being brain diffusing cast reaction

Counterspell

Spells Player’s Handbook

Action, or Reaction used to cast it is wasted. If that spell was cast with a spell slot, the slot isn’t expended.

Staff of Charming

Magic Items Dungeon Master’s Guide

This staff has 10 charges. While holding the staff , you can use any of its properties: Cast Spell. You can expend 1 of the staff’s charges to cast Charm Person, Command, or Comprehend

Languages from it using your spell save DC. Reflect Enchantment. If you succeed on a saving throw against an Enchantment spell that targets only you, you can take a Reaction to expend 1 charge from the

Rod of Absorption

Magic Items Dungeon Master’s Guide

While holding this rod, you can take a Reaction to absorb a spell that is targeting only you and doesn’t create an area of effect. The absorbed spell’s effect is canceled, and the spell

’s energy—not the spell itself— is stored in the rod. The energy has the same level as the spell when it was cast. A canceled spell dissipates with no effect, and any resources used to

Ioun Stone

Magic Items Dungeon Master’s Guide

;Absorption (Very Rare). While this pale lavender ellipsoid orbits your head, you can take a Reaction to cancel a spell of level 4 or lower cast by a creature you can see. A canceled spell has no effect

Stone of Greater Absorption;Greater Absorption (Legendary). While this marbled lavender and green ellipsoid orbits your head, you can take a Reaction to cancel a spell of level 8 or lower cast by a

Find Familiar

Spells Player’s Handbook

touch, your familiar can deliver the touch. Your familiar must be within 100 feet of you, and it must take a Reaction to deliver the touch when you cast the spell. Combat. The familiar is an ally to

can see through the familiar’s eyes and hear what it hears until the start of your next turn, gaining the benefits of any special senses it has. Finally, when you cast a spell with a range of

Staff of the Magi

Magic Items Dungeon Master’s Guide

. Spell Absorption. While holding the staff , you have Advantage on saving throws against spells. In addition, you can take a Reaction when another creature casts a spell that targets only you. If

number of charges above 50, the staff explodes as if you activated its Retributive Strike (see below). Spells. While holding the staff, you can cast one of the spells on the following table from it

War Caster

Feats Player’s Handbook

leaving your reach, you can take a Reaction to cast a spell at the creature rather than making an Opportunity Attack. The spell must have a casting time of one action and must target only that creature

Holy Star of Mystra

Spells Forgotten Realms: Heroes of Faerûn

You create a glowing mote of energy that hovers above you for the duration. The mote sheds Bright Light in a 5-foot radius and Dim Light for an additional 5 feet. When you cast this spell and as a

of level 7 or lower that targeted only you and didn't create an area of effect, you can take a Reaction to deflect that spell back at the spell's caster; the caster makes a saving throw against that spell using that caster's own spell save DC.

Spellfire Storm

Spells Forgotten Realms: Heroes of Faerûn

. On a failed save, the spell dissipates with no effect, and the action, Bonus Action, or Reaction used to cast it is wasted. If that spell was cast with a spell slot, the slot isn’t expended

. When you cast this spell, you can designate creatures to be unaffected by it. Casting as a Circle Spell. In addition to the spell’s usual components, you must provide a special component (a

Aberrant Dragonmark

Feats Eberron: Forge of the Artificer

take a Reaction to roll 1d4 and add the number rolled to the save, potentially turning the failure into a success. Once you’ve used this benefit, you can’t use it again until you finish a

Long Rest. Aberrant Magic. You know one cantrip of your choice from the Sorcerer spell list. Also, choose a level 1 spell from that spell list. You always have that spell prepared. You can cast it once

Greater Mark of Passage

Feats Eberron: Forge of the Artificer

feat to cast Misty Step without a spell slot, you can also choose up to two willing creatures you can see within 30 feet of yourself before you teleport. Each target can then take a Reaction to also teleport up to 30 feet to an unoccupied space it can see.

Mythal Touched

Feats Forgotten Realms: Heroes of Faerûn

flame, takes 1d4 Fire damage, and is burning. 20 The triggering spell dissipates with no effect, and the action, Bonus Action, or Reaction used to cast it is wasted. If that spell was cast with a spell slot, the slot isn’t expended.

saving throw against a spell, you can take a Reaction to roll on the Mythal-Touched Magic table to create a magical effect. If an effect requires a saving throw, the DC equals 8 plus the modifier of

Brain in a Jar (Noncore)

Monsters Lost Laboratory of Kwalish

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

creature is protected by a mind blank spell. Magic Resistance. The brain in a jar has advantage on saving throws against spells and other magical effects. Innate Spellcasting (Psionics). The brain in

Elder Brain Legacy

Monsters Volo's Guide to Monsters

this manner. Innate Spellcasting (Psionics). The elder brain’s innate spellcasting ability is Intelligence (spell save DC 18). It can innately cast the following spells, requiring no components

brain targets a creature within 120 feet of it with which it has a psychic link. The elder brain breaks the creature’s concentration on a spell it has cast. The creature also takes 1d4

Mind Flayer Legacy

Monsters Monster Manual (2014)

Intelligence (spell save DC 15). It can innately cast the following spells, requiring no components: At will: detect thoughts, levitate 1/day each: dominate monster, plane shift (self only)Tentacles

this grapple ends. Extract Brain. Melee Weapon Attack: +7;{"diceNotation":"1d20+7","rollType":"to hit","rollAction":"Extract Brain"} to hit, reach 5 ft., one incapacitated humanoid grappled by the

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

acquire the gem. If the slaad fails its saving throw against imprisonment, the spell can transfer the gem to the spellcaster's open hand, instead of imprisoning the slaad. A wish spell, if cast in

Mind Flayer Arcanist Legacy

Monsters Monster Manual (2014)

spellcasting ability is Intelligence (spell save DC 15). It can innately cast the following spells, requiring no components: At will: detect thoughts, levitate 1/day each: dominate monster, plane shift (self

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

Ruxithid the Chosen

Monsters Phandelver and Below: The Shattered Obelisk

mind flayers, who he believes are gods.PsychicBrain Tendrils (Recharge 5–6);{"diceNotation":"1d6", "rollType":"recharge", "rollAction":"Brain Tendrils"}. Ruxithid unleashes a flurry of crystalline

psychic tendrils from his brain, targeting one creature that he can see within 30 feet of himself. The target must succeed on a DC 15 Dexterity saving throw or take 9 (2d8);{"diceNotation":"2d8

Elder Brain

Monsters Mordenkainen Presents: Monsters of the Multiverse

it has a psychic link. The elder brain breaks the creature’s concentration on a spell it has cast. The creature also takes 2 (1d4);{"diceNotation":"1d4","rollType":"damage","rollAction":"Break

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

Mind Flayer Lich (Illithilich) Legacy

Monsters Volo's Guide to Monsters

effects. Innate Spellcasting (Psionics). The lich’s innate spellcasting ability is Intelligence (spell save DC 20). It can innately cast the following spells, requiring no components. At will

ends. Extract Brain. Melee Weapon Attack: +12;{"diceNotation":"1d20+12","rollType":"to hit","rollAction":"Extract Brain"} to hit, reach 5 ft., one incapacitated humanoid grappled by the lich. Hit: 55

Ulitharid

Monsters Mordenkainen Presents: Monsters of the Multiverse

: a larger and more potent mind flayer with six tentacles. Illithids innately recognize that an ulitharid’s survival is more important than their own. An elder brain’s reaction to the rise

in this manner. Magic Resistance. The ulitharid has advantage on saving throws against spells and other magical effects. Psionic Hub. If an elder brain establishes a psychic link with the ulitharid

Ulitharid Legacy

Monsters Volo's Guide to Monsters

in this manner. Magic Resistance. The ulitharid has advantage on saving throws against spells and other magical effects. Psionic Hub. If an elder brain establishes a psychic link with the ulitharid

, the elder brain can form a psychic link with any other creature the ulitharid can detect using its Creature Sense. Any such link ends if the creature falls outside the telepathy ranges of both the

Neh-thalggu

Monsters Spelljammer: Adventures in Space

brains to cast the spell, as indicated: 1/day each: arms of Hadar (1 brain), detect magic (2 brains), magic missile (3 brains), Tenser's floating disk (4 brains), darkness (5 brains), hold person (6

Brain Dump. Whenever the neh-thalggu consumes a brain, it gains the magical ability to speak and understand languages known by the brain’s previous owner. Unusual Nature. The neh-thalggu doesn

Gray Slaad (control gem variant) Legacy

Monsters Monster Manual (2014)

innately cast the following spells, requiring no material components: At will: detect magic, detect thoughts, invisibility (self only), mage hand, major image 2/day each: fear, fly, fireball

. 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

Death Slaad (control gem variant) Legacy

Monsters Monster Manual (2014)

","rollType":"to hit","rollAction":"Innate Spellcasting"} to hit with spell attacks). The slaad can innately cast the following spells, requiring no material components: At will: detect magic, detect

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

Green Slaad (control gem variant) Legacy

Monsters Monster Manual (2014)

cast the following spells, requiring no material components: At will: detect magic, detect thoughts, mage hand 2/day each: fear, invisibility (self only) 1/day: fireball Magic Resistance. The slaad has

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

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

acquire the gem. If the slaad fails its saving throw against imprisonment, the spell can transfer the gem to the spellcaster's open hand, instead of imprisoning the slaad. A wish spell, if cast in

Gnome Squidling

Monsters Icewind Dale: Rime of the Frostmaiden

Innate Spellcasting (Psionics). The squidling’s innate spellcasting ability is Intelligence (spell save DC 7). It can innately cast levitate at will, requiring no components. Magic Resistance

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

Intellect Devourer Legacy

Monsters Monster Manual (2014)

damage. Devour Intellect. The intellect devourer targets one creature it can see within 10 feet of it that has a brain. The target must succeed on a DC 12 Intelligence saving throw against this magic or

the contest, the intellect devourer magically consumes the target’s brain, teleports into the target’s skull, and takes control of the target’s body. While inside a creature, 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

creature is protected by a mind blank spell. Magic Resistance. The brain in a jar has advantage on saving throws against spells and other magical effects. Innate Spellcasting (Psionics). The brain in

Eater of Knowledge

Monsters Planescape: Adventures in the Multiverse

":"damage", "rollAction":"Slam", "rollDamageType":"bludgeoning"} bludgeoning damage. Extract Brain. Melee Weapon Attack: +7;{"diceNotation":"1d20+7", "rollType":"to hit", "rollAction":"Extract Brain

"} to hit, reach 5 ft., one Humanoid with the incapacitated condition. Hit: 45 (10d8);{"diceNotation":"10d8", "rollType":"damage", "rollAction":"Extract Brain", "rollDamageType":"piercing"} piercing

Mind Flayer Psion Legacy

Monsters Volo's Guide to Monsters

spellcasting ability is Intelligence (spell save DC 15; +7;{"diceNotation":"1d20+7","rollType":"to hit","rollAction":"Innate Spellcasting"} to hit with spell attacks). It can innately cast the following

until this grapple ends. Extract Brain. Melee Weapon Attack: +7;{"diceNotation":"1d20+7","rollType":"to hit","rollAction":"Extract Brain"} to hit, reach 5 ft., one incapacitated humanoid grappled by

Gnome Ceremorph

Monsters Icewind Dale: Rime of the Frostmaiden

Innate Spellcasting (Psionics). The ceremorph’s innate spellcasting ability is Intelligence (spell save DC 15). It can innately cast the following spells, requiring no components: At will

grapple ends. Extract Brain. Melee Weapon Attack: +7;{"diceNotation":"1d20+7","rollType":"to hit","rollAction":"Extract Brain"} to hit, reach 5 ft., one incapacitated humanoid grappled by the

Elder Brain Dragon

Monsters Fizban's Treasury of Dragons

dragon makes one Tentacle attack. Shatter Concentration (Costs 2 Actions). The dragon targets a creature it is grappling. The target’s concentration on a spell it has cast or an ability it is

available to those who must contend with a mind flayer colony is the limit of its reach, which spreads only as far as the influence of the colony’s elder brain. But this small solace withers

Staff of Charming Legacy

Magic Items Basic Rules (2014)

While holding this staff, you can use an action to expend 1 of its 10 charges to cast charm person, command, or comprehend languages from it using your spell save DC. The staff can also be used as a

property of the staff again until the next dawn. If you succeed on a save against an enchantment spell that targets only you, with or without the staff's intervention, you can use your reaction to

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