Cael’Zherun, the First Betrayed

Legendary Resistance (3/Day).

If Cael’Zherun fails a saving throw, he can choose to succeed instead.

Aura of Fear and Fury.

Creatures of Cael’Zherun’s choice that start their turn within 120 feet must make a DC 26 Wisdom saving throw:

• On a failure, the creature is Frightened for 1 minute.

• While frightened, it takes 10 (3d6) psychic damage at the start of each of its turns.

• If the save fails by 10 or more, the creature is also compelled into berserk rage, attacking the nearest creature on its turn.

• A creature that succeeds is immune to the aura for 24 hours.

Innate Spellcasting.

Spellcasting ability is Charisma (spell save DC 26, +18 to hit). He can cast the following spells innately, requiring no components:

At will: Cause Fear, Wrathful Smite, Dispel Magic, Counterspell, Detect Thoughts, Wall of Force
3/day each: Fear, Spirit Shroud (necrotic), Dominate Monster, Feeblemind, Time Stop, Meteor Swarm
1/day each: Wish, Power Word Kill, Foresight, Imprisonment, Symbol (fear)

Divine Paradox.

Spells cast within 120 feet of Cael’Zherun have their casting time increased by 1 action (minimum 1 action). This does not affect his own spells.

Unbound Radiance (Recharge 5–6).

Cael’Zherun radiates a corrupted divine nova in a 90-foot radius.
Creatures of his choice must make a DC 26 Constitution save or take:

• 120 (20d10) radiant damage, and

• 120 (20d10) necrotic damage, and

• Become blinded and restrained by radiant chains (save ends at the end of each of their turns).
  Half damage and no conditions on a successful save.

Multiattack.

Cael’Zherun makes three attacks: one with Ashen Blade, one Wing Slam, and one Shattered Voice.

Ashen Blade (Melee Weapon Attack):

+18 to hit, reach 10 ft., one target.
Hit: 45 (6d10 + 10) slashing + 36 (6d12) necrotic.
If the target is frightened, they take double necrotic damage.

Wing Slam (Melee Weapon Attack):

+18 to hit, reach 15 ft., each creature in a 20-ft. cone.
Hit: 40 (6d8 + 10) force damage.
DC 26 Strength save or be knocked prone and pushed 30 feet.

Shattered Voice (Recharge 5–6):

Cael’Zherun utters a name of power predating the gods.
Each creature within 60 feet must make a DC 26 Wisdom saving throw:

• On a failure: if they have 100 HP or fewer, they are reduced to 0 HP.

• On success: they take 40 (8d10) psychic damage and are stunned until the end of their next turn.

LEGENDARY ACTIONS (3/turn)

1. Crimson Command.

Force a creature within 120 feet to reroll an attack or saving throw and take the lower result.

2. Wings of Wrath.

Cael’Zherun moves up to 60 feet without provoking opportunity attacks.

3. Judgment of Flame (Cost 2).

Target one creature within 60 feet.
The target must make a DC 26 Charisma saving throw:

• On a failure, it takes 66 (12d10) fire and psychic damage, is blinded, knocked prone, and can’t take reactions until the end of Cael’Zherun’s next turn.