Sorry, but "Pein with no Rin'negan" has to be a banned Battledome contestant for the moment. We have no idea what powers Pein has that are not in some way associated with the Rin'negan, and every one of his bodies appears to be a direct consequence of the Rin'negan. Closing the thread: please feel free to discuss the more reasonable question of full Pein versus full Itachi in the appropriate thread.