Dark!Dean

[typezer0]

Hey, so I'm looking for some stories that take place during season 9, so spoilers under cut.

I'm looking for any fics where, after Dean receives the mark of Cain he starts acting short tempered or abusive towards Sam. I don't care whether he notices it or not, nor whether it stops. Wincest or Wincestiel is great but if it's not than I would prefer it to be Sam centered (So like Gen or Sam/Castiel, ect...).

Thanks so much!