[Is this the essence of magic?]
Curiously observing the actions of the Immortals.
Li Hao discovered that these unorthodox beings truly played the "Exorcism and Demon Control Skill" to its fullest.
The approach of dispersing spiritual essence and preventing the Rebirth of evil ghosts, as Shuli does, is already considered quite normal.
Some imaginative Immortals often use various unexpected methods when dealing with evil ghosts on their own turf.
Forcibly coalescing spiritual essence without granting it a viable form...
Thus resulting in many grotesque ghosts whose appearance would drop SAN value, yet upon closer inspection, they possess no ability to act.
Understanding the essence of souls, placing two evil ghosts within one body...
Thus leading to two-headed or even multi-headed ghosts that fight each other yet cannot kill each other.
The peculiar use of the "Exorcism and Demon Control Skill" by the Immortals has indeed refreshed Li Hao's understanding of this ability.
