The beta period for Bluehole and En Masse's action-MMO Tera is finally over. If you missed out on the testing and have been waiting to jump into the live game, now's your chance. In case you don't know what Tera is, you'll find a video below explaining some of the basic mechanics and showing off how it's different from the MMO style of World of Warcraft and Star Wars: The Old Republic. Basically, it plays more like an action game...