King Sombra was, as many others have said before, a good villain with not enough parts. I think part of the reason that he was shallow and swat so easily was the fact that the ponies had an easier way to defeat him, whereas the other villains took more work: Discord hid the elements and corrupted the mane six, NMM was always one step ahead. and Chrysalis's defeat was almost pure luck. The Crystal heart was in the Crystal Kingdom, no surprise there, and the mane six had the help of Cadance, Shining Armor, and the Crystal ponies. It sucks, Sombra had so much potential. Aside from all that, am I the only one who thinks The Crystal Empire has a slight relevance to Over a Barrel?