The marketing of Deadpool & Wolverine focuses squarely on the two heroes in the title. Dragging Hugh Jackman back into the role he's occupied for two decades and finally letting him play with Ryan Reynolds' beloved take on Deadpool will guarantee fan excitement. However, they can't spend the whole film's runtime fighting each other. Something has to bring them together. That something will be Emma Corrin as Cassandra Nova, but where will the first MCU Deadpool's antagonist fit alongside her stablemates?