I have the LCG: Core Set. Let's say my budget is somewhere between $50-100. Most commonly, I play with 3 players, but sometimes I play with 4. We want to be able to rotate between the decks and feel like each deck has a reasonable chance of winning. We are all very new to AGoT LCG, but very competitive gamers with broad experiences across CCGs, LCGs and board games. In other words, we can pick up on more subtle strategies that have a higher learning curve, we just want to make sure that picking a certain house just isn't a handicap.
What's the most efficient way to improve the starter decks to be playable and relatively balanced against each other?
Thanks for your time. This is actually going to be a Christmas gift, so swift replies are greatly appreciated.