The greatest part is that, even though it is not recommended to purchase a game, players who are not able to resist attraction can avail 10% off any purchase made in-game. Additionally, you can access other great EA games when you sign up for a subscription.
There are a lot of bars and tabs and specials, packs, events and other things displayed on the screen which players do not need. This could be the case for anyone who keeps taking packs of cards and completes challenges in a short amount of time.
Click the compare button each when you get a new card. Save the card if it can be improved. If it's not an improvement, you can add it to the set. It doesn't need to be part of an entire set? You could either sell it or sell it fast. This will help you save double the amount of time during the course of the year due to having it organized.
It is not advisable to sell or auction off a single card without looking through the whole set. Certain sets are only available through single-player challenges and others are possible to acquire with a bit of luck throughout the year.