Shhhhhhhhhhh it's insane remember that bit martial cannot ever do something like a magic dude does with a low level magic... never ever ever.
Protection from normal missiles can't do this. In 5e for example all it does is give archers disadvantage on attacks and resistance. Given the number of archers and arrows involved - more than 100 arrows are striking the target each round - this would lethal very quickly. The 3e version of the spell would expend its protection in the first couple rounds as well, after which the spellcaster would be dead in short order.
But sure, you could have a martial class that could cast "Protection from Normal Missiles" a certain number of times a day if you wanted to simulate "Insane Epic Arrow Deflection". However, at that point it's questionable whether it is a martial class. For example, if the martial class had a daily power, "Insane Epic Arrow Deflection" which was basically, "For one minute as an extraordinary non-magical ability you get the same effect as Protection from Normal Missiles", that would probably be fine. But it would be a martial ability in name only, because all you've really done is borrow some preexisting mechanics for simulating magical ability, and given them a thin veneer of being non-magical. What you really then have is a sort of "sword magic", which is martial by the rules, but operates in pretty much all ways just like magic.
I should also note that in the context of traditional Chinese culture, what you are seeing is in fact "sword magic". These aren't martial classes at all, but have access to jitong and chi through their long training and meditative arts. You might as well say that what they are doing now is expending spell points and it would make perfect sense in context. In the context of the setting, the archers are the martial classed characters that lack supernatural ability, and the major characters are all basically Jedi Knights wielding the force. That guy with the brush might as well be inscribing a magical symbol. See for example 'Baguadao'.
If you on the other hand want to give the martial class a certain martial flair that is distinctive from magic, then you have to find some way to limit that ability in a way that makes sense thematically but limits the ability in some fashion different to but comparable to all the ways that D&D has historically found to put limits on magic so that it no longer has just the power of plot. And I'm perfectly fine with that, but my experience with people asking for martials to do this sort of thing is gameplay and balance in the spotlight is about the furthest thing from their mind.