The reason why the Origin of Chaos must attract lightning from the sky to be released is that this thing is bound to the soul.
Sterl changed accounts, and the backlash from Fortune was still ongoing.
Will of Hell contained the remnants of the Archduke of Blood, similar to the account change of Sterl, possessing a mark that allowed him to barely utilize the supremely powerful Sky Thunder. However, the "mark" was incomplete, being just a remnant soul, which prevented him from unleashing its full potential.
Sterl analyzed this silently.
He frowned slightly. After the identity of Will of Hell as the Archduke of Blood was revealed, there was no unexpected power that emerged; instead, he could confirm one thing: the Origin of Chaos was not a result of Will of Hell holding back, nor had it failed to reach its peak.
It could exert such great power on its own.