It doesnt sound like a bad idea but i dont think its very a applicable in a warrior, it sounds more like what the pirate would have in some tank/dps specialization
Hmm if you watch some games like lost ark or even wow in legion (the legendary Item it as a unique abillaty like that or even in TBC sheild that procs something like) they work arround on that but never got into something including at class just that item itself.
But if you watch berserk or if you read't like mention there is tank warrior that fights Guts (main character) that as that on is shield and the phantsy and drak story is ones of the best read't and just imagine like doing that type of classe they literally as a lot of "Warriors potencial" to guide on, and btw the black armor used by Guts made by dwarfs in the story was duplicated in Dark Souls and was not the only thing was duplicate.
I rather to see some like "guide inspiractions lines" on classes that we really like to see in game I will leave some links to characters that I mention.
https://www.wallpaperflare.com/berserk-berserk-armor-guts-wallpaper-tchoc -> Guts Dark armor
https://res.cloudinary.com/jerrick/image/upload/f_jpg,fl_progressive,q_auto,w_1024/5e30aaf73fc593001cf8c707.jpg -> Guts basic armor
https://www.youtube.com/watch?v=OD3iX1xnts8&ab_channel=AnimesandDramaWorld -> example of fight BUT IT IS VERY POORLY DESIGIN (it is easy to explain with vedeo just that)
Thank you for share your Idea