C733 The Evolution of the Ghost Binding Order

[Soul Gem]: Grade: dark gold; Special Item; Equipment Upgrade Level: 7-10; Base Effect: 10% increase in every level, and the success rate will be reduced due to the increase in level.

Even in the second level of the Celestial Tome, the "Soul Gem" was one of the few hard currencies. Its value was incomparable to other resources. Because of the large consumption and the difficulty of obtaining it