Sources
CR
Type
Size
Alignment
Movement

Gisela

Large Celestial, Lawful Good

Armor Class 19 (natural armor)
Hit Points 200 (16d10 + 112)
Speed 40 ft., fly 120 ft.
STR
24
+7
DEX
20
+5
CON
24
+7
INT
19
+4
WIS
22
+6
CHA
25
+7
Saving Throws CON +12, WIS +11, CHA +12
Skills Perception +11
Damage Resistances radiant; bludgeoning, piercing, slashing, from nonmagical attacks
Condition Immunities Charmed, Exhaustion, Frightened
Senses truesight 120 ft., passive Perception 21
Languages all, telepathy 120 ft.
Challenge 16 (15,000 XP)

Traits

Angelic Weapons. The Gisela's weapon attacks are magical. When the planetar hits with any weapon, the weapon deals an extra 5d8 radiant damage (included in the attack).

Divine Awareness. The Gisela knows if it hears a lie.

Magic Resistance. The Gisela has advantage on saving throws against spells and other magical effects.

Goldnight Menace. As an action, an angel of Flight Goldnight can strike fear into the hearts of its enemies. Each creature of the angel's choice that is within 120 feet of it and is aware of it must succeed on a Wisdom saving throw or become frightened for 1 minute. The DC for this saving throw is the same as for the angel's Innate Spellcasting trait. A creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success. If a creature's saving throw is successful or the effect ends for it, the creature is immune to that angel's Goldnight Menace for the next 24 hours.

Spellcasting

Innate Spellcasting. The Gisela's spellcasting ability is Charisma (spell save DC 20). The planetar can innately cast the following spells, requiring no material components:

At will: detect evil and good, invisibility (self only)

1/day each: commune, control weather, insect plague

3/day each: blade barrier, dispel evil and good, flame strike, raise dead

Actions

Multiattack. The Gisela makes two melee attacks.

Greatsword. Melee Weapon Attack: +12 to hit, reach 5 ft., one target. Hit:21 (4d6 + 7) slashing damage plus 22 (5d8) radiant damage.

Healing Touch (4/Day). The Gisela touches another creature. The target magically regains 30 (6d8 + 3) hit points and is freed from any curse, disease, poison, blindness, or deafness.

Lore

Avacyn was the archangel of Innistrad, revered across the plane as the source of hope, of protection, and of the Blessed Rest—a peaceful eternity of slumber in the grave. She offered the faithful magical wards against vampires and werewolves, a tranquil oblivion rather than the damned fate of a tormented spirit or undead abomination, and a distant hope that someday, their descendants might live in an Innistrad free from all the horrors of darkness.