blades before diffusing check rating

Blade Scout

Monsters Vecna: Eve of Ruin

5 feet of itself. The trap is hidden, requiring a successful DC 17 Intelligence (Investigation) check to find. The trap lasts for 1 minute. Whenever an enemy enters a space within 10 feet of the trap

Blades’ legions. Blades of Eberron In the aftermath of Eberron’s Last War, a warforged called the Lord of Blades rose to fill the power vacuum left in the devastated Mournland. The Lord

Infernal Calling

Spells Xanathar's Guide to Everything

Uttering a dark incantation, you summon a devil from the Nine Hells. You choose the devil’s type, which must be one of challenge rating 6 or lower, such as a barbed devil or a bearded devil

, you must make a Charisma (Deception, Intimidation, or Persuasion) check contested by its Wisdom (Insight) check. You make the check with advantage if you say the devil’s true name. If your check

Adult Gold Dragon Legacy

Monsters Basic Rules (2014)

polymorphs into a humanoid or beast that has a challenge rating no higher 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

spent legendary actions at the start of its turn. Detect. The dragon makes a Wisdom (Perception) check. Tail Attack. The dragon makes a tail attack. Wing Attack (Costs 2 Actions). The dragon beats

Ancient Gold Dragon Legacy

Monsters Basic Rules (2014)

polymorphs into a humanoid or beast that has a challenge rating no higher 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

regains spent legendary actions at the start of its turn. Detect. The dragon makes a Wisdom (Perception) check. Tail Attack. The dragon makes a tail attack. Wing Attack (Costs 2 Actions). The dragon

Twinblade

Equipment

whirl, make a DC 10 Dexterity check, adding your proficiency bonus if you are proficient with twinblades. On a success, you gain a +1 bonus to your AC until the start of your next turn, the whirling

blades acting as a barrier against attacks. On a result of 15 or higher, you gain a +2 bonus, instead. On a failure, you deal slashing damage to yourself equal to your proficiency bonus and gain no bonus to your AC from the whirl this turn.

Ancient Brass Dragon Legacy

Monsters Basic Rules (2014)

damage or someone uses an action to wake it. Change Shape. The dragon magically polymorphs into a humanoid or beast that has a challenge rating no higher than its own, or back into its true form. It

be used at a time and only at the end of another creature's turn. The dragon regains spent legendary actions at the start of its turn. Detect. The dragon makes a Wisdom (Perception) check. Tail

Enchanting Infiltrator

Monsters The Book of Many Things

illusory duplicate of itself in its space, then teleports, along with any equipment it is wearing or carrying, to an unoccupied space within 15 feet of itself. The image flings illusory blades at two

’s a hidden thieves’ guildhall or a lavish manse. The lair is filled with clever defenses to disorient, weaken, and kill intruders. The villain’s challenge rating increases while the

Ancient Copper Dragon Legacy

Monsters Basic Rules (2014)

at the end of each of its turns, ending the effect on itself with a successful save. Change Shape. The dragon magically polymorphs into a humanoid or beast that has a challenge rating no higher than

makes a Wisdom (Perception) check. Tail Attack. The dragon makes a tail attack. Wing Attack (Costs 2 Actions). The dragon beats its wings. Each creature within 15 feet of the dragon must succeed on a DC

Prisoner 13

Monsters Keys from the Golden Vault

in Dwarvish script on her neck and across her shoulder blades reads, “Endless dreams entombed in stone.” Flames. A roiling storm of brilliant flames covers her back and ribs. Shroud

character who examines any visible tattoos and succeeds on a DC 15 Intelligence (Investigation) check notices some of the hidden marks. A character who succeeds on a DC 15 Intelligence (Arcana) check determines that the sigils have something to do with minds or telepathy.PsychicPoison

Adult Silver Dragon Legacy

Monsters Basic Rules (2014)

turns, ending the effect on itself on a success. Change Shape. The dragon magically polymorphs into a humanoid or beast that has a challenge rating no higher than its own, or back into its true form

option can be used at a time and only at the end of another creature's turn. The dragon regains spent legendary actions at the start of its turn. Detect. The dragon makes a Wisdom (Perception) check

Ancient Bronze Dragon Legacy

Monsters Basic Rules (2014)

failed save, the creature is pushed 60 feet away from the dragon. Change Shape. The dragon magically polymorphs into a humanoid or beast that has a challenge rating no higher than its own, or back

(Perception) check. Tail Attack. The dragon makes a tail attack. Wing Attack (Costs 2 Actions). The dragon beats its wings. Each creature within 15 feet of the dragon must succeed on a DC 24 Dexterity saving

Ancient Silver Dragon Legacy

Monsters Basic Rules (2014)

of its turns, ending the effect on itself on a success. Change Shape. The dragon magically polymorphs into a humanoid or beast that has a challenge rating no higher than its own, or back into its

) check. Tail Attack. The dragon makes a tail attack. Wing Attack (Costs 2 Actions). The dragon beats its wings. Each creature within 15 feet of the dragon must succeed on a DC 25 Dexterity saving throw

Adult Bronze Dragon Legacy

Monsters Basic Rules (2014)

failed save, the creature is pushed 60 feet away from the dragon. Change Shape. The dragon magically polymorphs into a humanoid or beast that has a challenge rating no higher than its own, or back into

) check. Tail Attack. The dragon makes a tail attack. Wing Attack (Costs 2 Actions). The dragon beats its wings. Each creature within 10 feet of the dragon must succeed on a DC 20 Dexterity saving

Gar Shatterkeel (Noncore)

Monsters Locathah Rising

can take an action on their turn to make a DC 18 Strength (Athletics) or Dexterity (Acrobatics) check to free themselves. This effect lasts for 1 minute unless dispelled (it counts as a 6th level spell

), and doesn’t require Gar to maintain concentration. Gar Shatterkeel and any creatures he designates are immune to this effect. Up to five corpses that Gar can see within 60 feet rise up as drowned blade;drowned blades and attack anyone Gar directs them to on his turn. Cold

Beholder Legacy

Monsters Monster Manual (2014)

closing to melee range. A beholder encountered in its lair has a challenge rating of 14 (11,500 XP). Lair Actions When fighting inside its lair, a beholder can invoke the ambient magic to take lair

DC 15 Strength (Athletics) or Dexterity (Acrobatics) check. An eye opens on a solid surface within 60 feet of the beholder. One random eye ray of the beholder shoots from that eye at a target of the

Death Tyrant Legacy

Monsters Monster Manual (2014)

it contains more trappings of death and decay. A death tyrant encountered in its lair has a challenge rating of 15 (13,000 XP). Lair Actions When fighting inside its lair, a death tyrant can invoke

turn within 10 feet of a wall must succeed on a DC 17 Dexterity saving throw or be grappled. Escaping requires a successful DC 17 Strength (Athletics) or Dexterity (Acrobatics) check. A spectral eye

Grim Champion of Bloodshed

Monsters The Book of Many Things

conjures a churning storm of spectral blades that fills a 20-foot cube centered on a point it can see within 120 feet of itself. The storm lasts until the start of the champion’s next turn. While the

, Grim Champion of Bloodshed, and Aleron, Grim Champion of Pestilence—rival Jyn for power and together can oppose her. The fact that the three champions rarely agree on anything is a major check on

Morkoth Legacy

Monsters Volo's Guide to Monsters

of the lair is underwater. A morkoth encountered in its lair has a challenge rating of 12 (8,400 XP). Lair Actions When fighting inside its lair, a morkoth can invoke the ambient magic of the island

watched, even when they aren't. Each time a creature that has been on the island for less than a year finishes a short or long rest, it must make a DC 10 Intelligence (Investigation) check. On a

Lorthuun

Monsters Out of the Abyss

lair has a challenge rating of 14 (11,500 XP). Lair Actions When fighting inside its lair, a beholder can invoke the ambient magic to take lair actions. On initiative count 20 (losing initiative

starts its turn within 10 feet of such a wall must succeed on a DC 15 Dexterity saving throw or be grappled. Escaping requires a successful DC 15 Strength (Athletics) or Dexterity (Acrobatics) check. An

Umbraxakar

Monsters Waterdeep: Dungeon of the Mad Mage

creature is pushed 60 feet away from the dragon. Change Shape. The dragon magically polymorphs into a humanoid or beast that has a challenge rating no higher than its own, or back into its true form. It

be used at a time and only at the end of another creature's turn. The dragon regains spent legendary actions at the start of its turn. Detect. The dragon makes a Wisdom (Perception) check. Tail

Darkweaver

Monsters Planescape: Adventures in the Multiverse

can climb difficult surfaces, including upside down on ceilings, without needing to make an ability check. Sunlight Hypersensitivity. The darkweaver takes 10 radiant damage when it starts its turn

darkweaver encountered in its lair has a challenge rating of 11 (7,200 XP). Lair Actions On initiative count 20 (losing initiative ties), a darkweaver can take one of the following lair actions; the

Stalagma Steelshadow

Monsters Waterdeep: Dungeon of the Mad Mage

each of its turns, ending the effect on itself on a success. Change Shape. The dragon magically polymorphs into a humanoid or beast that has a challenge rating no higher than its own, or back into

) check. Tail Attack. The dragon makes a tail attack. Wing Attack (Costs 2 Actions). The dragon beats its wings. Each creature within 10 feet of the dragon must succeed on a DC 21 Dexterity saving

Aurnozci

Monsters The Book of Many Things

chapter 20 for details about this realm. The challenge rating of Aurnozci is 23 (50,000 XP) when it’s encountered in its lair. Lair Actions On initiative count 20 (losing initiative ties

apart the cocoon, ending the cocoon’s effect with a successful DC 23 Strength (Athletics) check. Insect Swarm. Aurnozci creates a 30-foot-radius sphere of stinging wasps centered on a point

Demonomicon of Iggwilv Legacy

Magic Items Tasha’s Cauldron of Everything

charges). Abyssal Reference. You can reference the Demonomicon whenever you make an Intelligence check to discern information about demons or a Wisdom (Survival) check related to the Abyss. When you

do so, you can add double your proficiency bonus to the check. Fiendish Scourging. Your magic causes pain to fiends. While carrying the book, when you make a damage roll for a spell you cast against

Juiblex

Monsters Mordenkainen Presents: Monsters of the Multiverse

ooze at Juiblex’s command. Juiblex’s challenge rating is 24 (62,000 XP) when encountered in its lair. Lair Actions On initiative count 20 (losing initiative ties), Juiblex can take one

check. The slime lasts for 1 hour or until it is burned away with fire. If the slime is set on fire, it burns away after 1 round. Any creature that starts its turn in the burning slime takes 22 (4d10

Arasta

Monsters Mythic Odysseys of Theros

, without needing to make an ability check. Web Walker. Arasta ignores movement restrictions caused by webbing.Multiattack. Arasta makes three attacks: one with her bite and two with her claws. Bite

an action to make a DC 21 Strength check. On a success, it can free itself or a creature within 5 feet of it that is restrained by the web. This webbing is immune to all damage except magical fire. A

Lhammaruntosz

Monsters Sleeping Dragon’s Wake

rating no higher than her own, or back into her true form. She reverts to her true form if she dies. Any equipment she is wearing or carrying is absorbed or borne by the new form (Lhammaruntosz's choice

her turn. Detect. Lhammaruntosz makes a Wisdom (Perception) check. Tail Attack. Lhammaruntosz makes a tail attack. Wing Attack (Costs 2 Actions). Lhammaruntosz beats its wings. Each creature

15. Wind Tunnel

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

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

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

Example Complex Traps

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

Rune of Fear increases the trap’s power. Each successful check on an attempt to disable the rune increases the damage of the blades and the crushing pillars by 5 (1d10) and increases the rune’s

an action, a creature that can see the blades can attempt an Intelligence (Investigation) check. A successful check means that the character has learned how to anticipate the blades’ movement

34. Guardians Bar the Way

Compendium - Sources->Dungeons & Dragons->Tales from the Yawning Portal->a3

it is in contact. A paralyzed creature takes the damage again at the start of each of its turns. There is barely enough room for a Medium humanoid to crawl under the crossed polearms and between the statues. Doing so without touching the blades requires a successful DC 10 Dexterity check.

midpoint of this corridor is a 10-foot-square pressure plate (see “The Ruins: General Features” at the beginning of the adventure) that triggers if more than 30 pounds is placed on it. Shocking Blades. If

35. Scythe-Seeing

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

female dwarf has fallen prey to a scythe trap, her dead body pinned between the trap’s blades and the western wall. Halaster has placed a teleport trap (see “Teleport Traps”) just south of the scythe

trap. Scythe Trap If the dead dwarf is disturbed, the scythe blades shatter due to the built-up pressure from the gears hidden in the walls. Any creature within 5 feet of the broken trap must succeed

Morkoth

Monsters Mordenkainen Presents: Monsters of the Multiverse

is underwater. A morkoth encountered in its lair has a challenge rating of 12 (8,400 XP). Lair Actions On initiative count 20 (losing initiative ties), the morkoth can take one of the following

time, so it can be recovered with a successful DC 15 Wisdom (Perception) check. An object that is misplaced but not recovered ends up in the morkoth’s lair 1 hour later. If the creature later

Infernal Calling

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

summon a devil from the Nine Hells. You choose the devil’s type, which must be one of challenge rating 6 or lower, such as a barbed devil or a bearded devil. The devil appears in an unoccupied space

Persuasion) check contested by its Wisdom (Insight) check. You make the check with advantage if you say the devil’s true name. If your check fails, the devil becomes immune to your verbal commands for

Monster Research

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

a relevant ability check equals 10 + the creature’s challenge rating. Monster Research Type Suggested Skills Aberration Arcana Beast Animal Handling, Nature, or Survival Celestial Arcana or

4. Kobolds' Den

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

most are tossing knucklebones, sharpening blades, sewing clothing, carving whalebone, or picking on each other. See “Random Encounters” (above) for guidelines on how the kobolds respond to intruders

. If the characters spend a few minutes searching the area, a successful DC 12 Intelligence (Investigation) check suggests that approximately two dozen kobolds live in this chamber. Treasure Their only

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