My complaint:
The last 2 quest have given me duplicate gold cards to a collection that I have completed a long time ago.
Since I spend billions of coins on magical chests often and hardly ever get a new card I depend on questing and tournaments to acquire new cards not old ones.
I do spend real money on this game and play it daily so I would like to see myself advance in the game.
Suggested solution:
It would be nice if I could at least get 1 or 2 new gold cards for new card collections to replace the duplicates that I've received for a completed card collections.