blocking before deals continual reverts

Feather of Diatryma Summoning

Magic Items Waterdeep: Dragon Heist

throw the feather into a Large unoccupied space on the ground within 5 feet of you, the feather becomes a living diatryma for up to 6 hours, after which it reverts to its feather form. It reverts to

feather form early if it drops to 0 hit points or if you use an action to speak the command word again while touching the bird. When the diatryma reverts to feather form, the magic of the feather can

Hound Archon

Monsters Planescape: Adventures in the Multiverse

, continual flame Teleport. The archon teleports, along with any equipment it is wearing or carrying, to an unoccupied space it can see within 120 feet of itself.Hound archons are the foot soldiers of

transforms into any Medium or Large dog or wolf while retaining its game statistics (other than its size and losing its Shining Blade attack). The archon reverts to its true form if reduced to 0 hit points or if it uses a bonus action to do so.

Aarakocra Simulacrum

Monsters Storm King's Thunder

Dive Attack. If the aarakocra is flying and dives at least 30 feet straight toward a target and then hits it with a melee weapon attack, the attack deals an extra 3 (1d6);{"diceNotation":"1d6

","rollType":"roll","rollAction":"Dive Attack"} damage to the target. Simulacrum. When a simulacrum drops to 0 hit points or is subjected to a successful dispel magic spell (DC 17), it reverts to ice and snow

Deva Legacy

Monsters Basic Rules (2014)

Angelic Weapons. The deva's weapon attacks are magical. When the deva hits with any weapon, the weapon deals an extra 4d8;{"diceNotation":"4d8","rollType":"damage","rollAction":"Angelic Weapons

its own, or back into its true form. It reverts to its true form if it dies. Any equipment it is wearing or carrying is absorbed or borne by the new form (the deva's choice). In a new form, the deva

Cloud Giant Smiling One Legacy

Monsters Volo's Guide to Monsters

","rollDamageType":"bludgeoning"} bludgeoning damage. The attack deals an extra 14 (4d6);{"diceNotation":"4d6","rollType":"roll","rollAction":"Morningstar"} damage if the giant has advantage on the

":"damage","rollAction":"Rock","rollDamageType":"bludgeoning"} bludgeoning damage. The attack deals an extra 14 (4d6);{"diceNotation":"4d6","rollType":"roll","rollAction":"Rock"} damage if the giant

Warrior's Passkey

Magic Items The Book of Many Things

use a bonus action to transform it into a magic longsword. You are considered proficient with the sword, and you have a +1 bonus to attack and damage rolls made with it. On a hit, the sword deals

1d10 force damage. The item remains in its sword form until it leaves your grasp or you use another bonus action to revert it to its key form. If you end your attunement to the item while it’s in its sword form, it automatically reverts to its key form.

Gray Slaad (control gem variant) Legacy

Monsters Monster Manual (2014)

is wearing or carrying isn’t transformed. It reverts to its true form if it dies. Innate Spellcasting. The slaad’s innate spellcasting ability is Charisma (spell save DC 14). The slaad can

uninterrupted work and a successful DC 20 Wisdom (Medicine) check. Each failed attempt deals 22 (4d10);{"diceNotation":"4d10","rollType":"damage","rollDamageType":"psychic"} psychic damage to the

Death Slaad (control gem variant) Legacy

Monsters Monster Manual (2014)

is wearing or carrying isn't transformed. It reverts to its true form if it dies. Innate Spellcasting. The slaad's innate spellcasting ability is Charisma (spell save DC 15, +7;{"diceNotation":"1d20+7

from an incapacitated slaad. Each try requires 1 minute of uninterrupted work and a successful DC 20 Wisdom (Medicine) check. Each failed attempt deals 22 (4d10);{"diceNotation":"4d10","rollType

Green Slaad (control gem variant) Legacy

Monsters Monster Manual (2014)

is wearing or carrying isn't transformed. It reverts to its true form if it dies. Innate Spellcasting. The slaad's innate spellcasting ability is Charisma (spell save DC 12). The slaad can innately

slaad. Each try requires 1 minute of uninterrupted work and a successful DC 20 Wisdom (Medicine) check. Each failed attempt deals 22 (4d10);{"diceNotation":"4d10","rollType":"damage","rollDamageType

Cradle of the Fire Scion

Monsters Bigby Presents: Glory of the Giants

advantage on saving throws against spells and other magical effects. Siege Monster. The cradle deals double damage to objects and structures.Multiattack. The cradle makes three Slam or Hurl Lava attacks

’s form is shrouded in a continual cloud of billowing ash and smoke. The awakened scion forms a blade of lava in its mighty hand and schemes to resume its ancient campaigns of conquest

Storm Giant Quintessent

Monsters Mordenkainen Presents: Monsters of the Multiverse

form and hurls it at a creature it can see within 600 feet of it. The javelin deals 19 (3d6 + 9);{"diceNotation":"3d6+9", "rollType":"damage", "rollAction":"Wind Javelin", "rollDamageType":"force

their banks; snow, dust, or sand forms deep drifts or dunes. Lightning. Flashes of lightning and peals of thunder are continual, day and night, within 5 miles of the lair. Winds. High wind blows within

Storm Giant Quintessent Legacy

Monsters Volo's Guide to Monsters

deals 19 (3d6 + 9);{"diceNotation":"3d6+9","rollType":"damage","rollAction":"Wind Javelin","rollDamageType":"piercing"} piercing damage to the target, striking unerringly. The javelin disappears after

, dust, or sand form deep drifts or dunes. Flashes of lightning and peals of thunder are continual, day and night, within 5 miles of the lair. If the giant dies, the lightning, thunder, and high wind

Scion of Surtur

Monsters Bigby Presents: Glory of the Giants

. Siege Monster. The scion deals double damage to objects and structures.Multiattack. The scion makes one attack using Lava Blade or Lava Ball, as well as two Slam attacks. Lava Blade. Melee Weapon

cradle is destroyed, the scion of Surtur inside it awakens. Standing 60 feet tall, the scion’s form is shrouded in a continual cloud of billowing ash and smoke. The awakened scion forms a blade of

Wereraven

Monsters Curse of Strahd

or carrying isn’t transformed. It reverts to its humanoid form if it dies.Wereravens are secretive and extraordinarily cautious lycanthropes that trust one another but are wary of just about

already higher. Attack and damage rolls for the wereraven’s bite are based on whichever is higher of the character’s Strength and Dexterity. The bite of a wereraven in raven form deals 1

Drow Arachnomancer Legacy

Monsters Mordenkainen’s Tome of Foes

melds into the giant spider form. It can't activate, use, wield, or otherwise benefit from any of its equipment. It reverts to its humanoid form if it dies. Fey Ancestry. The drow has advantage on

attacks. The first of these attacks that hits each round deals an extra 26 (4d12);{"diceNotation":"4d12","rollType":"damage","rollAction":"Multiattack","rollDamageType":"poison"} poison damage to the

Zorak Lightdrinker

Monsters Waterdeep: Dungeon of the Mad Mage

carrying does. He reverts to his true form if he dies. While in mist form, Zorak can't take any actions, speak, or manipulate objects. He is weightless, has a flying speed of 20 feet, can hover, and can

within 2 hours or be destroyed. Once in his resting place, he reverts to his vampire form. He is then paralyzed until he regains at least 1 hit point. After spending 1 hour in his resting place with 0

Euryale

Monsters The Book of Many Things

, the attack deals an extra 16 (3d10);{"diceNotation":"3d10", "rollType":"damage", "rollAction":"Venomous Strike", "rollDamageType":"poison"} poison damage.When she retired from adventuring, Euryale

statistics are the same in each form except where noted in this stat block. Any equipment she is wearing or carrying isn’t transformed. Euryale reverts to her medusa form if she dies. Petrifying

The Abbot

Monsters Curse of Strahd

Angelic Weapons. The Abbot's weapon attacks are magical. When the Abbot hits with any weapon, the weapon deals an extra 4d8;{"diceNotation":"4d8","rollType":"damage","rollAction":"Angelic Weapons

than its own, or back into its true form. It reverts to its true form if it dies. Any equipment it is wearing or carrying is absorbed or borne by the new form (the Abbot's choice). In a new form, the

Feather of Diatryma Summoning

Compendium - Sources->Dungeons & Dragons->Waterdeep: Dragon Heist

. When the diatryma reverts to feather form, the magic of the feather can’t be used again until 7 days have passed. The diatryma uses the statistics of an axe beak, except that its beak deals piercing

to 6 hours, after which it reverts to its feather form. It reverts to feather form early if it drops to 0 hit points or if you use an action to speak the command word again while touching the bird

Mechanus

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

normally deals 1d10 + 5 damage always deals 10 damage on Mechanus. Optional Rule: Imposing Order At the end of each long rest taken on this plane, a visitor that isn’t lawful neutral must make a DC 10

Wisdom saving throw. On a failed save, the creature’s alignment changes to lawful neutral. The creature’s alignment reverts to normal after one day spent on a plane other than Mechanus. Casting the dispel evil and good spell on the creature also restores its original alignment.

28. Statue of Tharmekhûl

Compendium - Sources->Dungeons & Dragons->Waterdeep: Dungeon of the Mad Mage

28. Statue of Tharmekhûl A 12-foot-tall stone statue with continual flame spells cast on its eyes stands facing the exit in the middle of this 20-foot-high, domed chamber. The statue represents

slashes. The axe is considered a magic weapon in the statue’s grasp. The target must succeed on a DC 15 Dexterity saving throw or take 16 (2d12 + 5) slashing damage plus 11 (2d10) fire damage. After swinging the axe once, the statue reverts to its inanimate state until the trap is triggered again.

34. Transmutation Classroom

Compendium - Sources->Dungeons & Dragons->Waterdeep: Dungeon of the Mad Mage

34. Transmutation Classroom Light. The 20-foot-high room is lit by continual flame spells cast on wall sconces spaced 15 feet apart. The flames shift color every minute. Circle. Inscribed inside a

removing it from the circle causes the true polymorph effect to end, whereupon it reverts to a wyvern and attacks. Thaumaturgic Circle A detect magic spell reveals an aura of transmutation magic

Climbing the Shrine

Compendium - Sources->Dungeons & Dragons->Sleeping Dragon’s Wake

. Light. All areas of the shrine are brightly lit by the continual flame spell cast on torches in sconces. Open First Level. The lack of doors on the first level of the shrine means that sound

a creature kills Lhammaruntosz or a Scaly Eye member while inside the temple, a spectral dragon appears and attacks the creature. The dragon makes an attack roll with a +10 bonus to hit and deals 22

Hound Archon

Compendium - Sources->Dungeons & Dragons->Planescape: Adventures in the Multiverse->Morte’s Planar Parade

ability: At will: detect evil and good 1/day each: aid, continual flame Teleport. The archon teleports, along with any equipment it is wearing or carrying, to an unoccupied space it can see within 120

Blade attack). The archon reverts to its true form if reduced to 0 hit points or if it uses a bonus action to do so. Dmitry Burmak

Maddgoth's Homunculus

Compendium - Sources->Dungeons & Dragons->Waterdeep: Dungeon of the Mad Mage

is Large and has 55 (10d10) hit points. It has a Strength score of 15 (+2), and its bite attack deals 9 (2d6 + 2) piercing damage on a hit. It understands Abyssal, Common, Draconic, and Gnomish, but

can’t speak. If the homunculus is forcibly taken from the castle, its relative size reverts to Tiny, and its statistics become those of a normal homunculus. Whenever the creature’s relative size

29. Old Books

Compendium - Sources->Dungeons & Dragons->Waterdeep: Dungeon of the Mad Mage

29. Old Books Light. Lanterns anchored to the 15-foot-high ceiling by iron chains are spaced 20 feet apart and have continual flame spells cast on them. Bookshelves. Carved into the walls are five

constructs are helmed horrors armed with metal staffs. They have immunity to cone of cold, disintegrate, and fireball spells. On its turn, a Halaster horror can use its action to make two attacks with its staff, which deals 8 (1d8 + 4) bludgeoning damage on a hit.

15. Wind Tunnel

Compendium - Sources->Dungeons & Dragons->Tomb of Annihilation

15. Wind Tunnel Carved birds soar across the walls of this corridor. Blocking the passage near its northern end is a large adamantine propeller with five sharp blades. With a successful DC 15

Dexterity (Acrobatics) check. On a failed check, the character takes 33 (6d10) slashing damage as it passes through the blades. At full speed, the propeller deals 66 (12d10) slashing damage to any creature

Deva

Compendium - Sources->Dungeons & Dragons->Monster Manual (2014)

) Angelic Weapons. The deva’s weapon attacks are magical. When the deva hits with any weapon, the weapon deals an extra 4d8 radiant damage (included in the attack). Innate Spellcasting. The deva’s

its own, or back into its true form. It reverts to its true form if it dies. Any equipment it is wearing or carrying is absorbed or borne by the new form (the deva’s choice). In a new form, the deva

17. Spellcasting Hall

Compendium - Sources->Dungeons & Dragons->Waterdeep: Dungeon of the Mad Mage

17. Spellcasting Hall This room has a vaulted ceiling 30 feet high. It is lit by continual flame spells cast on stone wall sconces shaped like fiendish claws. The walls, floor, and ceiling are

incapacitated or reduced to 0 hit points, a statue instantly teleports to its alcove, where it reverts to its inanimate form and regains all its hit points. It can’t reanimate again until all three

16. Central Cavern

Compendium - Sources->Dungeons & Dragons->Waterdeep: Dungeon of the Mad Mage

. Characters who enter the sphere can tell something has happened when Maddgoth’s castle suddenly looms twelve times larger in their vision. A shrunken creature or object reverts to its normal size

final 40 feet before impact. Because the reducing effect creates more relative distance between the creature and the cavern floor, a fall from anywhere on the castle deals 20d6 bludgeoning damage on impact.

Wereraven

Compendium - Sources->Dungeons & Dragons->Van Richten’s Guide to Ravenloft

form. Its statistics, other than its size and speed, are the same in each form. Any equipment it is wearing or carrying isn’t transformed. It reverts to its humanoid form if it dies. Wereraven

Strength and Dexterity. The peck of a wereraven deals 1 piercing damage in raven form (no ability modifier applies to this damage), or 1d4 piercing damage in hybrid form (the character’s ability modifier applies to this damage). This attack carries the curse of wereraven lycanthropy.

15. Mecha-Halaster

Compendium - Sources->Dungeons & Dragons->Waterdeep: Dungeon of the Mad Mage

15. Mecha-Halaster Pillar Sconces. This hall has a 150-foot-high arched ceiling buttressed by stone pillars that have sconces protruding from them at 10-foot intervals. Continual flame spells cast on

fire giant has 221 hit points and the innate magical ability to hurl fire at will (as the fire giant’s Rock attack option, except it deals fire damage). She stands on the construct’s chest, 20 feet

Green Dragon Lairs

Compendium - Sources->Dungeons & Dragons->Fizban's Treasury of Dragons

zombies take their turn immediately after this lair action. Each one reverts to an inanimate corpse after 1 minute, when the dragon uses this lair action again, or when the zombie is destroyed

. Lashing Root. One large root or branch that is part of the lair makes a melee attack roll against a creature within 10 feet of it. It has a +7 bonus to hit and deals 10 (3d6) bludgeoning damage on a hit

Example Simple Traps

Compendium - Sources->Dungeons & Dragons->Xanathar's Guide to Everything

trap triggers it. Effect. The trap makes an attack against the triggering creature. The attack has a +8 attack bonus and deals 5 (1d10) piercing damage on a hit. This attack can’t gain advantage or

. The trap makes two attacks against the triggering creature. Each attack has a +8 attack bonus and deals 5 (1d10) piercing damage on a hit. This attack can’t gain advantage or disadvantage

Tips for Dungeon Masters

Compendium - Sources->Dungeons & Dragons->Borderlands Quest: Goblin Trouble

into a part of the ongoing story. What does it look like when a monster is defeated? What does the Gnome Barbarian say or do if the heavy boulder blocking the cave doesn’t budge? These points in the

game can spark great storytelling and acting moments. Remember, though, that part of the DM’s job is to keep the game’s story moving forward. If describing every single attack roll in a long combat gets boring, just say how much damage the attack deals and get to the next exciting moment.

D&D Beyond

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