Hi, I get the impression that cards from the expansions / add-ons are combined together with the rest cards from base.
For exploration cards, are combined and shuffled together. But what if I want to play just base game and during the game, the exploration cards from the add-ons are drawn?
One case that I might see possible is the Fear the Devourers add-on has Exploration cards that specific with the devourers. If during the game I drew this specific card, I should encounter with the Devourers?
I'm not adding the expansion cards until I actively wish to play with that expansion- it saves me hunting through more cards, and will keep some things fresh for later. I don't see any benefit to adding them to the box before you want to use them.