I've been reading Grant Morrison's JLA, and I'm a bit confused. After 9 issues, the roster suddenly changes without much explanation.
- What's up with the blue-faced Superman? How did he change to this version? (In the first page, where the roster is listed, his name comes last, followed by a question mark)
- Why is Wonder Woman not on the team?
- How did Aztek join the team?
It will be immensely helpful if someone could point me to the titles and issues which answer these questions, without posting any spoilers.
EDIT: As pointed out, the Electric Blue Superman appears before the Rock of Ages arc.