This situation worsened the closer it got to the present day.
Therefore, the truly powerful Necromancy Magic was precisely the extremely ancient kind. In that era, Necromancers faced few restrictions—in fact, one could say they had none at all!
The Magic they developed under such unrestricted conditions was naturally immensely powerful.
Of course, learning it was also extremely difficult.
For example, the Necromancy Magic recorded in the "Book of the Dead" was divided into three systems. The first was the Skeleton System, which used bones as Casting materials to construct a series of Skeleton Magic. The second was the Corpse System, which used corpses as Casting materials to create various Undead Creatures. The third was the Ghost System, which used the souls of the dead as Casting materials to construct a series of Ghost Magic.
