"Cold War" from Justice League Adventures #12 (DC, 2002) by Christopher Sequeira, Min S. Ku and Mark Propst
Why has this supervillain team never been assembled in the proper DC universe?! Polar Lord?! Brilliant! Does it need to be said that comics based on the WB cartoon were often better than a lot of mainstream fare? Well if it does, I'm saying it here. I loved the Justice League cartoon on TV, and I don't remember a bad issue of their comics Adventures either.