Q: In the anime, there is a fight scene between Rin and Ilya, but are there any mages who could even win against Ilya in a magic fight in the actual 「Fate/stay night」, 「Fate/Zero」, or 「Fate/hollow ataraxia」 games? <ukw>

Nasu: Frankly, she is the top mage in Fuyuki. Still, first-class mages would follow the "since she's a child of nature, just cut her off from the land first" plan, so it's not like she's invincible. Kayneth and Tokiomi may be able to best her in a magic duel. Rin is just relentless. But if we're talking about the dark girl who contaminates the land itself...
Takeuchi: ...Sakura's magecraft skills are really fit for a boss, aren't they.

Fate/Stay Night Animation Material I; Q&A, pg. 41