User blog comment:EmpyreanSmoke/Leviathan VS Archangel/@comment-27006668-20150923141417/@comment-27006668-20150924230441

1. She still did it by herself. You need a weapon to take down ANY supernatural being. 2. Leviathan aren't immune to angels power. They just negate it. Also Angels can appear without the wings flapping making noise as Castiel was able to spy on Sam and Dean unnoticed. And there is still no proof leviathan can negate archangels powers. They could hardly negate a seraph's power. He still retained his super strength. I think a seraph is stronger than at least a low level leviathan as Castiel was holding his own against two leviathan. It took a couple hits for them to get Cass on the ground. But Castiel was able to knock one to the ground with ONE shot.