This expansion for Magic: The Gathering takes place on New Phyrexia, as the armies of the five praetors, led by Elesh Norn and her Machine Orthodoxy, prepare to launch a full-scale invasion of the rest of the multiverse using a corrupted seedling of Kaldheim's World Tree.
Phyrexia: All Will Be One features the return of the Proliferate mechanic (which first appeared in Scars of Mirrodin(, and the Compleated mechanic (which first appeared in Kamigawa: Neon Dynasty), as well as three new mechanics: Toxic, Corrupted, and For Mirrodin!
The set is sold in draft boosters, set boosters, collector boosters, Jumpstart boosters, and bundles (including a limited-edition Compleat Bundle with unique "oil slick" foil cards). Two preconstructed commander decks were also released alongside the main set: "Corrupting Influence," a white, black, and green deck built around corrupting opponents with poison counters; and "Rebellion Rising," a red and white deck built around attacking with token creatures.