Do the cards in the shop depend on the arena you are in when the shop refreshes?
Will cards from a higher arena than you appear in the card shop, or will only cards from the arena you are in (or below) when it refreshes be available to purchase?
Solution 1:
Yes, Like every other option for cards, the shop also takes into account what arena you are on at the moment.
If on your main screen it shows Arena 6, there is no way you'd be able to buy the Royal Giant or the three musketeers with gold from the shop.