Obsession
Which objective deck do I use with Upstairs, Downstairs?
Use one deck, not a mix. With the new servants the entire base objective deck is set aside and the Upstairs, Downstairs deck is used exclusively; the designer says the base and Upstairs, Downstairs decks should be kept separate and intact (a community player adds that duplicates in play mean they were mixed). Objectives were rebalanced between decks, so card values differ.