User blog comment:Avataress0/Injustice/@comment-5060912-20130420235447/@comment-432124-20130423023038

I know that Superman was a deus ex machina. That's probably why they didn't bring in the good version of him until the last chapter. What I'm saying is that Martian Manhunter would have ended the whole thing too fast. With him and Superman, they probably didn't want two deus ex machinas.