If I buy more retail boxes, can I add the 3000 BFP and 64 cards from the starter decks to my existing account? What is the cheapest way to get BFP?
Yes to the first question. After you open the retail box, the key is on the back of the manual. Enter it into the Marketplace screen inside BattleForge, the screen where you spend BFP to buy boosters and tomes. After a few seconds of waiting, you will get 3000 BFP and your 64 cards. It will also auto-create the 4 starter decks in your deck pool, which you can just delete. Buying extra retail boxes is, by far, the cheapest way to get BFP. They are $20 in the US and on Amazon.com. I just picked up 3 of them at my local store. EA’s online store charges $20 for 2250 points. Retail is $20 for 3000 + 64 common/uncommon/rare. I will not go into buying from unofficial sources, since it is risky and I do not advocate it.