User blog comment:ImperiexSeed/The oldest being, archangel or leviathan?/@comment-3481504-20120608025050/@comment-31.53.226.53-20120609150233

i can understand that however: Michael was built to lead gods army but that means nothing. they may have a superior grace but it just means they are more powerful than angels. not that they can make a creature suddenly immune to angelic powers, that makes no sense. If the archangels were powerful enough to destroy all the leviathans with a snap of their fingers then castiel's comment makes no sense. leviathans were locked up because if they were free they'd eat all the humans and kill all the angels. but in the event where archangels were superior and the leviathans attacked, the four of them would have destroyed the levis and the threat would be over and therefore creating purgatory would be pointless. however if levis can kill archangels as well as angels, then making purgatory makes perfect sense as it would be the only way to make sure that they wouldn't kill the creatures god loves most ( without him personally killing them). also if michael was built to destroy monsters like these then he would have done so not just gone ok i can destroy the things that kill my brothers, i'll just sit around while they're unnecessarily locked up. and in response to above the fact jesse can kill billions of angels with a single word does give him potential to destroy archangels. michael and raphael are a part of the host of heaven as well as its leaders.