Sorry, it's stays +1 card packs at Rank 25. You do get 10 diamonds, which add up after a while.
I used to stay on top of the outfits for the wiki, but I've been slacking. I probably have them somewhere too. It looks like you are registered, so you can probably add info if you'd like. If you aren't comfortable with that, you could post a comment on the page you want to update info for and someone else can copy paste it in. It's not a bad idea to have some discussion on some topics before they are posted anyway. Those of us who post have just been throwing stuff on and trying to make note when something is speculation.