My Solar is our only unarmed martial artist at the moment. We had generally just assumed that a Solar martial artist would have little difficulty blocking attacks barehanded or at a minimum that defensive charms like Iron Arm Block (DB, 304) would cover blocking barehanded, and my character almost always uses Iron Arm Block when blocking anyway.
But after needing to look something up and re-reading the rules, that may not be the case. The rules do say of course that characters can stunt to deflect lethal attacks barehanded even without magic, but it is not always easy to come up with a stunt that allows someone to block some attacks without relying on some form of magic.
So, the fundamental question is what is the best way for an unarmed Solar Martial Artist to semi-consistently be able to block against armed opponents?
Obviously, if our initial belief that an Exalted Martial Artist could do it was correct this isn't an issue. But re-reading the rules seems to suggest that may have been an assumption we made rather than something that was in there. It seems like charms like Iron Arm Block might be able to do it and it even mentions "divert her attacker's weapons", but that is also a little unclear especially in regard to things like maces that are hard to divert meaningfully.
One obvious answer is to take the Fists of Iron Technique which literally has that as one of its two functions, but Firsts of Iron Technique is a Brawl Charm. Would I have to rely on calculating parry with brawl (1 dot) instead of MA (5 dots) if using Fists of Iron?