Although these death knights had already stepped one foot into the ranks of the undead, they were still human, after all. If Bar's earlier strike had merely ruptured a major artery or something, it would not have killed them outright. But with their spines shattered, not even a god could save them. At the very least, they were crippled.
This time, Bar had easily dealt with two death knights using a low-level spell—"Mirror Image." Mirror Image was not the Clone Technique; the body it created was merely a disposable target, and that still depended on whether the opponent chose to attack it!
If those knights had not prepared to strike together and had instead attacked in batches, Bar would not have had such a good opportunity. At first, he had only intended to use Mirror Image to confuse them and make them rein in their attacks. He had not expected them to show no restraint at all, launching a direct assault with all nine of them attacking at almost the same time. That meant they had left their flanks undefended. If Bar had not acted then, he would have been an idiot. That was why he had been able to defeat them in a single blow—he not only neutralized their attack, but also took the lives of two of them.
What shocked the death knights even more was that their bodies had already been transformed into undead bodies. As mentioned before, they existed somewhere between humans and undead, and their bodies possessed a certain degree of undead resistance. In other words, ordinary lethal wounds were nothing more than a joke to them.
For example, having most of their bodies smashed apart was no big deal at all. As long as they had enough materials, they could recover at any time,