>>107875714Let's see.
The first time he was pulled out of the universe by the Flashes working together, and then stranded on a planet with a red sun. That depowered him until he created an armor which can convert any kind of radiation into yellow sunlight.
He came back, then fought, well, everybody, until the Supermen from Earth-2 and New Earth fought him and dragged him through Rao - Krypton's red sun - which depowered him again. Afterwards he was imprisoned inside a red Sun-Eater, a being which feeds on suns and apparently retains its qualities sufficiently to keep him under wraps.
He was broken out by the Yellow Lanterns and joined them for a time out of curiosity, finally turning on the Anti-Monitor who was leading them at the time, but when he fought a Guardian of the Universe, the latter exploded and the explosion pushed him out of the universe.
He wandered the Multiverse for a time, trying to find his perfect world, until he found the one he was looking for had just been ruined by Monarch. He fought Monarch and tore his armor, and the resulting explosion destroyed that entire universe... but he survived again.
He ended up in the distant future, where he ended up fighting his own future self; but when they touched each other they negated their existence, and the younger version ended up depowered - for a time - in a version of his original universe, where he fought and destroyed many Black Lanterns. It was implied he was killed, in the end, by one through trickery, but it didn't happen.
He was finally defeated in the present by.... the Teen Titans? Young Justice? Anyway, they stuck him on the Source Wall and he hasn't been seen since.
