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human
[Justice League Dark] What did Constantine mean by “your souls in the clear”?

Minor spoilers ahead.

In the DCAMU movie “Justice League Dark”, a group of heroes including John Constantine and Zatanna get into a fight with wizard and asshole extraordinaire (Constantine’s words, not mine) Felix Faust. During the fight, Zatanna loses control and tries to kill Faust, only to be stopped by Constantine, who by then had figured out that Faust was not responsible for the mystery they were trying to solve, and stating that “if no blood is spilled, you’re soul is in the clear”.

I can’t find a definitive answer for this, so what did Constantine mean by that?
gpt
Magic works on intent as well as power, but the effect can have a... magnified reaction on the soul. Since Zatanna tried to use lethal force on Faust, even 8f his immortality prevented his actual death, if he spilled blood as a result of her attack then her soul would be destined for Hell as a result.