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

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

Spellcasting. The Virtue is a 17-level spellcaster. Its spellcasting ability is Charisma (spell save DC 15, +7 to hit with spell attacks). The Virtue has following paladin and druid spells prepared:
At Will: Absorb Elements, Thunderwave, Speak With Animals, Mold Earth
3/day each: Call Lightning, Moonbeam, Sleetstorm                                                                2/day each: Blight, Summon Celestial (angels of lower rank), Insect Plague                  1/day each : Earthquake, Tsunami 

Multiattack. The Virtue makes two Glorifying Touch attacks.

Glorifying Touch. Melee Weapon Attack: +5 to hit, reach 10 ft., 1 target. Hit: 15 (2d8 + 6) radiant damage. 

Elemental Longbow. Ranged Weapon Attack: +6 to hit, range 150/600 ft., 1 target. Hit: 21 (4d6 + 7) fire, cold, lightning, or bludgeoning damage (Virtue's choice).The Virtue has eight arrows of each damage type, and can remake them within the next twenty four hours. The target must make a CON save (DC 14) or have the arrow sticks into them. They can repeat the save on subsequent turns and take 2d4 of the damage type. It disappears after 1d4 rounds.  

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