pokenerds where you at?

I have a question for you all

There is a new move in pokemon x and y called "Ion Deluge" sounds like a fucking bad ass name if you ask me, but it seems pretty useless. It basically turns normal type moves into electric type, what I wanna know is, does it stay for the entire battle? Or if the pokemon switches out will it go back to normal? If any one knows please pass the info my way :)