Curtis Base attempted but failed to kill the original Joker. Base and the original Joker end up battling for exclusive right to be called the Joker. The fight ends as Curtis Base, obsessed with being a better Joker than the original one, leaps into a vat of industrial acid in an attempt to replicate the accident which gave the original his appearance. However, the chemicals in this vat are far more concentrated than the ones that bleached the Joker's skin and turned his hair green, and Base dies horribly as he is dissolved alive.
Powers and AbilitiesEdit
Base has no known superhuman powers but seems to be immune to the original Joker's venom.