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The skills in the skill bar once again lit up with derivative mutation enhancement.
What delighted Zi Liyuan even more was that the "Skeleton Summoning" series skills, which originally required him to reach the fifth tier, that is, surpass LV100, to continue mutating,
could continue to undergo derivative mutation enhancement as well, which was truly an unexpected joy.
As a result, the skeletons of silver quality at the warlord level he had just created a few days ago advanced further today.
The latest derivative mutation enhancement turned the skeletons directly into marshal-level gold quality.
However, the number summoned at once showed a tenfold decline again.
Previously, with a Soul Value of over 30K, he could summon only 30 warlord-level skeletons (silver) at a time.
Now with over 70K Nether Soul Value, he could only summon 7 marshal-level skeletons (gold) at a time.