C1568 Find the Lich's Fetch

"Banbil, how did you do that? Isn't Lich an immune physical attack?" Xu Tianyu asked curiously.

"Master, when I raise my Gold rank to the level of Gold rank, I can attach my own internal strength to the sword Qi. internal strength can cause harm to Lich and can also destroy the activity of her body.

Xu Tianyu understood. To put it bluntly, it was the suppression of their levels