User blog comment:Gwynbleiddd/Archangels vs./@comment-9249716-20160108180356

There is absolute certainty that archangels can't be killed by leviathans. I'd also like to point out something that they did on the show that actually bugged me. According to a season 5 episode, after we find out God brought Castiel back after Raphael killed him, it seems regular angels do not have their powers inherent to them. By that, I mean that there was the idea that Castiel's powers were weakened because Michael was in charge of Heaven in God's place, and so Michael weakend Castiel for helping the Winchester's resist the apocalypse. Only later do we find out that seraphs, archangels, and possibly even the grigori will always keep their powers even if their fallen angels. So basically in season 5, they needed a way to weaken the good guys so they had to weaken Castiel. Rather than have other angels pursue him, they just weaken him (the idea seems like a cop out just to make it more dramatic). Angels, as a whole species on the show, are arguably the second most powerful species, so all the talk about archangels being so weakw as actually someone taking speculation and trying to force the idea that it was true with no evidence.