User blog comment:EmpyreanSmoke/Weaknesses/@comment-3045936-20151001223032/@comment-24834479-20151002021940

I'm not assuming that angel meant archangel. Angel means angel. And archangels are a type of angel, so the word angel consists of archangels as well. It is no assumption. Archangels. Are. Angels. Leviathan are a type of angel, and there is absolutist n.o.t.h.i.n.g that says they are excluded, just like there is nothing that says reapers or cherubim are excluded. They are angels, which are vulnerable to leviathan. That's all there is to it. The end!