Brainstealer Tiamat

# Brainstealer Tiamat

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> ## Brainstealer Tiamat
>*Gargantuan Abberation, Chaotic Evil*
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> - **AC** 25(natural armor)
> - **Hit Points** 615 (30d20 + 300)
> - **Speed** 60 ft., fly 120 ft.
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>|STR|DEX|CON|INT|WIS|CHA|
>|:---:|:---:|:---:|:---:|:---:|:---:|
>|30 (+10)|10 (+0)|30 (+10)|26 (+8)|26 (+8)|28 (+9)|
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> - **Saving Throws** STR +19, DEX +9, WIS +17
> - **Skills** Arcana +17, Perception +26, Religion +17
> - **Damage Resistances** Psychic
> - **Damage Immunities** Acid, Cold, Fire, Lightning, Poison; Bludgeoning, Piercing, and Slashing from Nonmagical Attacks
> - **Condition Immunities**  Blinded, Charmed, Deafened, Frightened, Poisoned, Stunned
> - **Senses**  Darkvision 240 ft., Truesight 120 ft., Passive Perception 36
> - **Languages** Common, Draconic, Infernal, Deep speech, Telepathy 120 ft.
> - **Challenge** Don't even think about it
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>
>***Innate Spellcasting (Psionics)*** . Brainstealer Tiamat is a 20th-level spellcaster. Its innate spellcasting ability is Charisma (spell save DC 26; +18 to hit with spell attacks). It can innately cast the following spells, requiring no components:
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>At will: guidance, mage hand, dissonant whispers
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> 4/day: charm person, command, comprehend languages, sanctuary
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> 3/ day:  crown of madness, phantasmal force
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> 3/day:  clairvoyance, fear, meld into stone
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> 3/day: confusion, stone shape
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> 2/day:  scrying, telekinesis
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> 1/day: disintegrate, mental prison
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> 1/day: crown of stars, forcecage
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> 1/day: feeblemind, power word stun
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> 1/day: psychic scream
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>***Limited Magic Immunity.*** Unless she wishes to be affected, Brainstealer Tiamat is immune to spells of 6th level or lower. She has advantage on saving throws against all other spells and magical effects.
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>***Magic Weapons.*** Brainstealer Tiamat’s weapon attacks are magical.
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>***Multiple Heads.*** Brainstealer Tiamat can take one reaction per turn, rather than only one per round. She also has advantage on saving throws against being knocked unconscious. If she fails a saving throw against an effect that would stun a creature, one of her unspent legendary actions is spent.
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>***Regeneration.*** If Brainstealer Tiamat has at least 1 hit point, she regains 30 hit points at the start of her turn.
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> ### Actions
>***Multiattack.*** Brainstealer Tiamat makes four attacks: two with her claws and two with her tentacles.
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>***Tentacle.*** Melee Weapon Attack: +19 to hit, reach 30 ft., one target. Hit: 33 (5d8 + 10) bludgeoning damage. If the target is a Huge or smaller creature, it is grappled (escape DC 20) and takes 19 (2d8 + 9) psychic damage at the start of each of its turns until the grapple ends. Brainstealer Tiamat can have up to four targets grappled at a time.
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>***Extract Brain.*** Melee Weapon Attack: +19 to hit, reach 30ft., one incapacitated humanoid grappled by the brainstealer Tiamat. Hit 88 (16d10) piercing damage. If this damage reduces the target to 0 hit points, the brainstealer Tiamat kills the target by extracting and devouring its brain.
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> ***Claw.*** Melee Weapon Attack: +19 to hit, reach 15 ft., one target. Hit: 24 (4d6 + 10) slashing damage.
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> ### Legendary Actions
> Brainstealer Tiamat can take 5 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. Brainstealer Tiamat regains spent legendary actions at the start of her turn.
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> ***Tentacle.*** Brainstealer Tiamat makes a tentacle attack.
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> ***Bite.*** Melee Weapon Attack: +19 to hit, reach 20 ft., one target. Hit: 32 (4d10 + 10) slashing damage plus 14 (4d6) psychic damage 
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> ***Psychic Pulse. (Costs 2 Actions)*** Brainstealer Tiamat sends a psychic pulse in a 90-foot cone. Each creature in that area must make a DC 27 Intelligence saving throw, taking 77 (22d6) psychic damage on a failed save, or half as much damage on a successful one.