First Appearance: Batman and Robin (2011) #4Robert Kirk Langstrom is a scientist trying to work on a cure for deafness. However the formula he created mutated both him and his test subjects into giant bat creatures.
Forever Evil (2013) #1: Man-Bat was among the criminals to gather at Happy Harbour as Ultraman declares that the world belongs to the Crime Syndiacte and the reveal of Nightwing's civillian identity as Dick Grayson.
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