User blog comment:EmpyreanSmoke/Weaknesses/@comment-69.64.58.255-20151001043355/@comment-24834479-20151001043604

That's he thing though. When Death said "angels" it meant angels in general. Not one specific type of angel, not lower angels, all angels. Archangels are angels, which fit into the term, which means, unless otherwise stated, Leviathan can kill archangels.