Iron cards give you 1 of 3 effects based on the type of another card:
- +1 action for action cards
- +1 coin for treasure cards
- +1 card for victory cards
It's always bugged me a little that there was no way to get the 4th basic effect, buys, out of Iron cards. But it made sense, there were only 3 basic card types to attach effects to, and buys are the least generally useful. But all that changed with Nocturne, which introduce a fourth basic card type: Night. Making Night cards give you buys would be nice for a couple of reasons:
- It makes it so Iron cards can give you all 4 basic effects, something about that just feels right to me.
- It makes it so Night cards don't interact so poorly with Iron cards, currently they're effectively dead cards like curses.
- The incidence rates would work well, on some boards a single +buy can be game changing, getting a Night card and an Iron card together would be pretty rare but when it did happen it could be a game changing combo.
Of course, this is unlikely to happen since it would require re-releasing of 2 sets, which is prohibitively expensive and probably not worth it. But maybe someday they'll be re-released for other reasons and this can be included.