@starburst98
I wonder about that.
When he did the test by shooting magic and looking at his mana, what he noticed was that the stat was fixed. there's no wording in the curse that says that his stats instantly recover to max, the curse is that his stats are fixed regardless of what he does or what happens to him. This would mean that whatever attack he takes, his HP will stay stuck at max. Of course, maybe the author will decide that an MC that cannot be killed is a bit ridiculous (although it'd be hilarious.)
In any case the MC has already trained his magic to be stronger despite his inability to increase his stats. I'm mainly curious about whether he'll be able to use magic that requires more mana than his max, but then again with the infinite arrows he's already pretty strong. I wonder if there's any such hack to would allow him to deal with his fixed physical stats. (But the loophole with magic is really due to the facts that the stats don't fully describe the user - casting speed, strength of magic don't really have a stat. Then again, we really haven't seen all his stats, just his magic attack and physical attack, so who knows, maybe through training he can become really fast and punch a bazillion times, and his fist would never get hurt thanks to his fixed HP, so he could just keep punching.)
Who knows? For now it appears he's going for a mage build.