#yeah I know Sam was Lucifer's 'perfect vessel' but this aint about him

[casdeans-pie]

Also I wish there'd have been some kind of cool consequences for Dean being 'The Michael Sword'

Maybe something like Angels they meet exclusively refer to him as The Sword and he haaaates that

Or it explains why he's so good with handling an Angel Blade

Or why he's so resilient for Just A Dude, because he was literally built to contain an archangel. Maybe he heals a bit faster than a regular guy, but he's never noticed before because Sam heals at a similar rate.

Maybe it would explain why he gets so twitchy about religion and churches, because it's baked into the loaf that he should end up as the vessel for Michael but Dean being Dean subconsciously rebels.

Or there's a conversation where Cas reveals that whenever he heals him he has to physically put the breaks on his own Grace because Dean's body pulls it in like a magnet. It's why he's so susceptible and sensitive to Angel magic, like time travel and alternate reality stuff.

Or sometimes Dean can read tiny bits of Enochian or understand a tiny bit of Latin but then when he realises it's happening and he's aware of it the ability immediately goes......

Dean: Wait. I think I can read this!... It says - beware the... the....... *clicks fingers* Shit. It's gone again.

Sam: The next word was kind of important Dean !