User blog comment:ImperiexSeed/The oldest being, archangel or leviathan?/@comment-5106744-20120611040013/@comment-31.53.226.53-20120612203240

yeah leviathans don't have souls, which i personally dont get cause why would dick go to purgatory then? they haven't killed any archangels, its just implied by cas and death they probably could. leviathans can kill all the members of castiels garrison which means hier level angels like anna's original position and its has been implied they can kill all angels. though sam overpowered lucifer, i think it unlikely anyone can overpower a leviathan as leviathans dont really possess people as such.