Skyborn

The Skyborn, also known as the Avatar of Justice, is the semi-divine reincarnation of the Thunderbird. Ansgar was the last incarnation.
They can be identified by their ability to use Aether and speak Aikuri. There's always some affiliation with the sky (such as using wind or lightning magic), or something more subtle like growing up on a mountain.
There are two other beasts, the Dragon and Hydra with similar abilities.

Manifestation

The Skyborn usually has intense blue eyes and gravitates towards items used by previous incarnations

Type

Metaphysical, Divine