User blog comment:Calvincambridge30/Versus/@comment-27006668-20151022004049/@comment-27006668-20151022161200

Seraph Cass didn't want to kill Rachel. He was just defending himself. Are you really implying that Castiel with 50,000 souls, who was able to banish an archangel, wouldn't be able to beat Lilith?

One seraph held their own against two leviathan. No demon can fight even one leviathan on their own.

While Castiel was weakened, and he looked like he was going to fight Crowley, Crowley was scared and ended up retreating.