The Blockbuster Legacy

Roland Desmond gained superhuman strength and durability through a serum-induced transformation, then struck a deal with the demon Neron during the Underworld Unleashed event — retaining full human intelligence within his monstrous body, unlike his brother Mark. He rose to become the ruthless crime lord of Blüdhaven and Nightwing's most dangerous enemy.

Mark Desmond, a slight but brilliant chemist, subjected himself to his own experimental formula seeking physical power to match his keen intellect — the process left him a towering, superhumanly strong behemoth at the cost of his mental faculties. He first clashed with Batman, whose face held an inexplicable, almost primal hold over the transformed Desmond.