Brain of an Imprisoned Demon

Tiny fiend, chaotic evil

Armor Class 15 (natural armor)
Hit Points 103 (23d4 + 46)
Speed 5 ft.

5 (-3) 16 (+3) 14 (+2) 21 (+5) 15 (+2) 17 (+3)

Saving Throws Constitution +5, Intelligence +9, Wisdom +6
Skills Arcana +13, Deception +7, History +13, Persuasion +7
Damage Resistances cold, fire, lightning; bludgeoning, piercing, and slashing from nonmagical attacks
Damage Immunities poison
Condition Immunities poisoned
Senses blindsight 90 ft. (blind beyond this radius), passive Perception 12
Languages all, telepathy 120 ft.
Challenge 10 (5,900 XP)

Special Traits


  • Multiattack. The brain uses its Brain Lock and makes three Mental Blast attacks.
  • Mental Blast. Ranged Spell Attack: +9 to hit, range 90 ft., one target. Hit: 18 (4d8) psychic damage.
  • Brain Lock. The brain targets one creature it can see within 30 feet. That creature must succeed on a DC 17 Intelligence saving throw or its Intelligence score is reduced by 1d4. The target is incapacitated if this reduces its Intelligence to 0. Otherwise, the reduction lasts until the target finishes a short or long rest.
  • Concussion (recharge 5-6). The brain chooses a point it can see within 90 feet of it. Each creature within 10 feet of that point must make a DC 17 Dexterity saving throw, taking 45 (10d8) thunder damage on a failed save, or half as much damage on a successful one. If a creature fails the saving throw by 5 or more, it is also knocked prone.
Section 15: Copyright Notice

Tegel Manor © 2019, Frog God Games, LLC; Authors: Bill Webb & Thom Wilson with additional material by Gabor Lux