When an attention seeking YouTube prankster is assaulted and left financially debilitated, he uses his pranking skills to blackmail the crazy scammer, but must survive a dark murderous world where responsibility lacks in a similar way to his pranking.

"Financially debilitated" is awkward. ?He's unemployed and broke, right?

Also, first you say he is assaulted then that he's going to blackmail the perp, a ?crazy scammer. ?Well, which is it? ?Was he assaulted or scammed? ?Who is his antagonist?

And please clarify "YouTube prankster". ?What does that mean? ?That he posts videos of real-life situations where innocent, unsuspecting victims get punk'd? ?If that is the case, it's kind of hard to sympathize with him. ?Seems like he got some "street justice" for the way he treated others. ?He's sort of a tepid anti-hero character.

Also, his motivation is a "selfie" : ?he's only acting for his own narrow?interests. ?While getting revenge is a reliable motive, usually a protagonist ?who starts out as an anti-hero redeems himself by acting for a principled reason, too, for something other than his selfish self, ?say for a stakes character who has likewise been victimized by the antagonist.

fwiw