You have a crush on A Zi. In order to help A Zi cultivate the poison of ice silkworm, he fed ice silkworm with his own blood, was bitten by ice silkworm's cold poison, and became an iceman. A Zi had to abandon him when he saw this, but Youtan was washed away by the river and his body gradually thawed. At this time, the martial arts cheats in his arms were also wet by the river, revealing hidden martial arts.
He only felt extremely cold, so he began to practice according to the movements in the book, hoping to alleviate the pain. Ice silkworm of Yutan was used to suck blood, and ice silkworm's cold poison was transferred to him. According to the practice of Zujing, he gradually dissolved the cold poison in ice silkworm's body, and the cold poison was also integrated into his internal force of Zujing.
Later, under the guidance of A Zi, you studied the martial arts of the Stars School in Tan Zhi. From then on, with deep internal force and ice silkworm's extremely cold palm, he became a master of martial arts. You Tan Shen Zu's internal force and ice silkworm's poisonous palm are really fierce.
However, if you are freestyle, your boxing will not work after all. When Qiao Feng took over, his right leg was suddenly swept away, and it was too late to escape, but Qiao Feng swept away his leg bone. If only the internal force is mentioned, the internal force of Youtan ice attribute is not lower than that of Qiao Feng.
Comparison between Xuan Ci and You;
Xuan Ci is a top player in Shaolin. His qualifications, reputation and martial arts are extremely high, and his "big drilling fist" is even more famous. When the abbot Xuan Ci saw Youtan, he only felt that Youtan had a strong internal force.
Although he resisted you's palm, you's palm was too strong, and he broke both ends of his belt at the same time. As can be seen from here, You Tanzhi's internal force seems to be much higher than Xuanci's.