This is a EUNOPF! topic, BTW.
Right, so! Instead of the Scarecrow or the Lion or the Tin-Man, there is YOU. Why you're there is pretty much your own business, but you end up journying to the Emerald City, saving Oz, and all that jazz. NOW, you find out the Wizard ain't much of a wiz if ever a wiz he was, but he's a decent sort of a fellow and not without something to set you straight or benefit you somehow.
What would you get from the Wizard of Oz?