Fan Casting Damian Wayne in Nightwing & Red Hood: Gotham Knights

Not even someone like Batman couldn't be surprised by the revelation of a biological child, which he was never aware of. Result of a complex relationship between the hero and the daughter of one of his most notorious villains (Ra's al Ghul), Damian not only had his growth inorganically accelerated, but he was trained from an early age to be a ruthless killer. Now it remains to be seen whether, even with that, Bruce and the others can still bring him to their side.