Who is Stile from Blue Adept and what is their importance?

Stile is small in stature and exists in both frames. In Phaze, he is the Blue Adept, but he is a serf fighting for Citizenship in the Tourney in Proton. When Neysa is summoned by the Herd Stallion for breeding, Stile asks to delay her breeding since he needs her protection while searching for his anonymous enemy who killed his alternate self, the first Blue Adept, but the Herd Stallion challenges him to compete at the Unolympics for the priority of their claims. Lady Blue tells Stile about how she met the first Blue Adept before Stile returns to Proton, where he acquaints Sheen with the recent events in Phaze and wins Round 1 of the Tourney. Lady Blue joins Stile and Neysa on their journey to the Mound of the Platinum Elves in the Purple Mountains, and Stile is allowed to borrow the Platinum Flute in exchange for slaying a dragon and agreeing to a quest to find the foreordained savior of Phaze, who will move the mountain when he plays the Platinum Flute.