I'll lend my interest. I like the sound of this. The pseudo blades are also very similar to an idea me and a few friends developed for a game a few (lots) years ago, loosely called "name blades". Each sword had the soul of a demon (who lost its memories in the binding) trapped inside it. The swords could talk to the wielder telepathically and either help or counter the wielder depending on if the demon found him/her "worthy" or not. Worthy users could access some form of sword ability granted by the demon and become incredibly powerful.