Agathinon

Agathinon (singular and plural, ; also singular agathion,, and plural agathia) were good-natured spiritual messengers and warriors from the Upper Planes.

The Netherese goddess of magic, Mystryl, employed these angels as messengers, along with many other noble beings.

Description
In their natural form, agathinon were somewhat elfish in form,   standing between five and seven feet and weighing between 130 and 190 pounds. They had multicolored skin that shimmered like opals and eyes that glowed. Male and female agathinon had the same height and weight.

However, agathinon never appeared in their natural forms when on missions to other planes; they were always in disguise as something else. That something could be just about anything, humanoid, animal, or other creature, or even an inanimate object or weapon.

Abilities
When in the form of another creature, agathinon had could mimic both the physical and the magical abilities of the forms they took. Additionally, when in the form of a human, agathinon were known to be able to cast divine spells like moderately advanced clerics. In any living form, the agathinon could turn undead.

If in the form of an inanimate object, they were able to grant any good person using the object with the power to cast low-powered clerical spells and the ability to turn undead. If an evil person were to touch an agathinon in object form, he or she would be harmed by magical energy.

Besides their powerful ability to change form at will to something roughly their size—with the associated qualities and powers —and besides the inherent magical abilities common to all angels, agathinon could use clairaudience, clairvoyance,  or extra-sensory perception  to observe others at will, and they could hold others from moving. They were able to become ethereal  or travel the Astral Plane whenever they desired.

An agathinon was immune to magic spells that would drain life or cause instant death, to disintegration, and to positive energy.

Agathinon could communicate to any creature in any language using their telepathy.

Personality
Agathinon were stoic and uncompromising. As warriors, they were fearless.

Combat
Despite being warriors of the celestial realms, agathinon never fought in their natural forms; they always either transformed into a powerful creature to fight in that form or else they turned into a weapon for another warrior to wield.

Society
Agathinon were the warriors of the aasimar.