If he wanted to cultivate the fifth level of the Extreme Jade Body Technique, he needed some rare spirit herbs which are not available in the Mystic Heaven Peak.
The Next day, Feng Yun started practicing the Meteor Rain Sword Technique.
The Meteor Rain Sword Technique has nine-stage, with increasing every stage it's power become terrifying. On the first level, one could form a flame sword and attacked the opponent, on the second level two flame swords formed, on the third level four flame swords formed, so on.
At the initial stage, its strength might be underestimated but after cultivating it to the ninth level one could form 256 flame swords and attacked the opponent like meteors raining from the sky.
Feng Yun entered the black pagoda and started practicing the Meteor Rain Sword Technique.
"Good sword art."