You are Anonymous, the greatest caster the world has never heard of. Your deeds have been lost to time, known now only by your closest friends that survived your 1100 year long life. It has been 50 years since you've last spoken to any, so it came as a surprise when one of them, Princess Celestia, sent you a summons that requested your immediate assistance. Naturally, you left for Canterlot as soon as you were able to, eager to see your old friends again after so long.

A young protege of Celestia's has been having some trouble with a sudden new power, and you're just the man to help her.