Elder Brain Dragon (5e)

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 5th edition Pointer  + 

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Elder Brain Dragon (pointer) [1] [2]
Gargantuan Aberration (Mind Flayers), Lawful Evil
Armor Class: 17 (natural armor)
Hit Points: 350
Speed: 40 ft., fly 80 ft. (hover)
Saving Throws: Con, Int, Wis, Cha
Skills: Arcana, Insight, Perception
Senses: blindsight 120 ft., passive Perception 28
Languages: Deep Speech, Draconic, telepathy 5 miles
Habitat: Underdark
Plane: Underdark
Challenge: 22 (41,000 xp)Proficiency Bonus (PB): +7


Legendary Resistance (4/Day). [3] If the dragon fails a saving throw, it can choose to succeed instead.

Siege Monster. [3] The dragon deals double damage to objects and structures.

Unusual Nature.



Bite. Melee Weapon Attack

Claw. Melee Weapon Attack

Tentacle. Melee Weapon Attack

Tadpole Brine Breath (Recharge 5-6).

Legendary Actions

The aberration can take 3 legendary actions, choosing from the options below. Only one legendary action option can be used at a time and only at the end of another creature’s turn. The aberration regains spent legendary actions at the start of its turn.


Shatter Concentration (Costs 2 Actions).

Unofficial Description: Dragon transformed by a parasitic Illithid Elder Brain to become its host.

Sources and Notes[edit]

  1. James Wyatt, et. al. (26 October 2021). Fizban's Treasury of Dragons. (5e) Wizards of the Coast. ISBN 978-0-7869-6730-8. p. 194. Licensed: © Wizards of the Coast (used under 'fair use' clause).
  2. habitat - unofficial. [user]
  3. 3.0 3.1 Trait matches the trait of the same name in the 5th ed. SRD. - Wizards RPG Team (6 May 2015). SRD-OGL v5.1. (5e) Wizards of the Coast. Licensed: OGL.

Back to Main Page5eMonsterAberrationMind Flayer
Back to Main Page5eMonsterDragon

AlignmentLawful Evil +
AuthorFizban's Treasury of Dragons +
CRval22 +
Canontrue +
Challenge Rating22 +
Creature NameElder Brain Dragon +
Experience Points41,000 +
FeaturesLegendary Resistance +, Siege Monster +, Unusual Nature +, Multiattack +, Bite +, Claw +, Tentacle +, Tadpole Brine Breath + and Shatter Concentration +
HabitatUnderdark +
Hit Points350 +
Legendary Monstertrue +
NameElder Brain Dragon +
PlaneUnderdark +
PublicationFizban's Treasury of Dragons +
SizeGargantuan +
SortTextMind Flayer Elder Brain Dragon +
SubtypeMind Flayer +
SummaryDragon transformed by a parasitic Illithid Elder Brain to become its host. +
TypeAberration +