Harley Quinn Vol. 3: Welcome to Metropolis

Having played out every trick on the fine citizens of Gotham City, Harley Quinn-the Joker's former girlfriend-decides that another city deserves her attention. After all, why menace one city when you can menace two? Especially if the second has a Man of Steel guarding it. Harley hightails it to Metropolis, with allies Poison Ivy and Bizarro in tow.