When thinking about what kinds of weapons to add to my medieval-themed game, I began to think about blocking. More specifically, I thought about how people usually block things in everyday life, like punches or spraying water.
I realized that such things are often blocked with the palm of the hand; this confused me, because as far as I know, shields are all constructed to be affixed to the posterior part of the arm. To me, this seems like a great way to stop deadly weapons, but doesn't offer too much room to redirect them, which from what I've heard from HEMA enthusiasts is more of what fighting is about.
So I said to myself, what about a shield on the anterior arm? This was thrown out immediately when I considered arrows, so I moved on to bucklers. They're used for dueling, so they'll pretty much only come against swords, but in a fight I think I'd much rather grab a sword than punch it. So I came up with a concave palm buckler, something like a shallow bowl strapped soup-side-down to the palm of your hand(perhaps with notches on the sides to help catch blades), and used to slap away the enemy's sword. Not only that, but I thought with some experience you could actually use the force of the blow to jump out of the attacker's way and strike from a new, unexpected angle.
But something I've learned from the Youtuber Lindybeige is that if one is considering a weapon design, one first looks to see if it was ever used; if not, it's probably not a good design. So I thought about it, and the only cases of something similar to the Palm Buckler were :
1- The character Mugen in the anime Samurai Champloo uses steel plates on the bottoms of his sandals to block swords.
2- The titular assassins in the Assassin's Creed franchise use blades fixed to their anterior arms, and (after the first game) can block with them.
Since these are both fictional, I don't have much hope that this design is useful. However, I cannot see why it wouldn't be. So, would a Palm Buckler or some anterior arm weapon be useful/practical? Why or why not?
Assume mainly a medieval to Renaissance dueling scenario, or alternately cases where this design would become useful if it isn't otherwise.