So, I'm considering creating a searchable website/mobile app for cards for a popular card game. The cards have some text on them and an image. In the site/app, I'll display some of the text and an image ( low rez ) of the card. The app will be sold for an arbitrary amount of money.
I'm concerned about copyright law. I've read what the copyright office says about fair use and the wikipedia article about it. The Wikipedia article mentions low rez use of artwork.
Should I be concerned about copyrights, or does this fall under fair use?