Board Thread:Off Topic/@comment-26397825-20160116042403/@comment-27275832-20160205022822

yeah, but it's also theoretically possible, and similar results have also been produced in labs. It's more like a plasma ball (as recorded in several experiments)

There have also been numerous sightings of ball lightning-like phenomenon. I think it could be possible to make it occur in the RWBY universe with the help of dust and aura. even if It's using the aura to contain the electricity/plasma.