Two-Headed Brainstealer Dragon

Armor Class 19

Hit Points 297 (22d12 + 154)

Speed 40 ft., fly 80 ft.

Initiative +0

Saving Throws Con +13, Int +11, Wis +8, Cha +11

Skills Arcana +11, History +11, Perception +8

Damage Resistances bludgeoning, piercing, and slashing from nonmagical weapons

Damage Immunities acid

Senses darkvision 120 ft., passive Perception 18

Languages Common, Deep Speech, Draconic, Undercommon, telepathy 120 ft.

Challenge 18 (20,000 XP)

Multiattack. The dragon makes four attacks: two with its claws and two with its tentacles.

Claw. Melee Weapon Attack: +13 to hit, reach 10 ft., one target. Hit: 17 (3d6 + 7) slashing damage.

Tail. Melee Weapon Attack: +13 to hit, reach 15 ft., one target. Hit: 23 (3d10 + 7) bludgeoning damage.

Tentacles. Melee Weapon Attack: +13 to hit, reach 15 ft., one creature. Hit: 27 (4d10 + 5) psychic damage. If the target is Huge or smaller, it is grappled (escape DC 21) and must succeed on a DC 19 Intelligence saving throw or be stunned until the grapple ends.

Extract Brain. Melee Weapon Attack: +13 to hit, reach 15 ft., each incapacitated humanoid grappled by the dragon. Hit: 62 (10d10 + 7) piercing damage. If this damage reduces the target to 0 hit points, the dragon kills the target by extracting and devouring its brain.

Mind Blast (Recharge 5-6). The dragon magically emits psychic energy in a 60-foot cone. Each creature in that area must succeed on a DC 19 Intelligence saving throw or take 50 (10d8 + 5) psychic damage and be stunned for 1 minute. A creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success.

Detect. The dragon makes a Wisdom (Perception) check.

Tail Attack. The dragon makes one tail attack.

Extract Brain (Costs 3 Actions). The dragon makes one extract brain attack.