User blog comment:SeraphLucifer/Discussion/@comment-79.115.71.25-20151212144937/@comment-26992577-20151212174746

I don't think that Eve/Leviathans can influence an archangels power in any way. Last episode we saw that common angelic weaknesses doesn't necessarily apply for archangels. Lucifer simply erased those enochian sigils. However, I don't think that an archangel could kill a leviathan without the bone weapon/ First Blade + Mark of Cain/ Death's Scythe.