Review Detail of Zarc_Dragnero in Mushoku Tensei Arthur

I hate these novels since the second act. Why change the ability to use high-level magic in Haki, can use magic to do body reinforcement and things like Armament Haki, and a magician can use magic to feel and discover the existence of something static and live like the observed Haki. And if he wanted to see a future, there is the eye that the Queen of Demons gave in the story Asli, which is not only the ability to see seconds in the future, but minutes and an hour according to mana consumption. And I have magic, the ability to create pressure on people, the stronger your magic is like Haki the Conqueror. Now I do not understand why he took Haki and acquires a curse. Otherwise, his magic could be higher than the average