In the recent film, Avengers: Age of Ultron, all of the Avengers come back, even some new ones. However, Black widow comes back, with escrima sticks. Now as everybody knows, after Dick Grayson left Batman's side he became the hero Nightwing. His trademarks are having a black costume with a blue/gold bird on the front of it (depend on how far you go back), and electrically charged sticks called escrima sticks. In the new Avengers movie, Black Widow starts using them to fight the weaker forms of Ultron. This has never been in any of the comic books that Marvel has ever published. Maybe this happened in some kind of weird fan fiction but never in a Marvel licensed comic book. This is a blatant rip-off of the DC comics hero Nightwing. I hope not to see this in the future at all, because Marvel should have it's integrity.