Personally I feel like the current setup is good. It's chaotic. Yes, you can in theory bless anything,b ut the moment it's cursed it neutralizes, then likely gets bumped all the way to full cursed a moment later And thent here's wheny ouh ave to bless just to counteract a massive cursed field. And blessing uses at least one AP, which prevents you from getting a full other set of attacks out.
And it's not even like it matters what your class is, because you can customize yourself to be literally anything from the get-go, utterly disregarding class save for the weapon it starts you with.
Honestly? I just also wish that we had access to curse as a skill, because I'd love to be able to make the fields between me and my enemies that much more dangerous.