I am looking for a season 4 fic. I remember the titles of each chapter was a lyric from the Fort Minor - Remember the Name (Ten percent luck, Twenty percent skill, fifteen percent concentrated power of will, etc.) I think it was Uriel making Sam and Dean live out many alternate lives to test if they would choose each other each and every time or not. (They weren't related in those AUs and I think Uriel said that Sam and Dean were only so devoted to each other because they were brothers.) To prove to Castiel that they weren't worthy or something? In the end after Dean and Sam chose each other over and over even though they weren’t related in those AUs, Castiel finally pulled them out. I want to say that the story was wincest? Not super sure though. Also, I think the story might have been part of the Big Bang Challenge? Thanks in advance if anyone can find this story for me! Or something similar?