About half of the top tier Modern decks today didn't exist a year ago.
For a non-rotating format with fifteen years of cards, that's astonishing. The weird part is that not all of these were even because of a new printing. Some of them just took people a long time to figure out.
Right now, Modern is fairly well-defined. Everyone knows Humans, Hollow One, U/W or Jeskai Control, Tron, and Ironworks are the decks you have to beat at the top tables. But what about the rest of the metagame?
There's a ton of promising brews lurking at the bottom of the metagame distribution that could be the deck you wish you had taken a look at earlier.