Archangel

Holy Sense. The Archangel can detect any lie it hears without making a check. It can't make a lie itself. 

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

Spellcasting. The Archangel is a 8-level spellcaster. Its spellcasting ability is charisma (spell save DC 15, +5 to hit with spell attacks). The Archangel has following wizard spells prepared:
At will: Blur, Message, Witch Bolt
3/day each: Hold Person, Fear, Locate Creature                                                                      2/day each: Freezing Sphere, Greater Invisibility                                                                      1/day: Crown of Stars

Multiattack. The Archangel makes two celestial longsword attacks.

Celestial Longsword. Melee Weapon Attack: +8 to hit, reach 5 ft., 1 target. Hit: 15 (3d6+5) slashing damage plus 12 (2d6+5) radiant damage. 

Spear. Melee or Ranged Weapon Attack: +5 to hit, reach 5 ft or range 30/70 ft., 1 target. Hit: 8 (1d10 + 3) piercing damage plus 4 (1d4+2) radiant damage.

Change Shape. The Archangel magically shape-shifts into a humanoid that has a challenge rating equal to or less than its own, or back to its true form. Any equipment that the Archangel is wearing is destroyed borne by its new form. In a new form, the Virtue's statistics are changed excepting its CHA, INT, WIS, and CON.