Seven kinds of wings

Refining wings did not involve the various hurdles encountered in cultivation.

As long as he had the materials, Zhang Xuezhou could keep refining his wings whenever the cooling period after tempering was over.

Just as weapons could be forged with enough materials, Zhang Xuezhou could keep improving and modifying his wings as long as he had enough materials.

From Venerable Lei's subsequent explanation of the Technique Within the Clouds, Zhang Xuezhou understood that his wings could be refined into seven forms: flesh wings, wood wings, iron wings, bronze wings, gold wings, jade wings, and wind and thunder wings.

Flesh wings were the wings he had originally possessed. Once refined to their limit, they would enter the wood-wing stage.

Wood wings did not mean they were stiff. Rather, it meant the wings had gained the ability to soar over great distances, like a ship drifting across the sea.

If the wings of a great bird-type demon reached the level of Zhang Xuezhou's current wings, its flying ability would have at least doubled or tripled, giving it the ability to soar over vast distances.

Zhang Xuezhou could only fly thirty li, partly because he had taken up cultivation halfway through his life and partly because he was in human form.

In cultivating the Technique Within the Clouds, his situation was perfectly normal.

Even Venerable Lei had only been able to fly a few dozen li when he first began cultivating it.

Above wood wings were iron wings, whose feathers were like sheets of iron. Not only did iron wings improve one's flying ability, they could also shield the body from arrows high in the air.

With the help of Wu Chao's resources, Zhang Xuezhou had learned to retract his wings and completed their transformation into wood wings.

He was now progressing toward