season 12 was little more than a bloodbath for how many characters were suddenly (brutally) killed off. Yet as high as the body toll climbed at the end of season 12
, there was always a sense that those who got the axe wouldn't be gone forever. While one of the victims, Castiel, has already returned
to life in season 13, Supernatural
chose the episode "War of the Worlds" to introduce another. Despite being killed, execution style, by Mary Winchester Ketch is back and badder than ever on Supernatural
and that might not be for better, in more ways than one.