User blog comment:EmpyreanSmoke/Weaknesses/@comment-27036944-20151002015940/@comment-3045936-20151124031007

I could go and put Leviathan under their weaknesses, and be within wikia, SPN wikia policy, as well as within my user rights. As while it's not exact. There is only evidence to say they can kill Angels which Archangels are just the highest form and order. Never that they cannot. However due to their power. I am fine as listing it as a possible one. This way, if it's proven they can't or can it's easier to fix. But to say they (CANNOT) makes it bias and pure speculation as you have no evidence they cannot. While I have at least circumstance evidence. Than I am willing to meet in the middle with.