Name: David Cain
Skills: Assassin skilled in many forms of armed and unarmed combat, peak physical condition, Master spy and Master Martial Artists.
Why: Being a top assassin it'd be no surprise as to why Black Mask would find and hire him to kill Batman, not only did he train a young Bruce Wayne, framed him for murder and can give him a run for his money let me say if he's in this game out to kill me as Batman gamers need to be prepared because he is no cake walk as a boss. Also he has a bad relationship with the other two assassins Deadshot and Deathstroke.
Name: Lady Shiva aka Sandra Wu-San
Skills: Not only is she one of the most skilled martial artists in the whole DC Universe she shares her title with other great fighters such as Batman, Black Canary, and Richard Dragon among few others. She's mastered fighting styles such as Leopard and Dragon Style Kung Fu, Stick Fighting, Judo,