the way you're describing the combat system here probably means I missed another bunch of mechanics: I only really could tell that there was a stab and a slash. This is probably not my most useful video, sorry about that
No big deal. I think you found everything the control explanation splash screen had to say. Here, I made this to show what exactly you missed. There was that dash, as well as running with B. This also shows how you can dodge out of recovery periods, as well as the timing necessary to combo. It also shows the special attack you can do by holding RB and tapping A.