I was both thinking of the way to obtain it and the potential it has (given it has sand veil), if used in the desert. Given how easy it is to level up pokemon and simultaneously EV train them, one could take a break, go back to Route 1 (if we have the opportunity of course) grind it and come back.
When obtaining it, it should have a guardian. In my opinion, it won't be like Beldum, because Beldum was found inside an area of ruin, with certain computer systems still running. This time, we are in the dragon's natural habitat, so I am expecting it to be guarded by several "adults".