“This is the first time a box comes out and has my name on it, which is really cool.” Magic: The Gathering’s head designer, Mark Rosewater, is very excited for his latest project. It’s also his longest one. He has been working on and championing a game that features another prolific game designer’s credit on every booster pack and pre-constructed deck for 31 years. For 28 of those years, Mark has been cooking up his own game, taking everything h…