NetLister is intended for you to be able to easily proxy a tournament list you're interested in. When you find a list that you want to print and play, hit the print button. This will bring up your browser's built-in print dialog. You'll notice that all webpage controls, banners, buttons, etc. DO NOT SHOW UP on the print-out! The only item that will show on the print other than the cards is the squad info, if you have chosen to display this information.
You may choose to go directly to your printer or save the image as a PDF. For unknown reasons, you may find that different browsers' "Print to PDF" options will work better or worse with Infinite Arenas content. You may need to try more than one to find one that works for you. I have had good luck with Firefox's "Microsoft Print to PDF" and Chrome's "Save to PDF".