Additionally, take for example the Black Flame Apostle whose body stretched like rubber, capable of suddenly elongating. If Rein hadn't pinpointed the adversary's weakness, relying purely on his greatsword to hack and slash, he would never have triumphed over his foe.
It can be said that if it were not for Rein, had any other seasoned knight been in his place, they likely would have met their demise right there and then!
On the other hand, it's clear that the Black Flame Cult doesn't merely have one Apostle-level expert; rather, they must have individuals or methods stronger than the Apostle level.
Therefore, Rein felt that by rapidly improving the levels of other professional panels, such as Blacksmith and Dog Trainer, he could accumulate a certain amount of Skill Points and attribute points to enhance the combat effectiveness of his Wizard Apprentice.
After all, even the might of a rudimentary touch-based witchcraft—the "Scorching Touch"—had amazed Rein.