The Son of the Return of Ravenloft Again
Over at Dragon+, Wizards of the Coast has published James Wyatt’s Plane Shift: Innistrad, a free pdf that introduces Dungeons & Dragons to Magic: The Gathering’s world of Gothic horror:
The starting point for this document was The Art of Magic: The Gathering—Innistrad. Consider that book to be a useful resource in creating your Innistrad campaign, but not strictly necessary. An abundance of lore about Innistrad can be found on the Magic web-site. This document is designed to help you turn the book’s adventure hooks and story seeds into a resource for your campaign with a minimum of changes to the fifth edition D&D rules.
It’s hard to determine where the snake’s head begins and its tail ends here: Innistrad was MtG’s version of D&D’s Ravenloft, which itself has gone through umpteen editions, the most recent being WotC’s Curse of Strahd hardback; and Plane Shift: Innistrad contains suggestions for moving the action of Curse of Strahd from Barovia to Innistrad.