While there are a number of aspects of the John Wickfranchise that stretch the imagination in terms of the fantastical elements throughout, none make as little sense as the blood-oath markers. The idea for the markers is simple enough: one person in need of someone's help becomes bound to the person who helped them, promising to repay the debt at a later date no matter what that may entail. However, the limitless nature of these markers and the lack of clear rules and guidelines as to what and when the debt must be repaid make the marker system one that simply shouldn’t work, and one no one in their right mind would ever want to use.
A perfect example of how the blood-oath marker system makes absolutely no sense is shown in the five-part prequel comic series John Wickby Greg Pak and Giovanni Valletta. The series tells the story of John Wick before the events of the first film hunting down a group of trained killers who destroyed his childhood town and murdered a number of people close to him. When John Wick becomes a threat that is too much for these killers to handle, the gang seeks assistance from a Russian mob boss named Maria. Each member gives her a marker, vowing to repay Maria if she helps them permanently get away from John Wick. However, the task that she demands of them, one they are bound by threat of death to honor, is to kill John Wick.
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The task Maria assigns to the gang members in the comics completely negates the whole reason they gave her their markers in the first place. However, based on the rules of the markers first established in the film John Wick Chapter 2, Maria is completely within her rights to ask them to complete
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