Fifteen billion Skill Points can do so much that Zhang Chen doesn't even know which skill to upgrade at the moment.
Zhang Chen's gaze swept over the Golden Finger Interface and finally rested on the Sun Charcoal Fire.
The Sun Charcoal Fire is currently a ninth-tier skill, and it is the most destructive and highest level among all his skills.
Although he has fifteen billion points, he must use them cautiously, employing all points as effectively as possible to elevate his skills to the extreme and fully unleash their effects.
[Skill 19 (Ninth Tier): Charcoal Fire in a Grain + Sun Sensing (/1000000000)]
Upgrading the nineteenth skill to the tenth tier only requires one billion points. After a brief consideration, Zhang Chen directly clicked to choose the upgrade for the nineteenth skill; there was indeed no better choice than this at the moment.
