Angel of vengeance

Cloak of vengeance. If a creature hits the angel with an attack within 10ft of them the angel deals 2d8 damage half fire half cold to the target. 

Mark of the vengeful. As a bonus action the angel can mark a creature it can see within 120ft and then teleport to them on there turn to a maximum of 500ft. 

 Innate Spellcasting. The angel’s spellcasting ability is Charisma (spell save DC 18). The angel can innately cast the following spells, requiring only verbal components:

At will: detect evil and good

1/day each: wall of fire, phantasmal killer 

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

Angelic Weapons. The angel’s weapon attacks are magical. When the angel hits with any weapon, the weapon deals an extra 4d8 radiant damage (included in the attack).

Legendary Resistance (once/Day). If the angel of vengeance fails a saving throw, he can choose to succeed instead.

Multiattack. The Angel makes two melee attacks.

Longsword of fire. Melee Weapon Attack: +14 to hit, reach 10 ft., 1 target. Hit: 13 (1d10 + 8) [slashing] damage plus 1d8 fire damage and 12 (4d8) radiant 

Longsword of ice. Melee Weapon Attack: +14 to hit, reach 10 ft., 1 target. Hit: 13 (1d10 + 8) [slashing] damage plus 1d8 cold damage and 12 (4d8) radiant 

The angel of vengeance  can take 2 legendary actions, choosing from the options below. Only one legendary action option can be used at a time, and only at the end of another creature’s turn. The angel of vengeance regains spent legendary actions at the start of its turn.

Attack (Costs 1 Actions). The angel of vengeance makes 1 long sword attack 

Vengeful blow (Costs 2 Actions). The angel of vengeance casts the spell wrathful smite at level 6 (dc 18)