I've been looking on the board to see if anyone knows what the "creativity" (+25%) trait does. It seems nobody has an answer. But a few games ago, I had the trait, and late in the game, when I was building a new ship, I noticed a weapon I hadn't seen before... I think it was a missle weapon... anyway, it did something like 8 damage - WAY above everything else I had. I didn't pay it too much notice at the time (except "load up on these!!"), but haven't seen the weapon since that game (and I haven't had creativity since then)
Perhaps that's what it does? Gives you a cool ship weapon otherwise unavailable?