>>96787919
Not much more to it than with the other anon said. Sanderson was a mega fan of magic and wrote a book set in innistrad just because he liked the setting so much. He donated it for free to wotc on the stipulation that they distribute it for free on their website with the option to buy it, but all proceeds had to go to charity. Within a year Wotc removed it from their website and they never donated a single cent of the book sales to charity. They also used his OC, Davriel Kane, in several printed cards that will likely never get reprinted now.