How long is Wei Zijian?

I think Yang Guo is smart enough, so I chose this epee.

At that time, Yang Guo had only one arm, and even a flexible sword needed a good balance. What Yang Guo lacks most is physical balance. This epee can be said to enable Yang Guo to spend the fastest time exploring the balance.

In addition to the concept of balance, it should also be determined by Yang Guo's own personality. Yang Guo is a very suspicious person, as can be seen from his life experience. Generally, people with extreme personalities tend to seek psychological stability. This epee can be said to meet the requirements of Yang Guo.