User blog comment:EmpyreanSmoke/Supernatural Q&A/@comment-70.91.92.65-20150907205530/@comment-24834479-20150912011452

I'm not really sure. I wasn't writing when that was used.

He called Tessa an angel in "Stairway to Heaven". And I don't believe they were retconned, they just announced it much later on.

I believe that a dragon would win in that fight.

Can't help you on that one :/

Yes

I suppose there could be. Why not? lol

Stay tuned ;)