[Lore Sketch] Yago, the Estranged Shaman.
Text Source "Ryze and Yago circled each other, clashing with powers the world had not seen in ages. Yago seared Ryze’s flesh with what felt like the power of twenty suns. Ryze countered with a potent series of arcane bursts. After what seemed like hours, the combined power of their attacks breached the walls of the temple, and brought the thick ice dome crumbling down upon them."
Edit: Shameful self promotion; here's a link to another post of mine.