There is the “Duel of the Planeswalkers” that Wizards is going to produce later this year. I think it will come out in December, but I am not a hundred percent sure, since I don’t have a Xbox myself, and I prefer to play Magic with paper cards.

By the looks of it, Duels will be worth its money. Unlike MTGO, the graphics will be at least somewhat decent, and the rules of Magic will actually be enforced in the game, so it will not be a free-for-all that is so common in magicworkstation. I may even pick up a Xbox just to try it out. Who knows?

Hope That Helped!