XV

Xyl'Xothel the Void-Weaver

MediumAberrationCR14
A renegade Mind Flayer Arcanist who has fused its consciousness with a living Nautiloid, serving as both captain and arcane engine.

Ability Scores

STR11+0
DEX14+2
CON18+4
INT22+6
WIS17+3
CHA19+4

Combat Statistics

AC
18 (Mage Armor and Bracers of Defense)
HP
195 (23d8 + 92)
Proficiency Bonus
+5

Saving Throws

CON+9
INT+11
WIS+8
CHA+9

Skills

Arcana+16
History+11
Insight+8
Perception+8
Stealth+7
Type
Aberration
Size
Medium
Role
Solo
Alignment
Lawful Evil

Combat Info

Threat Level
14
Party Level
11 (Hard) or 14 (Medium)
Movement
30 ft. walk, 30 ft. fly (hover)
Senses
Darkvision 120 ft., Passive Perception 18
Languages
Deep Speech, Undercommon, Abyssal, Infernal, Telepathy 120 ft.
Rarity
Unique

Defenses

Resistances
Psychic
Immunities
Charmed, Frightened
Weaknesses
None
Tags
Illithid
Wizard
Planar
Boss
Traits
Magic Resistance(Passive)

Xyl'Xothel has advantage on saving throws against spells and other magical effects.

Nautiloid Link(Passive)

While aboard its ship, Xyl'Xothel cannot be surprised and can cast spells through the ship's bulkhead as if they were origin points within 60 feet.

Legendary Resistance (3/Day)(Passive)

If Xyl'Xothel fails a saving throw, it can choose to succeed instead.

Actions
Tentacles

Melee Weapon Attack: +11 to hit, reach 5 ft., one creature. Hit: 20 (4d6 + 6) psychic damage. If the target is Medium or smaller, it is grappled (escape DC 16) and must succeed on a DC 19 Intelligence saving throw or be stunned until this grapple ends.

Extract Brain

Melee Weapon Attack: +11 to hit, reach 5 ft., one incapacitated humanoid grappled by Xyl'Xothel. Hit: 55 (10d10) piercing damage. If this damage reduces the target to 0 hit points, Xyl'Xothel kills the target by extracting and consuming its brain.

Mind Blast (Recharge 5-6)

Xyl'Xothel 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 28 (5d8 + 6) 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.

Reactions
Void Shift

When hit by an attack, Xyl'Xothel can use its reaction to teleport up to 15 feet to an unoccupied space it can see, potentially causing the attack to miss.

Legendary Actions
Cantrip

Xyl'Xothel casts a cantrip.

Psionic Warp (Costs 2 Actions)(Costs 2 Actions)

Xyl'Xothel targets one creature it can see within 60 feet. The target must succeed on a DC 19 Charisma saving throw or be teleported to an empty space of Xyl'Xothel's choice within 30 feet.

Ship's Wrath (Costs 3 Actions)(Costs 3 Actions)

Xyl'Xothel commands the Nautiloid to vent psychic steam in a 20-foot radius centered on a point the Arcanist can see. Each creature in the area must make a DC 19 Constitution save or take 21 (6d6) cold damage and be restrained by crystalline frost.

Spells

Mage ArmorLevel 1(Abjuration)

AC becomes 13 + Dex modifier (Cast before combat).

ShieldLevel 1(Abjuration)

+5 AC as a reaction.

Mirror ImageLevel 2(Illusion)

Creates three illusory duplicates.

CounterspellLevel 3(Abjuration)

Attempts to interrupt a creature in the process of casting a spell.

FireballLevel 3(Evocation)

Deals 8d6 fire damage in a 20ft sphere (Flavored as psychic fire).

Wall of ForceLevel 5(Evocation)

Creates an invisible, indestructible wall.

DisintegrateLevel 6(Transmutation)

Deals 10d6 + 40 force damage; disintegrates if reduced to 0 HP.

Plane ShiftLevel 7(Conjuration)

Teleports to a different plane or attempts to banish a creature.

FeeblemindLevel 8(Enchantment)

Reduces target's INT and CHA to 1 on failed save.

Gear & Equipment

Staff of the Void
Magic ItemArtifact

Acts as an Arcane Focus and provides +2 to spell save DC (included in stats).

Bracers of Defense
Magic ItemRare

+2 AC while wearing no armor.

Mind-Cipher Ring
Magic ItemRare

Allows the wearer to read all languages and prevents magical eavesdropping.

Feats
War Caster
Resilient (Constitution)
Augmentations
Tethered Consciousness: Xyl'Xothel can use the Nautiloid's sensors to gain Truesight out to 60 feet while on the bridge.

Statblock Notes

  • Xyl'Xothel uses its Intelligence modifier for its tentacle attacks.
  • The spell save DC is 19 (8 + 5 PB + 6 INT).
  • Concentration checks are made at +9 with advantage.