It was intense, two of the players basically canceled each other out of the game because they kept attacking each other
I also read the faq but I don't think it answers this question.
Remember that any cards removed from the game (e.g., from battle) are not shuffled back in.
All the gang member cards we had left that weren't in our decks had been removed from the game via combat. We had already reshuffled the non-drafted cards back into the draw pile and bought them all.