Originally posted by TheKahn
I think that was when Thanos had the IG and was nearly all powerful. He could raise the dead or just about anything else he wanted. And I don't know weither that would make GL's transmuting powers greater as they hardly seem to use them, but didn't Hal want the Oan energy to bring the people of coastal city back from the dead? So maybe with enough energy a GL could create and/or restore life. But I don't think it matters in this fight.
Makes sense.
Hal actually did re-create Coast City. From all the memories he had, he was able to make the town along with living people. Only thing is that everyone was green. Hal started to run out of energy and thats the reason for wanting the OA'n enrgy. The Guardians made a specific rule not to use the rings power for personal gain. Hal gained a whole city. If the ring didnt have to recharge, there probably wouldnt have been a rampage by Hal. Maybe eventually, but not then. But youre right. All can be done with enough energy.