I think it could be cool to have maps that can only be played with a pre-determined party with a fixed set of items/cards. That way you could tune things very tightly in terms of what strategies the player will need to use to win. They could also be way over the top epic affairs; provide weapons and armour that are just nuts (that can't be transferred out of the party), and pit the players against nightmarish opponents not seen elsewhere/yet. You know; ancient dragons, lords of the pit, titans etc. Given this game is reward driven, these challenge maps could be very hard, but award things other than items. Perhaps special miniatures to brag about? people could show this stuff off in multiplayer. For the game designers, this could be a way to test items and opponents on players before building them into the game later.
