Legendary®: Marvel Studios The Infinity Saga is the long-awaited expansion to Legendary®: A Marvel Deck Building Game themed around the Marvel Cinematic Universe's Infinity Saga. Thanos and his Black Order have assembled an army for land assault on Earth, and the Avengers assemble everyone they can to resist him. It's all-out war. Can these Super Heroes withstand the awesome power of the Infinity Gauntlet?