Changes

Before Castiel dies, he leaves a bloody handprint on Dean's shoulder, mirroring the [[Castiel's Handprint|burned handprint]] he left on Dean when he pulled him out of Hell in [[4.01 Lazarus Rising]]. Misha Collins later revealed that the handprint was not scripted, but rather an idea that he, Jensen and Richard Speight, Jr. workshopped on the day of filming.