oh yeah lol. i mean the universities who require so many A* grades then i'll be able to meet that
Which universities do that? I've not seen anybody do this
Not many universities do that (the only examples I've ever seen are for Medicine) but if this is the case, please check the small print - they often say that all of the A*s have to be achieved in a single sitting, to prevent people from doing stuff like this. Good luck.