Comments of chapter undefined of One Magic To Rule Them All

And how exactly would he increase his magic reserve? At the rate it’s going, it would take him 500 years at least to reach S level. Also his magic is pretty weak in later stages, if he can’t enhance his body without items then what happens if he fights someone strong and all his items are destroyed? He’d be sitting duck. Not to mention that the items themselves aren’t always active and requires him to manually activate them, so what happens if he fights someone fast and he is unable to activate his items in time? This power has too many limitations and weaknesses.