Seriously, ever since he first showed up as a rumoured season 3 spoiler on EqD, he's been sorta fascinating to me. Is he a villain? Is he a side character? A Big Bad? A 'dragon'? A mook?
And what about his name? I know the fanon guys on Derpibooru are calling him Crystallion, but what's his real name?
Not to mention that so far, all we've seen of him canon is a mugshot, no body or anything. If it means finding out just who, or what, the hell he is, then it just makes me wish season 3 would hurry up and premiere already!
EDIT: Well, another season 3 preview video has popped up at the NY Comic Con. Apparently this guy is named King Sombra, and he was the ruler of the Crystal Empire at one time. We still don't know what he properly looks like though.