Carl had never forgotten that he had once received a piece of witchcraft from the Grey Robed Wizard Adison.
The Soul-Splitting Spell!
This was a kind of witchcraft that could split the soul, sealing a part of it inside a Life Box. If the original body died, the soul could be resurrected with the help of the Life Box. Although it would weaken one's strength, it could save their life. It was said to be an ancient Witch-Demon practice.
However, the complete version of this witchcraft was Third-tier, and it was extremely dangerous for First-Ring and Second-Circle Wizards to practice it.
The split soul could potentially turn against the original body.
However... if Nightmare Galoya's Spiritual Possession Technique is added, it could solve this flaw.
But at the same time, the weakened version of the Soul-Splitting Spell also lost the meaning of the Life Box, as there was no way to resurrect the original body after death.
