In days long past, the now-ruined city of Khamhalla was ruled by a wise nephalem king. The symbol of his authority was the sword Exarian, gifted to him by the Lady of Light. Legend has it that, though betrayed and gravely wounded during Khamhalla's fall, the king did not die, but was borne away across the sea to return when Sanctuary needs him again. The reappearance of Exarian heralds his return.