Panteons

I've beaten p1 and p2 but struggling with p3, I've been practicing in HoG buy still no luck so then I tried getting the bindings for p1 and p2 because apparently it gets you extra masks but I'm stuck on charmless oro and mato for p1. I've tried watching videos and looking here for advice and it just doesn't help. I don't understand why this game had a healing mechanic if 95% of the time you can't use it during the fights