GJ: I have a question about Fate characters. How high (or low) are the talents of Emiya Shirou and Tohsaka Rin within the entire history of the Association?
Nasu: Rin really is a genius. Given time, she'll enter within the top 100 magi of the Association throughout its entire history. Shirou won't move out from being an magus apprentice, but as a spell-user, he'll be among one of the big specialists. Ultimately, he'll receive an evaluation on the same level as "Magus Killer" Emiya Kiritsugu had in his peak, maybe. If I were to put into simple numbers, Ciel: 100, Rin: 70-100, Shirou: 10 (under particular limited conditions, then 40).

Game Japan 2007-02 issue - How high (or low) are the talents of Emiya Shirou and Tohsaka Rin within the entire history of the Association?