You it's interesting about this episode. It was one of my favorites so far. The other openers may have had stronger villains, but this one was a different story, it wasn't villain driven so it didn't need a colourful villain like Discord. Sombra was perfectly dangerous. I felt his impending presence throughout the episode, and the stress he was putting on the characters. For those of you who think he wasn't bad enough, I point you to the one crystal pony that ran from the crowd when he returned. That pure fear, that level of terror was all the development he needed. Her reaction when she ran smack into him while running away? Possibly the most powerful moment in the episode. Overall, a VERY good episode and highly underrated.