Darkist's Secret Book of Black Magic Techniques is a secret book of black magic by Darkist, the creator od black magic.
A secret book of Black magic by Darkist, the creator of black magic. Not only can you learn Darkist's skills, but you can also create new black magics.
Although it takes a lot of effort to understand all this.
The black magic Darkist uses is quite different from the black magics his disciples passed down to his predecessors which is the black magic used today.
Darkist uses his mana with more finesse.