He's incapable of learning any useful magic, just like me.

[Shaking his head.]

If I had access to my Reality Marble, I could handle her easy. With Saber by my side, she would also be a pushover. I just want you to know that if it comes down to it. And Saber would not hesitate to fight Rider, considering they are complete opposites.

But this makes up my mind. You've already met Natalia. I trust her. In short, I'm going to have her teach you what you need to know. I don't know how you feel about that but, if needed, I will plead you to follow my advice.