Projection magic is a useless magic. Just to create a simple iron bar, it would take multiple magi many hours to do. And it would barely last a couple minutes. On top of that, using it would cause it to shatter. I simply have the special circumstance of having a Reality Marble that modifies the projection spell. Instead of creating an item, I am simply bringing it in from another world, a world where I did put hard work and blood making these things.

[Nope, still useless magic.]