brotherAI Class Decks give you cards for all your Starfinder needs. The Core decks provide class abilities through the first year of The Starfinder Roleplaying Game for specific classes. The Year Update decks add to the core decks with each year's new material. The Envoy Core Class Deck gives you cards for all the Envoy Improvisations and Expertise Talents for easy rules reference. - from the publisher's blurb