Talk:Episodes, films, and shorts/@comment-24624384-20140516111532/@comment-26973802-20140518152017

That was an old ponytail. Tirek's appearance was supposed to seem like an end-of-episode gag at first (like Fluttershy's fang) to seemingly prove that this "shadow pony" really does exist.

And of course Tirek didn't escape 1000 years ago, he escaped in It's About Time. He has no connection to Nightmare Moon.