Sources
CR
Type
Size
Alignment
Movement

Deathpact Angel

Medium Celestial, Lawful Evil

Armor Class 18 (natural armor)
Hit Points 175 (27d8 + 54)
Speed 30 ft., fly 90 ft.
STR
16
+3
DEX
18
+4
CON
14
+2
INT
19
+4
WIS
20
+5
CHA
23
+6
Saving Throws INT +9, WIS +10, CHA +11
Skills Insight +10, Intimidation +11, Perception +10, Persuasion +11
Damage Resistances necrotic, radiant; bludgeoning, piercing, slashing, from nonmagical attacks
Condition Immunities Charmed, Exhaustion, Frightened
Senses truesight 120 ft., passive Perception 20
Languages all
Challenge 14 (11,500 XP)

Traits

Exploitation of the Debtors. As a bonus action, the angel targets a creature charmed by it that it can see within 30 feet of it. The angel deals 11 (2d10) necrotic damage to the target, and the angel gains temporary hit points equal to the damage dealt.

Flyby. The angel doesn't provoke an opportunity attack when it flies out of an enemy's reach.

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

Spellcasting

Innate Spellcasting. The angel's innate spellcasting ability is Charisma (spell save DC 19, +11 to hit with spell attacks). The angel can innately cast the following spells, requiring no material components:

At will: command (as a 2nd-level spell), detect evil and good

1/day: raise dead

3/day each: charm person (as a 5th-level spell), darkness, suggestion

Actions

Multiattack. The angel makes two attacks with its scythe. It can substitute Chains of Obligation for one of these attacks.

Scythe. Melee Weapon Attack: +9 to hit, reach 10 ft., one target. Hit:9 (2d4 + 4) slashing damage plus 27 (6d8) necrotic damage.

Chains of Obligation. The angel targets one creature charmed by it that it can see within 90 feet of it. The target must succeed on a DC 19 Charisma saving throw or become paralyzed for 1 minute or until it takes any damage.

Lore

Deathpact angels dwell in the grandest of Orzhov cathedrals, where they surround themselves with wealth and wretched vassals that are utterly in their thrall.