Previously, after confirming the existence of the World's Son, Jasper, Lis was ready to use this method to shock him.
Even though his subordinates killed many people, if all of them were resurrected, wouldn't it be as if it never happened?
Moreover, by doing so, Lis showcased his power, directly shocking everyone in the Isaac Great Forest Alliance Army.
Especially the World's Son, Jasper.
As a veteran player, Lis understood well that Jasper, as the World's Son, was not someone who could be subdued through physical force alone.
In many game plots in "Divine Revelation," the more you oppressed the protagonists, the stronger their will to resist.
Overdo it, and these people would rather die than give in.
If Jasper were to die outright, it would just make it more troublesome for Lis to control this small world.
In this situation, it was more suitable to start with Jasper's companions and family.