User blog comment:Abdelfadeel/Why is Cain so overrated?/@comment-88.255.153.50-20151110105208/@comment-27006668-20151110173438

He held it before creation dude. He held it A LOT longer than Cain. The strength between a seraph and a regular angel is NOT the same. Nowhere near in fact. Castiel couldn't kill higher demons when he was a regular angel. But as a seraph, even in a weakened state, he was capable of killing the king of hell. Two Regular Angels are completely no match for a leviathan. One weakened seraph was able to hold their own against two. You're right, The Mark doesn't need the blade to be activated, but you get a shitload of extra strength with the Blade. Also wikia contributed, read my arguments about The Dean and Castiel fight.