Cartoon Network 2-in-1: Ben 10: Ultimate Alien / Generator Rex

From 2011, DC Comics paired two of Cartoon Network's action heroes in a single comic: Ben 10: Ultimate Alien and Generator Rex. Written by Amy Wolfram with art by Ethen Beavers, this one-issue crossover brings together two fan-favorite animated worlds for a team-up that's both a treat for longtime viewers and a neat snapshot of early-2010s superhero animation.