You will get one Victory Pack for each battle that you win in the game. The longer you need to wait to unlock them, the much better the cards inside. You also get a Play Pack that opens quickly after each ten battles you participate into, in addition to a Free Pack every couple of hours.

Try to unlock the Victory cards and attempting to manage time (for instance, constantly deal with longer Tier cards throughout the night, when you are not into the game and aim to open as lots of much shorter timed ones throughout the day.

If you wish to buy cards with Crystals, it's worth keeping in mind that the rewards you get are based upon your Tier so I would truly recommend to wait a bit till you get to a good Tier. "Decent" Tier is the maximum Tier you can reach prior to challengers begin to end up being exceptionally hard to beat. The higher you can go, the much better the rewards inside those card loads (free or bought), so it's constantly worth being a bit patient!

Heroes are a bit harder to obtain and the most safe bet early on is finishing the missions. If you are active throughout the game, you will get heroes. Keep in mind: Heroes are necessary in Star Wars Force Arena, however you really win your battles with great, high level decks! Some heroes are much better than others, so make sure you check them all out and see which fits your play design much better