By Zach Rabiroff — Benjamin Percy and Joshua Cassara’s X-Force may or may not be the valedictorian of the Dawn of X line, but it’s certainly the most improved student. From its humble beginnings as a somewhat perfunctory entry in the new era of X-Men comics — a healthy, harmless dose of gratuitous violence for those put off by the heady sci-fi meanderings of Jonathan Hickman’s work — it has grown into one of the strongest and most interesting ensemble books coming out of Marvel. Against the odds, a book that seemed to be about blood and guts turns out to be full of heart.