Demon Prince

Physiology

Fiend, Celestial

Size

Colossal

Speed

50 ft., fly 120 ft.

Armor class

22 (fallen radiance)

Hit points

312 (16d20 + 144)

Proficiency

+6

• STR 30 +10 save +16
• DEX 18 +4 save +4
• CON 28 +9 save +15
• INT 24 +7 save +7
• WIS 22 +6 save +12
• CHA 26 +8 save +14

Skills

Deception +14 , Insight +12 , Persuasion +14 , Arcana +13 , History +13

Passive Perception

16

Senses

truesight 240 ft., telepathy 5280 ft.

Languages

All

Damage resistances

cold, radiant, bludgeoning, piercing, slashing

Damage immunities

fire, poison, necrotic

Condition immunities

charmed , frightened , poisoned , exhausted , prone

Found in

The Nine Hells

Spells

Channels with CHA. Save DC 22, spell attack +14 .

The prince kept its casting from before the fall. Its spells are the old liturgy run backward, and celestials who hear it recognize the cadence.

• At will Darkness , Detect Thoughts , Grasp , Fear , Suggestion
• 3/day each Dominate Person , Hold Monster , Wall of Fire
• 1/day each Circle of Death , Eyebite , Planar Ally

Traits

• Legendary Resistance

  Three times per day, when it fails a saving throw, it may choose to succeed instead.

• Remembers the Light

  Radiant damage against the prince is halved, and it knows the true name of any celestial it can see.

• Sovereign of a Layer

  Fiends within a mile obey it without exception and cannot be turned or commanded by anything else.

Actions

• Sundering Strike

  +16 to hit · reach 20 ft.

  3d12 + 10 necrotic damage

  Three attacks: two with the blade and one with the open hand. A creature hit by the hand loses its resistances and immunities to radiant and necrotic damage until the end of the prince's next turn.

• The Offer

  DC 22 Charisma save

  The prince names aloud what one creature within 120 feet most wants. On a failed save that creature is Charmed for one hour and takes 10d10 psychic damage the first time it acts against the prince; on a success it takes half that damage.

• Fall

  DC 22 Dexterity save

  A 40-foot radius within 240 feet. Each creature there takes 18d8 fire damage on a failed save, or half as much on a success. Recharges on a 5 or 6.

• Enforce Terms Reaction

  When a creature within 120 feet breaks an agreement it made with the prince, in this fight or in any earlier one, the creature takes 8d10 psychic damage and is Frightened of the prince until the end of its next turn, with no saving throw.

• Regard Legendary

  DC 22 Wisdom save

  The prince looks at one creature it can see. That creature makes a Wisdom saving throw or takes 4d10 psychic damage and has disadvantage on its next attack roll.

• Fiery Flyby Legendary

  The prince flies up to half its speed without provoking opportunity attacks. Each creature it passes within 10 feet of takes 3d6 fire damage.

• Name the Celestial Legendary

  DC 22 Charisma save

  Costs two legendary actions. The prince speaks the true name of one celestial it can see. That creature is Stunned until the end of its next turn unless it succeeds on a Charisma saving throw, and every celestial within 120 feet hears the name said.