Medium Aberration, Chaotic Evil
Armor Class 21 (unnatural armor)
Hit Points 375 (25d20 + 125)
Speed 30 ft., Fly 60 ft.
STR
20 (+5)
DEX
20 (+5)
CON
18 (+4)
INT
30 (+10)
WIS
24 (+7)
CHA
24 (+7)
Saving Throws CON +11, INT +17, WIS +14, CHA +14
Skills Arcana +18
Damage Resistances Cold, Fire, Thunder
Damage Immunities Psychic; Bludgeoning, Piercing, and Slashing from Nonmagical Attacks that aren't Adamantine or Silvered
Condition Immunities Blinded, Charmed, Exhaustion, Frightened, Poisoned, Stunned
Senses Truesight 120 ft., Passive Perception 21
Languages All, Telepathy 150 ft.
Challenge 21 (33,000 XP)
Proficiency Bonus +7
Traits

Innate Spellcasting. Corvus Bane’s spellcasting ability is Intelligence (spell save DC 26, +18 to hit with spell attacks). He can innately cast the following spells, requiring no material components:

At will: counterspell, detect magic, detect thoughts, dispel magic, eyebite, fireball, lightning bolt, shield

3/day each: chain lightning, create undead, dream, hold monster, mass suggestion, scrying

1/day each: foresight, gate, power word kill, teleport

Legendary Resistance (3/Day). If Corvus Bane fails a saving throw, he can choose to succeed instead.

Magic Resistance. Corvus Bane has advantage on saving throws against spells and other magical effects.

Master of the Mind. Corvus Bane has advantage on Constitution saving throws to maintain concentration.

Actions

Multiattack. Corvus Bane makes three attacks with Mind Melt or two attacks with Arcane Burst.

Mind Melt. Ranged Spell Attack: +18 to hit, range 90 ft., one target. Hit: 15 (1d10 + 10) psychic damage.

Arcane Burst. Melee Weapon Attack: +12 to hit, reach 5 ft., one target. Hit: 36 (5d12 + 4) force damage.

Apocalypse (Recharges after 1d4 days). Corvus Bane pulls corrupted stars from the firmament that impact the ground at three different points he can see within 1 mile of him. Each creature in a 40-foot-radius sphere centered on each point must make a DC 21 Dexterity saving throw, taking 54 (9d12) force damage on a failed save or half as much damage on a successful one. A creature in the area of more than one impact is affected only once. The area of each impact then acts as an antimagic field for 1 hour. Corvus Bane and spells he casts are unaffected by these fields.

Legendary Actions

Corvus Bane can take 3 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. Corvus Bane regains spent legendary actions at the start of his turn.

Attack. Corvus Bane makes one attack with his Mind Melt or Arcane Burst.

Psychic Disturbance (Costs 2 Actions). Corvus Bane targets a creature within 90 feet of him who is concentrating on a spell. The target must succeed on a DC 21 Constitution saving throw or its concentration is broken on the spell, and Corvus Bane gains 10 temporary hit points per level of that spell.

Dreadful Whispers (Costs 3 Actions). Corvus Bane whispers a terrible secret into the mind of a creature he can see within 60 feet of him. The target must succeed on a DC 21 Wisdom saving throw or expend one of its spell slots of 4th level or lower and deal 18 (3d12) psychic damage to each creature within 30 feet of it. A creature that fails the saving throw but can’t expend a spell slot is instead stunned until the end of its next turn.

Monster Tags: Psionic

chucklebean71

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