Professor X recruited Wolverine to join a new team of X-Men and he resigned from his position in Canada, disregarding his superiors' objections. Over the following year, Wolverine was revealed to be a mutant whose skeleton had been laced with the unbreakable metal adamantium. Initially misanthropic and a loner, Wolverine often clashed with the X-Men's leader Cyclops. Given to berserker rages in combat, he slowly learned how to control his feral instincts. However, Wolverine is the X-Man most likely to permanently deal with adversaries who dispense lethal force. Despite his quick temperament, he has been described as a warrior poet with an iron will.
