Harley Quinn #21

That wide-eyed grin peeking through a splintered door — bloody cleaver in hand — is pure Harley Quinn at her most delightfully unhinged, and Amanda Conner's cover art captures every gleeful, unsettling detail. The speech bubble calling out "Hey, Deadshot!" hints at a very entertaining crossover of chaotic personalities in "Tug a' War!" Written by Conner and Jimmy Palmiotti with interior art by John Timms and colors by Paul Mounts, this December 2015 issue delivers the brand of anarchic humor and sharp storytelling that made this New 52 run such a fan favorite.