The Steins are found all over the world; and Dean killed an entire household of them.
Metatron has the devil tablet and gawd knows what spells to use it.
Rowena has the book of the damned.
The Angels are kinda mad at the because of the whole breaking Metatron out thing.
Dean killed Death…
Oh and yah…the Darkness…
I’m guessing Dean isn’t going to be lying on that beach ‘fraternising with the local wildlife’ anytime soon. hell, maybe he’s eliminated beaches from existence.