December is going to be an exciting time for Marvel fans. While there is plenty to look forward to all through the year, December is particularly exciting because that’s when Avengers: Doomsday hits theaters — and with it, the X-Men make their way to the Marvel Cinematic Universe. It’s far from the first time the […] The post The 7 Best X-Men Comics to Start With Before Their MCU Debut appeared first on ComicBook.com .