[Alneyan]

Now that I have checked, it does not quite work indeed. I think I had trouble with the research before, so the easiest solution would probably be to give the spell to your nation. You could either do it via a specific map (it works), or by making Wish a nation-specific spell (I never tried that, but it *should* work).

I am not sure what is the problem with the research level though. The spell shows up just fine in the spell list, but cannot be cast, even when all the prerequisites are met.