Yunfei 10x

Right now when he tried to strengthen his skin and flesh with his soulforce, his entire body grew stronger. Whether it was his punches, his speed, how high he could jump, or even how strong his defenses were, they were at least ten times better than what they used to be as a simple commoner. It was already at the very limits of what the ordinary commoner could do or even achieve with their bodies.

http://www.wuxiaworld.com/usaw-index/usaw-book-1-chapter-8/