Archmage Who Transcends by Returning

Mikhail Walpurgis, the only 9th-circle Archmage on the planet, was vanquished by a hero who had been cursed. In response, he used his supreme power to activate "Time Reversal." This caused time to reverse and returned him to 20 years ago. With a determined attitude, he declared, "Very well. I will assume the role of the hero myself."