Complex sentence: In the second season contestants who made it through to the second round, did not Battle each other, but were rather judged based on a performance, from which the judges panel selected two finalists, to face off in a final battle.
Split into simpler sentences: In the second season, contestants who made it through to the second round did not Battle each other but were rather judged based on a performance. From the performance, the judges panel selected two finalists to face off in a final battle.