Lesse here... Mage can become Valkyrie as well as Battle Mages by some reason, huh... Changing Archer to something that can become Hero... And then Shaman can by some reason become Dark Flyer (Pegasus Riders cannot become Dark Flyers, huh)... ... ... Unless we have an Internal Level limit (which I am unaware of), I don't see a problem. Assuming you're going to be playing for that long. I mean, my first match which started two months ago is not over yet and all my units are still Level 1, and for this you'd need... Loads of levels. Hahahahaha.