Medium to Huge humanoid, lawful evil

Armor Class: 18

Hit Points: 232

Speed: 20 ft , fly: 60 ft , can hover

STR

9 -1

DEX

10 +0

CON

13 +1

INT

12 +1

WIS

18 +4

CHA

15 +2

Saving Throws: WIS, CHA

Skills:

+12 Perception, +12 Insight, +8 Persuasion, +8 Intimidation, +6 Arcane, +6 Religion (Occult),

Damage Vulnerabilities: Wyrd

Damage Resistances: Force

Condition Immunities: Blinded, Charmed, Unconscious,

Senses:

Truesight 60 ft.

Languages: Ur-Nox

Challenge Rating: 20 ( 7500 XP)

Proficiency Bonus: +8

Bonus Actions

Ravenous Swarm. Swain may command his flock to attack target creatures he can see. Swain commands 10 ravens to attack up to 10 targets. On a hit, Swain increases his maximum hit points by half the total damage dealt by his ravens and then regains hit points equal to the total amount of damage dealt hy his ravens.

Eldrich Raven. AC 8, HP 2, Speed (Flying) 60 ft., Truesight 60 feet

Talon. Melee attack roll +6, reach 5ft., Hit 4 (1d4+3) force damage.

Reactions

Raum's Embrace. Swain calls upon his flock to target vulnerable creatures. All creatures of his choice with the conditions Incapacitated, Paralyzed, Petrified, Restrained, Stunned or Unconscious within 60 feet of him must succeed a Strength saving throw or be moved up to 15 feet towards Swain.

Legendary Actions

Demonic Ascension. Swain transforms, unleashing a burst of eldrich energy around him as he sprouts massive black wings from his back and grows in size. All creatures within 20 feet of Swain must make a Dexterity saving throw, taking 8d8 force damage on a failed save or half as much on a successful save.

While transformed, Swain is now Huge and hovers up to 10 feet above the ground. He has a fly speed of 60 feet and eldrich energy continues to surround him. Creatures who start their turn within 20 feet of Swain takes 1d8 force damage healing Swain for the same amount. If no creatures were damaged in this way since Swain's last turn, he instead takes 2d8 force damage and reduces his maximum hit points by the same amount.

Demonic Burst. While transformed, Swain may cause another explosion of eldrich energy around him whenever he reduces a creature to 0 hit points. Creatures within 20 feet must make a Dexterity saving throw, taking 8d8 force damage on a failed save or half as much on a successful one.

Usual Tactics

Swain is not afraid of fighting his opponents personally, but he is also strategic with his resources. If odds are against him, he will relocate to more advantageous positions. Normally he is surrounded by soldiers loyal to him and will issue commands to them before doing anything drastic himself. While powerful magically, Swain uses his words to disarm his enemies and inspire his allies. His power is a last resort.