CLICK TO ENLARGE! DO IT!!! YOU MUST!!!
I've searched the internet for a simple checklist of 2007 Upper Deck VS System playing cards to find out exactly where this art was printed, and I've plumb given up. As its owner noted, three years after its conception, "This magnificent illustration was actually reduced to a barely 2x2 inch image!" So screw it, we're going to just relish the magnificence of Zatanna (in top hat & tails,) Superman, Martian Manhunter, and Wonder Woman by the modern master himself!
Update: A big "thank you" to LissBirds for identifying the card as DC Legends Card DCL-058: Stalwart Defense