Back when I played as a warrior in maplesea, I died so frequently, I resorted to added ap stat to luck, hoping I would lose less exp that way. It also helped that luck boosts accuracy (abeit to a lesser extent than dex) and evasion. IIRC, I distributed ap point allocation between dex and luck, when it comes to ap points meant for the former. But now in my current playthrough, I don't die so often. In fact, my death count is single-digit. As the result, my stakes are not as high so I'm not doing luck build.
We have charms in royals as well, so you don't lose any EXP at all, assuming you have at least one in your inventory. There are several HP quests in royals as well. So there's really no need to put LUK into your base stats.
