12. Fighter
You swing your fists harder, but in the end your knees still get broken. Sam, to his credit, is still making deadly use of his weapon. His eye was swollen but he doesn't stop.
Dean was slowly coming to life. Trying to jump up, but he's still teethed to the floor. Sweet looks from him to you, and snaps.
Dean drops. Sam lashes out and breaks free of the demon that was holding him. He makes it to Dean's side just in time to hear him die.
"You should have talked to me." Sweet shrugs, leans close and simply… snaps.
The end. You killed Dean. Start over.