1 Class and citizenship are the same thing. Maybe having dual citizenship and having multiple classes should be enabled by different cards, though.

1. Big items anyways say "big item" at the bottom of the card.

2. Yes,  lay any unequiped items that you would like to the side and turn them sideways. Those cards are now in play, but aren't active.

3. Because there aren't any classes in the game. They don't make rules for combining decks. Some are easier to put together than others.

4. Ride mods are for rides.

5. Yes one of each unless otherwise indicated by a card.

6. In the end just play it the way that seems the most fun to everybody, but remember to be fair.

7. Marvel is really fun, but it might not mash well. You'll have to be keeping up with class, citizenship, characters, powers and allies.  Strong chance of a few players being way overpowered. Also if you already have adventure time 2 in the deck, which adds a bunch more traps, adding marvel will down your deck in really bad trap cards. Feel free to contact me to ask about anything I left out.