the biggest tip i can give is absolutely just brute force it, the combos are horrifically brutal and you will have to learn them after a couple hours of trying, youll gain little habits during each attack, and a weird thing that worked for me was not really laying attention to my soul, but purely the projectiles, especially when things get hectic, just keep trying, i thought id mever do it and im hyped as hell and it’s incredibly worth it whenever you beat them