So I did a little looking around.
I Googled images for "Magic the Gathering" in 15 pages I didn't see one example of the image they used for iTunes.
I then Googled images for "Magic 2013" and found one image on page 3 that is similar but hard to see because of text, and then found the image on page 4 of the search.
Lastly a quick search for "Duels of the Planeswalkers" since thats the name they have used for several of the online products. No sign of the image in 19 pages of pictures.
I know this does not impact the quality of the game, it just struck me as odd an another example of WotC's challenges in the world of electronic formats for its games.
JD