Well here's a thing that makes complete sense. Step 1: take a writer on arguably the most successful fantasy TV show ever made. Step 2: ask that writer to create a script for a movie based on a popular licensed product also set in the fantasy genre.
Step 3: Profit?
Magic: The Gathering is the movie, and Bryan Cogman is the writer in question, a writer personally responsible for the following Game of Thrones episodes: Cripples, Bastards, and Broken Things in Season 1, What Is Dead May Never Die is season 2, Kissed by Fire in season 3, and Oathkeeper" and "The Laws of Gods and Men in season 4. A pretty good innings by all accounts. 'The Laws of Gods and Men' episode, for reference, was the one featuring that completely bitching Tyrion Lannister speech about how he stands accused of being a dwarf and whatnot. That was a pretty cool speech.
I don't think we've ever seen a movie based on a card game before, and the only movies I can remember based on board games are the terrible Dungeons & Dragons movie and Battleship. Two pretty dreadful movies by all accounts, but the Magic: The Gathering movie appears to be in good hands. It's being produced by Simon Kinberg, who works on the Marvel franchise for Fox.
Could this actually end up being good?
'Game of Thrones' Writer Hired to Script 'Magic: The Gathering' [First Showing]