"Minor Problem on Earth-6" from Ambush Bug: Year None #1 (DC, 2008) by Keith Giffen, Robert Loren Fleming and Al Milgrom
In the more recent Ambush Bug mini, I missed Giffen's older art style, and must admit I preferred Buggy's relationship to Julius Schwartz to the one he now has with Dan DiDio. Year None seemed to have so much pent-up satire about the DCU that it became an exercise in taking the piss out of every crossover event of the 2000s. It seemed angry with the state of the DCU, going so far as maddeningly omitting issue 6 (of 7) from existence as a statement on book lateness and numbering shenanigans. Even so, it had some delightful call backs to DC's long history, such as the checkered banners and JLA transformation stories of the 60s (above).