If I printed and sold trading cards with pixelated images of iconic pop characters but did not include a name, could i be sued for copyright infringem

If you are printing images that are copied or derivative of copyrighted images, you could be liable for copyright infringement. If you are selling materials bearing trademarks of others that leads consumers to believe that your goods are sold with the permission of or in collaboration with the trademark holders, you could be liable for trademark infringement.