KeyForge: Mass Mutation Deluxe Deck - Rules of Play says:

Each Mass Mutation Deluxe Deck contains a single, ready-to-play 36-card deck, bringing together three of the diverse Houses of the Crucible into a single deck—featuring its own mix of cards and unique from every other Archon Deck in existence. You’ll also find all of the tokens that you need for a single player to start playing the game of KeyForge!