I absolutely adore this one for being perfect representation of "Kirin Tor archmage" archetype I can customize with plot details as I see fit. It's also asset of excellent quality and performance, and mounted version provides plenty of versatility when it comes to using it in maps. His "loud" talking animation deserves special recognition for expressing personality of powerful guy too confident about his powers, talents and mental capacities.
Basically when I was designing Solymus the Seeker character for the reworked Exodus campaign, this guy popped up on the list and I immediately recognised that it just must be him. His talking animation has so strong vibe, that it provided me inspiration to write whole character around my first impression.