What are the best packs to buy for coins?
Only the season offers. Anything else will most likely lose you a lot of the coins you spent
Confucius say, "The best pack is the one you don't buy"
The only reliable source of coins is when there is a platinum bundle offer. There was one just posted a few days ago that expired, from what I saw online people were getting around 500k from a $25 bundle. It will likely be a couple of weeks before there is another offer. You can always check promo offers for the odds of pulling good cards, sometimes the odds are favorable and worth the gamble. I bought a $20 pack a couple of days ago and pulled an LTD and a champion. But such pack luck is rare. And if you are going to spend money on this game and have an Xbox— look into CDKeys, you can get Madden points at a big discount.