In the anime "Full-time Master", between Sun and Tang Rou, why did the World Invitational Tournament choose Sun?

In the novel Full-time Master, both Sun and Tang Rou use battlemage, but their fighting styles and experiences are different. Sun was a controversial figure in his early days. As soon as he appeared, he bossed around the main character Ye Xiu. In the first half of the novel, Sun was always written as the villain, but at the end of the war, Sun Xiang woke up. He began to understand that glory is not a person's game.

Later, Sun turned to reincarnation and became a very powerful attacker in reincarnation. Having a god-class account is very powerful in the game. Tang Rou is a good prospect that Ye Xiu found from the Internet cafe, and has always won in online games. It was not until Ye Xiu defeated her that Tang Rou really learned to play glory. Her battlemage style is that she never gives in, and always takes the lead, and she is not very good at using tactics.

In the novel, Tang Rou has been playing in the ring, playing with masters of different styles. In the process of being beaten, Tang Rou was studying, and finally she had picked out three. But compared with the soft sun of the Tang Dynasty, the soft personal strength of the Tang Dynasty is not comparable to that of Sun. Sun first used it as Yokota, and later transformed it into battlemage. At that time, in the autumn of a leaf, there was a fighting spirit in his hand. Later, after Sun Mingbai understood the important route of teamwork, he had a tacit understanding with Zhou, the captain of reincarnation.

Moreover, Sun is the only one in Rongyao's battlefield who has not met the new wall. Tang Ruan never touched the new wall once. Although she crossed the new wall, she was still at a disadvantage compared with Sun. The World Invitational Tournament is to represent the country. There is no doubt that the strongest team is needed, and the strongest team must be selected in the same profession. Comparatively speaking, Sun Xiang Bitang is soft and strong.