Chapter 552: Golden Essence Liquid, We're Rich!

Currently, Lin Yun knew of three fastest methods to increase power.

First and foremost, naturally, was to use the Blood Sword.

However, the Blood Sword had been obtained by that Nanweng, so this method was naturally ruled out.

Secondly, it was to use the Cosmic Trading System.

However, the power gained from this method also had flaws. This method of increasing mental strength had been sufficient. If he hadn't felt that something in his mental strength was replenished every time he broke through, he might not have used this method to enhance mental strength.

If he used the Cosmic Trading System to boost both his mental strength and Martial Arts Realm, he couldn't guarantee what problems would occur.

Thirdly, there were rare treasures like the Heavenly-luck Flower.