Matt Tabak presents the mechanics of the new set: Khans of Tarkir
http://magic.wizards.com/en/articles/archive/feature/mechanics-khans-tarkir
Magic and Tournament rules in various languages
Matt Tabak presents the mechanics of the new set: Khans of Tarkir
http://magic.wizards.com/en/articles/archive/feature/mechanics-khans-tarkir