Qin Fengming was laughing not because Weng Zhang had been captured by the Green Soul Silk, but because of the terrifying poisonous erosion the Green Soul Silk was displaying at that moment.
The Green Soul Silk was originally a sinister object refined through the sacrifice of souls. During its cultivation, the soul had to be condensed into silk, with all kinds of poisons added and fused into it.
As the cultivator's own soul realm increased, the number of souls and the various poisons fused into the Green Soul Silk would also grow more numerous and more powerful.
At this moment, Qin Fengming himself did not know how many powerful souls or poisons had been fused into the Green Soul Silk nurtured within his body. He had rarely brought it out before because the Green Soul Silk had its limitations. It was not some powerful divine ability or secret art that could cut through anything.
Its strength lay mainly in close-range surprise attacks, and its target was the cultivator's soul.
Now that everyone was in soul form, the Green Soul Silk could be said to be the most effective means of attack. By catching the opponent off guard, as long as it could invade the soul's interior, it could poison the soul body and strip it of its ability to resist.
Unfortunately, these cultivators' souls were powerful, and their vigilance had prevented the Green Soul Silk from reaching them.
Even so, being able to capture Weng Zhang's soul in an instant still left Qin Fengming highly satisfied with the Green Soul Silk's current effectiveness.
Qin Fengming reached out, and a small, blue-black short blade appeared in his palm.
This short blade was none other than Weng Zhang's natal soul treasure: the Soul Slaying Dagger. From the powerful aura of soul erosion