You can't make a movie out of a card game. And I'm saying this as an erstwhile MTG fanatic (I've been on a break since the Innistrad block). I've seen too many of these attempts fail, and for no better reason than the simple "game ≠ movie" rationale. The novels are decent, but hardly movie-worthy.
Still, if you think there's any reason to believe in the franchise's cinematic success, I'd be glad to hear what you have to say. MTG might just be a first...