Duelist Saga is a special release that was announced at the New York Comic Con. The set will most likely hit the shelves in March 2017.
At this point in time, nothing has been revealed about the contents of the set, apart from the fact that it will “introduce brand new cards from all Yu-Gi-Oh! series - Duel Monsters, GX, 5D’s, ZEXAL, and ARC-V.”
We will update this page as soon as more information will become available.