This may be stemming from Arkham experience, but I have all of the Challenge Decks and I'm starting to add them in.
If I choose to just keep adding them on top of each other, will I run into issues with game balance? It seems that with the standard adventure, you will see far less events allowing you to continue lower level challenges and the Dragon Runes / Morgath will be harder to come by.
Anyone have experience with this?