The Children of the Comet are called into action against satanists, psychedelic dimensions, chihuahuas that shoot laser beams from their eyes and a deadly villain who wakes up after many years of being asleep
The Children of the Plague were infected with a disease from outer space that granted them super powers and as a result, they are forced to battle one another in an arena
Four-issue limited series - Cable and Bishop vs. the Children of the Vault, a post-human species seen as the next stage of evolution, superior to mutants in every way who first appeared in X-Men #188 (2006)