[@Lmpkio] I've had two potential posts in my head.

One would develop Artoria as a character, and add something cool to the fight, and give the demons a chance for victory, however tiny.

The other one just delays things.

The problem is that option one ends with Artoria dead. And then I'm back to playing Miyu, who is not so good at fighting, or my "no character development possible" characters.