Seven Soldiers - introduces Darkseid and the fate of the New Gods
52 - The introduction of the religion of crime.
The Lightning Saga - Reintroduces the very first Legion.
Four Horsemen - the fate of the Four Horsemen and reveals that Snapper is recruited by Checkmate.
Crime Bible - explores the Religion of Crime
Booster Gold - sequel to 52
JLA 21 - first reappearance of Libra.
Rock of Ages - details Darkseid's reign on Earth, a possible FC future.