I apologize if this is a dumb question, but I searched the forums and site proper and couldn't find an answer.
I've been playing for about nine months or so, and I've recently completed building good, battle-tested, tournament-size decks for each of the six houses. I'm now working on building second and third decks for some of the factions, but I've run into a problem: I have enough cards from the various chapter packs I've bought to make more decks, but I don't have enough gold producers/cost reducers to make them usable.
Is there a way to purchase these kind of general resource cards in any noteworthy amount, or do I just have to make do with the handful I get from expansion packs?