Green Lantern: Emerald Warriors #13

A yellow crime-scene tape stamped "GL CORPS LINE — DO NOT CROSS" splits this 2011 cover right down the middle, neatly dividing two heavyweights who look anything but cooperative: Batman crouches tensely on the left, cape billowing amid flecks of blood, while a rugged, ring-bearing Guy Gardner squares up on the right, green energy already crackling from his fist. Dan Panosian's cover art makes the tension between the Dark Knight and the hard-headed Emerald Warrior feel genuinely charged, with that crime-scene barrier serving as both boundary and dare. Peter J. Tomasi and a full creative team deliver the story inside, promising the kind of gruff, no-nonsense teamwork — or clash — that only these two could produce.