Corrupted Holiness. The angel has resistance to radiant damage and is immune to any effects that would affect aberrations specifically. Aditionally it can use its reaction to repell damage toward an attacker.

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

Multiattack. The angel makes two claw attacks.

Claws. Melee Weapon Attack: +8 to hit, reach 5ft., one target. Hit: 14 (3d4 + 5) slashing damage.

Wings. (Recharge 5-6)  Every creature in a 10ft. radius has to make a DC 17 Dexterity saving throw taking 22 (8d4 + 5) slashing damage and 16 (4d6) psychic damage on a failed save and half as much on a succesful one.

Wing Flourish. The angel spreads its colorful wings forcing every creature that can see it, to make a DC 17 Wisdom saving throw. On a fail the creature becomes stunned until the end of the angels next round. Another creature can use its bonusaction to make the target snap out of its stupor.

Screech. Each creature within 60 feet of the angel that can hear its screech and that isn't an aberration must succeed on a DC 17 Wisdom saving throw or become frightened until the end of the angel's next turn. If a creature's saving throw is successful, the creature is immune to the angel's screech for the next 24 hours.

Corrupted Holiness. As a reaction the angel can half the damage of an attack or spell that targets it and cause the attacker to take psychic damage equal to the half the damage taken.