Originally Posted by Fat Vein
Isn't this the reason why Excadrill was banned in BW OU?
Excadrill could freely switch moves, had access to rapid spin, and was able to boost its stats quite eadily. If you compare that to Ditto who is always Choice locked and is pretty much a one trick pony, you see a quite distinct difference. Not to mention that Ditto still has aditional flaws lile low HP, low PP, and not working on substitutes.