’t take Reactions until the curse ends. Spellcasting. The hag casts one of the following spells, requiring no Material components and using Charisma as the

spellcasting ability (spell save DC 22): At Will: Detect Thoughts, Dimension Door,Dispel Magic, Hypnotic Pattern 2/Day Each: Mass Suggestion, Modify Memory, Plane Shift Tongue Twister. The

Cultist of Bane

Monsters Forgotten Realms: Adventures in Faerûn

", "rollAction":"Oppressive Burst", "rollDamageType":"Psychic"} Psychic damage, and the target can’t take Reactions until the start of the cultist’s next turn. Spellcasting. The cultist casts one of

the following spells, using Wisdom as the spellcasting ability (spell save DC 16): 2/Day Each: Calm Emotions, Detect Thoughts 1/Day: Dominate PersonCounterattack. Trigger: The cultist is hit by an

Ancient Spirit Dragon

Monsters Forgotten Realms: Adventures in Faerûn

. Spellcasting. The dragon casts one of the following spells, requiring no spell components and using Intelligence as the spellcasting ability (spell save DC 22): At Will: Detect Magic, Shapechange

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

Adult Spirit Dragon

Monsters Forgotten Realms: Adventures in Faerûn

dragon casts one of the following spells, requiring no spell components and using Intelligence as the spellcasting ability (spell save DC 18): At Will: Detect Magic, Shapechange (Beast or Humanoid form

. 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

Summon Construct

spells Tasha’s Cauldron of Everything

feet of the construct, the construct can force it to make a Wisdom saving throw against your spell save DC. On a failed save, the target can’t use reactions and its speed is halved until the start

, reach 5 ft., one target. Hit: 1d8 + 4 + the spell’s level bludgeoning damage. Reactions Berserk Lashing (Clay Only). When the construct takes damage, it makes a slam attack against a random

Rod of the Vonindod

Magic Items Storm King's Thunder

and expend 1 charge to cast the locate object spell from it. When the rod is used to detect objects made of adamantine, such as fragments of the Vonindod construct, its range increases to 10 miles.

Neogi Master

Monsters Mordenkainen Presents: Monsters of the Multiverse

"} necrotic damage, and the target can’t take reactions until the end of the neogi’s next turn, as a spectral tentacle clings to the target. Spellcasting. The neogi casts one of the following

long ago to conquer and devour creatures in other realms. During this era, they dominated umber hulk;umber hulks and used them to build sleek, spidery ships capable of traversing the

Brain in Iron

Monsters Infernal Machine Rebuild

Detect Sentience. The brain in a jar can sense the presence and location of any creature within 300 feet of it that has an Intelligence of 3 or higher, regardless of interposing barriers, unless the

a jar's innate spellcasting ability is Intelligence (spell save DC 15). It can innately cast the following spells, requiring no components: At will: detect thoughts, mage hand, zone of truth 3/day

Sage

Monsters Candlekeep Mysteries

5 ft., one creature. Hit: 9 (2d8);{"diceNotation":"2d8","rollType":"damage","rollAction":"Shocking Grasp","rollDamageType":"lightning"} lightning damage, and the target can’t take reactions

","rollAction":"Spellcasting"} to hit with spell attacks): At will: light, mage hand, mending 3/day each: comprehend languages, detect magic, identify 1/day each: dispel magic, levitate, locate object

Shield Guardian Amulet

Magic Items Icewind Dale: Rime of the Frostmaiden

The amulet is a 4-inch-wide disk composed of silver-framed wood, with a rune carved into its face. A detect magic spell reveals a magical aura of enchantment around the amulet. Every shield

its enemies or to guard the wielder against attack. If an attack threatens to injure the wearer, the construct can magically absorb the blow into its own body, even at a distance. A humanoid that

Neogi Void Hunter

Monsters Spelljammer: Adventures in Space

hulks and used them to build sleek, spidery ships capable of traversing the multiverse.Enslave (Recharges after a Short or Long Rest). The neogi targets one creature it can see within 30 feet of

neogi’s commands and can’t take reactions, and the neogi and the target can communicate telepathically with each other at a distance of up to 1 mile. Whenever the charmed target takes damage, it can repeat the saving throw, ending the effect on itself on a success.

Neogi

Monsters Mordenkainen Presents: Monsters of the Multiverse

ago to conquer and devour creatures in other realms. During this era, they dominated umber hulk;umber hulks and used them to build sleek, spidery ships capable of traversing the multiverse.Enslave

day, or until the neogi dies or is more than 1 mile from the target. The charmed target obeys the neogi’s commands and can’t take reactions, and the neogi and the target can communicate

Krull

Monsters Baldur’s Gate: Descent into Avernus

prepared: Cantrips (at will): chill touch, mending, resistance, sacred flame, spare the dying, thaumaturgy 1st level (4 slots): cure wounds, detect evil and good, false life, inflict wounds, ray of

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.

Master Sage

Monsters Candlekeep Mysteries

5 ft., one creature. Hit: 13 (3d8);{"diceNotation":"3d8","rollType":"damage","rollAction":"Shocking Grasp","rollDamageType":"lightning"} lightning damage, and the target can’t take reactions

;{"diceNotation":"1d20+6","rollType":"spell","rollAction":"Spellcasting"} to hit with spell attacks): At will: light, mage hand, mending, prestidigitation 3/day each: comprehend languages, detect magic

Constructed Commoner

Monsters Candlekeep Mysteries

makes them look like flesh-and-blood people, and the constructs conduct themselves as convincingly real humanoids who are simply living their lives in Wisteria Vale. Detect magic spells do not reveal

their true nature, as each construct is shielded by a spell that makes it seem nonmagical. Though these constructed villagers can physically interact with the environment around them and hold lengthy

Yagnoloth Legacy

Monsters Mordenkainen’s Tome of Foes

Innate Spellcasting. The yagnoloth's innate spellcasting ability is Charisma (spell save DC 16). It can innately cast the following spells, requiring no material components: At will: darkness, detect

":"Battlefield Cunning"}. Up to two allied yugoloths within 60 feet of the yagnoloth that can hear it can use their reactions to make one melee attack each. Teleport. The yagnoloth magically teleports, along

Lich Legacy

Monsters Basic Rules (2014)

following wizard spells prepared: Cantrips (at will): mage hand, prestidigitation, ray of frost 1st level (4 slots): detect magic, magic missile, shield, thunderwave 2nd level (3 slots): acid arrow

, detect thoughts, invisibility, mirror image 3rd level (3 slots): animate dead, counterspell, dispel magic, fireball 4th level (3 slots): blight, dimension door 5th level (3 slots): cloudkill, scrying

Witchkite

Monsters Monstrous Compendium Vol. 4: Eldraine Creatures

will: detect magic, minor illusion, speak with dead 1/day each: detect thoughts, dimension door, hold monsterThe witchkite can take up to two reactions per round but only one per turn. Enchanting

Homunculus Servant

spells Eberron: Forge of the Artificer

Construct, Neutral AC 13 HP 5 + 5 per spell level (the homunculus has a number of Hit Dice [d4s] equal to the spell's level) Speed 20 ft., Fly 30 ft. Mod Save STR 4

Ranged Attack Roll: Bonus equals your spell attack modifier, reach 5 ft. or range 30 ft. Hit: 1d6 plus the spell's level Force damage. Reactions Channel Magic. Trigger: You cast a spell

Valindra Shadowmantle Legacy

Monsters Tomb of Annihilation

(at will): mage hand, prestidigitation, ray of frost 1st level (4 slots): detect magic, magic missile, shield, thunderwave 2nd level (3 slots): acid arrow, detect thoughts, invisibility, mirror image

a lonely tower, a haunted ruin, or an academy of black magic. Alternatively, some liches construct secret tombs filled with powerful guardians and traps. Everything about a lich’s lair

Harengon