blade brain diffusing check rare

Spell Scroll

Magic Items Dungeon Master’s Guide

, the scroll isn’t lost. If the spell is on your spell list but of a higher level than you can normally cast, you make an ability check using your spellcasting ability to determine whether you

cast the spell. The DC equals 10 plus the spell’s level. On a failed check, the spell disappears from the scroll with no other effect. The level of the spell on the scroll determines the spell

Hat of Many Spells

Magic Items Dungeon Master’s Guide

slot of the spell’s level. Then, to determine whether you cast the spell, make an Intelligence (Arcana) check (DC 10 plus the spell’s level). On a successful check, you cast the spell using

its normal casting time, and you can’t use this property again until you finish a Short or Long Rest. On a failed check, you fail to cast the spell and a random effect occurs instead

Elder Brain Legacy

Monsters Volo's Guide to Monsters

that loom large in its mind (including things the target worries about, loves, or hates). The elder brain can also make a Charisma (Deception) check with advantage to deceive the target’s mind

into thinking it believes one idea or feels a particular emotion. The target contests this attempt with a Wisdom (Insight) check. If the elder brain succeeds, the mind believes the deception for 1 hour

Mind Flayer Arcanist Legacy

Monsters Monster Manual (2014)

":"Spellcasting"} to hit with spell attacks). The mind flayer arcanist has the following wizard spells prepared: Cantrips (at will): blade ward, dancing lights, mage hand, shocking grasp 1st level (4 slots

DC 15) and must succeed on a DC 15 Intelligence saving throw or be stunned until this grapple ends. Extract Brain. Melee Weapon Attack: +7;{"diceNotation":"1d20+7","rollType":"to hit","rollAction

Gnome Squidling

Monsters Icewind Dale: Rime of the Frostmaiden

grappled (escape DC 7) and must succeed on a DC 7 Intelligence saving throw or be stunned until this grapple ends. Extract Brain. Melee Weapon Attack: +0;{"diceNotation":"1d20+0","rollType":"to hit

","rollAction":"Extract Brain"} to hit, reach 5 ft., one incapacitated creature grappled by the squidling. Hit: 27 (5d10);{"diceNotation":"5d10","rollType":"damage","rollAction":"Extract Brain

Elder Brain

Monsters Mordenkainen Presents: Monsters of the Multiverse

Creature Sense. The elder brain is aware of the presence of creatures within 5 miles of it that have an Intelligence score of 4 or higher. It knows the distance and direction to each creature, as

this manner. Legendary Resistance (3/Day). If the elder brain fails a saving throw, it can choose to succeed instead. Magic Resistance. The elder brain has advantage on saving throws against spells

Mercane

Monsters Spelljammer: Adventures in Space

Mercane Telepathy. The mercane can communicate telepathically with any other mercane it knows, regardless of the distance between them.Multiattack. The mercane makes three Psi-Imbued Blade attacks

. Psi-Imbued Blade. Melee Weapon Attack: +6;{"diceNotation":"1d20+6","rollType":"to hit","rollAction":"Psi-Imbued Blade"} to hit, reach 5 ft., one target. Hit: 10 (2d6 + 3);{"diceNotation":"2d6+3

Blue Slaad (control gem variant) Legacy

Monsters Monster Manual (2014)

point. Control Gem. Implanted in the slaad's brain is a magic control gem. The slaad must obey whoever possesses the gem and is immune to being charmed while so controlled. Certain spells can be used to

remove the gem 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

Infected Elder Brain

Monsters Phandelver and Below: The Shattered Obelisk

Creature Sense. The elder brain is aware of creatures within 1 mile of itself that have an Intelligence score of 4 or higher. It knows the distance and direction to each creature, as well as each one

. Magic Resistance. The elder brain has advantage on saving throws against spells and other magical effects. Telepathic Hub. The elder brain can use its telepathy to initiate and maintain telepathic

Brain Breaker

Monsters Phandelver and Below: The Shattered Obelisk

Creature Sense. The brain breaker is aware of creatures within 1 mile of itself that have an Intelligence score of 4 or higher. It knows the distance and direction to each creature, as well as each

. Magic Resistance. The brain breaker has advantage on saving throws against spells and other magical effects. Telepathic Hub. The brain breaker can use its telepathy to initiate and maintain

Gray Slaad (control gem variant) Legacy

Monsters Monster Manual (2014)

. Regeneration. The slaad regains 10 hit points at the start of its turn if it has at least 1 hit point. Control Gem. Implanted in the slaad’s brain is a magic control gem. The slaad must obey

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)

Gem. Implanted in the slaad's brain is a magic control gem. The slaad must obey whoever possesses the gem and is immune to being charmed while so controlled. Certain spells can be used to acquire the

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)

slaad's brain is a magic control gem. The slaad must obey whoever possesses the gem and is immune to being charmed while so controlled. Certain spells can be used to acquire the gem. If the slaad

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

Red Slaad (control gem variant) Legacy

Monsters Monster Manual (2014)

point. Control Gem. Implanted in the slaad's brain is a magic control gem. The slaad must obey whoever possesses the gem and is immune to being charmed while so controlled. Certain spells can be used to

remove the gem 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

Concealed Blade

Equipment

A Concealed Blade is a dagger built into a mechanism hidden within a bracer or gauntlet. When you roll Initiative, you can make a Dexterity (Deception) check opposed by others’ Wisdom

(Perception) checks. You have Advantage on the first attack made in the first round of combat against any enemy who failed their check.

Spell Scroll Legacy

Magic Items Basic Rules (2014)

, the scroll isn’t lost. If the spell is on your spell list but of a higher level than you can normally cast, you make an ability check using your spellcasting ability to determine whether you

cast the spell. The DC equals 10 plus the spell’s level. On a failed check, the spell disappears from the scroll with no other effect. The level of the spell on the scroll determines the spell

Garret Levistusson

Monsters Lost Laboratory of Kwalish

Special Equipment. Garret wears a ring of warmth (included in his statistics) and wields a gambler's blade longsword (see appendix D). Bardic Inspiration (3/day). As a bonus action, Garret can give

add the number rolled to one ability check, attack roll, or saving throw it makes. The creature can use the inspiration die after the roll is made but before the DM says whether it succeeds or fails

Vampiric Mind Flayer

Monsters Van Richten’s Guide to Ravenloft

Spider Climb. The mind flayer can climb difficult surfaces, including upside down on ceilings, without needing to make an ability check. Sunlight Sensitivity. While in sunlight, the mind flayer has

psychic damage dies.When the mind flayers of Bluetspur (see chapter 3) could find no cure for their overlord’s affliction, their degenerating elder brain turned to radical methods to stave off

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

Attack: +18;{"diceNotation":"1d20+18", "rollType":"to hit", "rollAction":"Lava Blade"} to hit, reach 30 ft., one target. Hit: 32 (4d10 + 10);{"diceNotation":"4d10+10", "rollType":"damage", "rollAction

Ioun Stone Legacy

Magic Items Basic Rules (2014)

to separate it from you, either by making a successful attack roll against AC 24 or a successful DC 24 Dexterity (Acrobatics) check. You can use an action to seize and stow the stone, ending its

effect. A stone has AC 24, 10 hit points, and resistance to all damage. It is considered to be an object that is being worn while it orbits your head. Ioun Stone of Absorption;Absorption (Very Rare

Dyrrn

Monsters Eberron: Rising from the Last War

teleport up to 30 feet to an unoccupied space it can see.Multiattack. Dyrrn makes one Tentacle Whip attack and uses its Corruption once. Dyrrn can replace its Tentacle Whip attack with Extract Brain if it

flesh twists in alien ways. The creature has disadvantage on attack rolls, its speed is reduced by half, and if it tries to cast a spell, it must first succeed on a DC 15 Intelligence check or the spell

Encephalon Gemmule

Monsters Phandelver and Below: The Shattered Obelisk

chance to mutate into what is known as an encephalon cluster—a ravenous, slimy, psionic, brain-shaped mass that spawns horrors called encephalon gemmules.PsychicLeech. The gemmule targets one

’t use Leech again until it detaches. It can detach itself by spending 5 feet of its movement. As an action, the target or a creature within 5 feet of the target can detach the gemmule by succeeding on a DC 15 Strength check.

Spell Gem

Magic Items Out of the Abyss

the gem. If the spell is of a higher level than you can normally cast, you must make an ability check using your spellcasting ability to determine whether you cast it successfully. The DC equals 10

+ the spell’s level. On a failed check, the spell disappears from the gem with no other effect. Each spell gem has a maximum level for the spell it can store. The spell level determines the gem

Spellburrow

magic-items

skull, establishing a psychic connection with you. While it lacks human consciousness, it possesses a strange alien sentience that responds to your desires. There are tales of rare Spellburrows that

possess greater knowledge and sentience; such stories sometimes end with the Spellburrow consuming the brain of the wizard who pushed it too far—but these are surely just fanciful stories! A

Grim Champion of Desolation

Monsters The Book of Many Things

Legendary Resistance (3/Day). If the champion fails a saving throw, it can choose to succeed instead.Multiattack. The champion makes two Leeching Blade attacks and uses Hollow Void. Leeching Blade

. Melee Weapon Attack: +14;{"diceNotation":"1d20+14", "rollType":"to hit", "rollAction":"Leeching Blade"} to hit, reach 5 ft., one target. Hit: 13 (2d6 + 6);{"diceNotation":"2d6+6", "rollType":"damage

Grim Champion of Bloodshed

Monsters The Book of Many Things

attacks with Blade Storm, if available. Blazing Morningstar. Melee Weapon Attack: +12;{"diceNotation":"1d20+12", "rollType":"to hit", "rollAction":"Blazing Morningstar"} to hit, reach 5 ft., one target

", "rollAction":"Blazing Morningstar", "rollDamageType":"fire"} fire damage. Blade Storm (Recharge 5–6);{"diceNotation":"1d6", "rollType":"recharge", "rollAction":"Blade Storm"}. The champion

Runic Colossus

Monsters Bigby Presents: Glory of the Giants

DC 22 Strength check. On a successful check, the affected creature relocates to an unoccupied space of its choice within 5 feet of the colossus and is no longer restrained. Arcane Beam (Recharge 5–6

combined their efforts to protect their ancient empire from a particularly vicious dragon. Stone and hill giants hewed a mighty form from living stone. Cloud and frost giants gathered rare metals, and

Blast Disk (Rare)

magic-items

the disk and arcane symbols are engraved in its surface. Anyone studying the surface of the disk can make an Intelligence (Arcana) check corresponding to the save DC of the disk. On a success, they

effect when triggered. The effect must target either a single creature—whoever triggers the disk—or an area of effect centered on the disk. The level of the spell in a rare disk is

Asteroid Spider

Monsters Monstrous Compendium Vol. 1: Spelljammer Creatures

creature hasn’t observed the spider move or act, that creature must succeed on a DC 18 Intelligence (Investigation) check to discern that the spider is anything other than an asteroid

living brain functions like a spelljamming helm, allowing the spider to travel through Wildspace without a ship. It often haunts asteroid belts, lurking among normal asteroids until a spelljamming ship

Spell Gem (Quartz)

Magic Items Out of the Abyss

+ the spell’s level. On a failed check, the spell disappears from the gem with no other effect. The quartz spell gem is a rare item and can store up to a 2nd level spell. The stored spell's

the gem. If the spell is of a higher level than you can normally cast, you must make an ability check using your spellcasting ability to determine whether you cast it successfully. The DC equals 10

Spell Gem (Bloodstone)

Magic Items Out of the Abyss

+ the spell’s level. On a failed check, the spell disappears from the gem with no other effect. The bloodstone spell gem is a rare item and can store up to a 3rd level spell. The stored

the gem. If the spell is of a higher level than you can normally cast, you must make an ability check using your spellcasting ability to determine whether you cast it successfully. The DC equals 10

Spell Gem (Amber)

Magic Items Out of the Abyss

+ the spell’s level. On a failed check, the spell disappears from the gem with no other effect. The amber spell gem is a very rare item and can store up to a 4th level spell. The stored

the gem. If the spell is of a higher level than you can normally cast, you must make an ability check using your spellcasting ability to determine whether you cast it successfully. The DC equals 10

Spell Gem (Jade)

Magic Items Out of the Abyss

+ the spell’s level. On a failed check, the spell disappears from the gem with no other effect. The jade spell gem is a very rare item and can store up to a 5th level spell. The stored spell's

the gem. If the spell is of a higher level than you can normally cast, you must make an ability check using your spellcasting ability to determine whether you cast it successfully. The DC equals 10

Spell Gem (Topaz)

Magic Items Out of the Abyss

+ the spell’s level. On a failed check, the spell disappears from the gem with no other effect. The topaz spell gem is a very rare item and can store up to a 6th level spell. The stored

the gem. If the spell is of a higher level than you can normally cast, you must make an ability check using your spellcasting ability to determine whether you cast it successfully. The DC equals 10

Occultant Abacus

Magic Items Acquisitions Incorporated

, turning the occultant abacus into a very rare magic item. While the bead is unused, you know automatically when any creature you can see is about to make an ability check, attack roll, or saving throw with

someone in your franchise within the last 24 hours, then grant the character who slew it a d10. Once within the next hour, that character can add the d10 to an attack roll, ability check, or saving

D&D Beyond

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