The Demon Lord's soul was intact, but his body lost all ability to fight, so victory went to Zatiel.
Ancestral Root's eyes narrowed. He was able to figure out what happened with the Demon Lord within seconds.
'He used an illusion-type soul invasion spell to affect the Demon Lord's senses. The ability must be a very high-level one if it can affect a Rank 6 life form to such a level. According to the instructions given by the World Tree, I must limit myself to regenerate the wounded parts and unleash the next level of his cultivation, meaning that the power affecting the fiend's soul will remain.'
Although Zatiel's tactics could be considered a form of cheating, Ancestral Root performed an approving nod after seeing what he did.
Schemes, traps, and tactics are part of an individual's power. Only a fool would not use them to preserve a foolish sense of honor.