Hierophant of the Comet

(The Book of Many Things)

Medium humanoid (warlock), Chaotic Evil

Armor Class15 (breastplate)
Hit Points153 (18d8 + 72)
Speed30 ft.
STRDEXCONINTWISCHA
12 (+1) 13 (+1) 18 (+4) 15 (+2) 17 (+3) 20 (+5)
Saving ThrowsCha +9, Wis +7
SkillsArcana +10, Deception +9, Persuasion +9, Religion +6
Damage Vulnerabilities—
Damage Resistancespsychic
Damage Immunities—
Condition Immunities—
Sensestruesight 30 ft., passive Perception 13
LanguagesCommon plus any two languages, telepathy 60 ft.
Challenge11

Traits

Comet's Voice (1/Day).

The hierophant can cast Contact Other Plane, using Charisma as the spellcasting ability.

Magic Resistance.

The hierophant has advantage on saving throws against spells and other magical effects.

Thought Shield.

The hierophant's thoughts can't be read by any means unless the hierophant allows it.

Actions

Multiattack.

The hierophant makes two Herald's Axe attacks or three Comet Blast attacks.

Herald's Axe.

Melee Attack Roll: +9 to hit, reach 5 ft., one target. Hit: 11 (1d12 + 5) slashing damage plus 10 (3d6) necrotic damage.

Comet Blast.

Ranged Spell Attack Roll: +9 to hit, range 120 ft., one target. Hit: 16 (2d10 + 5) force damage.

All-Consuming Star (Recharge 6).

The hierophant conjures a manifestation of the All-Consuming Star: brilliant light and haunting screams that fill a 20-foot-radius sphere centered on a point the hierophant can see within 60 feet of itself. Each creature within the sphere has the blinded and deafened conditions. Each creature that enters the sphere for the first time on a turn or starts its turn there must make a DC 17 Wisdom saving throw. On a failed save, a creature takes 27 (6d8) psychic damage and has the incapacitated condition until the start of its next turn. On a successful save, a creature takes half as much damage only. The manifestation persists until the hierophant dies, has the incapacitated condition, uses a bonus action to end the effect, or uses this action again.

Spellcasting

The hierophant casts one of the following spells, using Charisma as the spellcasting ability (spell save DC 17):

At will: Detect Thoughts, Mage Hand, Thaumaturgy

1 each/day: Dimension Door, Mass Suggestion