Three hours later.
Muddy Wine, Malthus, and the others returned to Lu Yang with their troops. All five thousand-plus Lower Gods, over a hundred Middle Gods, and fifty Upper Gods from the allied armies of the five races had been killed, their corpses carried by the warriors.
Lu Yang briefly discussed Dorshan's idea with Malthus, the Sword Spirit King, and the others. Malthus and the Sword Spirit King had more authority on this technique, because they had been dissecting it ever since obtaining the secret art.
Malthus said, "This secret art has another side effect, one that Dorshan probably doesn't know about. To use it, one must first possess extremely powerful spiritual strength. Dorshan's and the First Beast King's families have always been known for their powerful spiritual strength, and other gods who can cultivate to the God Tier also possess very strong spiritual strength."
"Most of the God Tier and Demigod Tier powerhouses in the Iron Blood Brotherhood do not possess such ability. Your Demigod Tier legion was forcibly elevated using Source Soul Crystals, so their spiritual strength varies greatly. If someone with weak spiritual strength uses the Soul Fusion Technique, then even if you have shattered the remnant souls of the other five corpses, they will still be mentally weak after fusion. A single illusion spell will render them useless."
The Sword Spirit King said, "As long as the corpses of Upper Gods and Main God Tier powerhouses are not destroyed, new divine souls will gradually emerge. It takes longer for Upper Gods, but Main God Tier corpses will produce them within about a year. If one's spiritual strength is weak and a Main God Tier powerhouse seizes control of the soul, your brother's soul will be completely devoured and can never be revived."
This was precisely what