I just recently started playing AGoT, and I had a friend help me to build a Bara Knights deck that runs pretty well, but it's not as strong as it could be due to lack of a card collection. I have the Core, as well as the King of the Storm pack, and a few chapter packs, but I'm trying to figure out what would be a few good packs for me to buy. Also, What are some good Knight cards you might suggest. I know Laughing storm is a must, but any general suggestions to a new player? (Note: I would put the decklist up, but unfortunately I don't have my deck nearby due to moving reasons. I will try to post one at a later date.)

Knight of Flowers from Secrets and Spies, Eldon Estermont from Mountains of the Moon, and of course the Laughing Storm from Gates of the Citadel are all fantastic, and they're all knights. Those, plus the core set and Kings of the Storm should give you a really good start.

From the core set, Davos Seaworth and Ser Axell Florent are pretty good knights. Vanguard Lancer, Knights of the Storm, Guyard Morrigen and Parmen Crane are all from Kings of the Storm; and the latter two work well with the Baratheon Lords you're likely to have around. Ser Cortnay Penrose from Kings of the Storm is great, and is a lord to boot.