When a super hero named the coon (obviously Eric Cartmen) is one upped by a mysterious hero named mysterion, Cartmen (and the rest of the audience) will go through great lengths to figure out the true identity of Mysterion.
This episode gives South Park something fresh and original all the way into its 13th season. While this may not be the funniest episode ever, its cleaver writting more then make up for it. At the end of the episode viewers will be left with the question, "who is mysterion?" (Not to give away the ending)
Believe it or not there are enough clues in the episode to figure out who mysterion is, but it will likely take multiple views of this episode to solve the mystery because it is not easy. This is good because it makes rewatching this episode also fun as we try to figure out the question, "who is mysterion?"