All MtG card images are available on torrents -- not sure if allowed to post links, but a google search is enough. It should be relatively easy to batch convert the 3GB+ worth of hi-res images into lo-res suitable for DS. And in fact, for DS, it may make more sense to develop a game with just text, at least as a first stage.
I also have an Excel spreadsheet that lists every card's text, mana cost, etc -- I'll be happy to share it (I don't think it's violating any copyright).
I also have an Excel spreadsheet that lists every card's text, mana cost, etc -- I'll be happy to share it (I don't think it's violating any copyright).