The Jokeris one of the dark-skinned villains to ever exist , and he ’s no stranger to teaming up with other villains at times , but even Joker lose his temper at other evil - actor when they harmRobin . The villain Black Mask found this out the hard way when he killed Batman ’s quaternary Robin , Stephanie Brown .

Few comic book character have dealt as much harm to their fight hero as the Joker . From reduce off Alfred ’s hand , inject Barbara Gordon in the spine , torturing James Gordon , andbeating Jason Todd to deaththe Joker has prove to be an inviolable menace to the Batfamily and their ally at orotund . Joker has n’t ever really interfered with any other villains in their attempts to kill Batman , he never seemed to give care when Bane broke the Bat , or even when Riddler adjudicate to outmanoeuvre Batman once again . Joker has always permit the other villains have their turns … that is until Black Mask guide affair too far .

InDetective Comics # 810by Andersen Gabrych and Pete Woods , readers see Black Mask after the case ofWargames , fighting Batman . AsBlack Mask attempts to escape The Dark Knight , he is captured by none other than the Joker . Black Mask and Joker struggle for a while with Joker eventually winning , thanks to him bring a gun to a slugfest . Black Mask is wholly surprised that Joker is attacking him , not even know why , until Joker so kindly informs him . In Joker ’s own words , " Oh , Blackie McMaskie , Everyoneknows my favourite job in the whole wide world is kill Robin . "

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One of the Joker ’s crown achievement in comic account , even expectant than the infamousKilling Jokeis what he did to Jason Todd . Joker is the only Batman baddie to have in reality kept a Robin drained for a significant period of sentence . Whileother villains havetechnicallykilled Robins as well , it was only for a few seconds or by a fairly unimportant villain , as is the event with Heretic and Damian Wayne . Joker is the only one who killed a Robin and had it reallymatter . Jason Todd was dead for 17 real - world years , that is a huge acquisition for Joker in a medium where demise scarcely ever weigh . Black Mask amaze Stephanie Brown to last , she was n’t Robin for long , but she was one . While this was finally retconned , at the time , both reader and the Joker consider that Black Mask had truly killed a Robin . Joker convey his rage when he told Black Mask , " You ruined my living when you killed Stephanie Brown , the sweetest little Robin one could ever desire for ! Do n’t you be intimate that ’s my job ? "

Black Mask has been a pain in Bruce ’s life for a while , his manipulations during theWargamesstory arc caused mayhem throughout Gotham and conduce to the death oftwoof Batman ’s trusted teammates . Black Mask was clearly fine with making enemies of the Batfamily when he killedRobin , what he distinctly did n’t expect though was making an opposition ofThe Joker​​​​​​.

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Joker berates a distressed Black Mask over killing Robin.

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