Zhang Chen decided in his heart to upgrade the Sealing Rune.
[Skill 9 (Tier 4): Sealing Rune (200,000)]——>[Skill 9 (Tier 5): Sealing Rune (2,000,000)]
"A tenfold increase in experience points, it seems the profundity of this Sealing Rune is beyond my imagination." Zhang Chen thought to himself.
To upgrade from Tier 5 to Tier 6 requires a full two million Skills. Later upgrades would depend on what he finds upon entering the Empress Tomb to gather enough experience points.
At this moment, Zhang Chen still had 399,400 points remaining, which allowed for another upgrade session.
Blood Control Technique requires a million, so it was not to be considered now. Zhang Chen's gaze fell upon the Invisibility Rune and Light of the True God, as upgrading the Invisibility Rune only needed 80,000 experience points. The Invisibility Rune would be of great use, so Zhang Chen decided to focus on upgrading the Invisibility Rune first.
