But the reality was that the old man had painstakingly studied magic for many years, and the only result was that he had increased his low-level spell casting success rate from the mere 1% he had during his late teens to about 60% for the Low Rank Fire Element School spells. As for basic elements like wind, water, and earth—even for low-level spells—Jadka Diesel's success rate never exceeded 50%.
In other words, if you discount the explosive damage from his magic wand and his combat strength when forced to resort to fisticuffs, Jadka Diesel's abilities amounted to, at most, a magician's apprentice, and even then, only a novice who had just started a couple of months ago.
This was ridiculously unbelievable, of a level worthy of historical record.
It was as shocking as a student of sound intelligence who, after seventy years of diligent study, still failed their exams for junior high.
He wasn't stupid, nor was he lazy, but he just couldn't produce results.