Discover a new side of the Crucible in Worlds Collide! As with other sets of KeyForge, Worlds Collide is a companion to Call of the Archons and Age of Ascension, not a replacement or a sequel. You do not need to start with Call of the Archons in order to reach Worlds Collide, and Archon Decks from each set are equally matched, so you do not need to switch to Worlds Collide Archon Decks in order to remain competitive. Rather, you are invited to continue your exploration of the planet with a cardpool of 405 cards, mixing in cards from each of the other KeyForge sets and introducing two brand new Houses!
Worlds Collide rotates out Mars and Sanctum to make way for the Saurian Republic and the Grand Star Alliance, but that does not mean that they are gone for good. The Crucible is ever-changing and evolving, and these beloved Houses will have the chance to return in future sets of the game!