Being A Villian In DC

Harry always wanted to go to DC and when he died, all he had to do was fill in a questionnaire and he was taken to DC. But, unlike others, he wasn't here to check out Wonderwoman, Powergirl or have a harem. He was here to achieve a childhood dream and that is to become a Villian that even Superman dreads to fight. He wants to hear Lex Luther call him the Devil and the Dark Knight himself would rather fight a whole army of Kryptonians than face him. He wants to put the fear of Harry in every single being in DC.
NB: I do not own any DC characters except my character and a few others.
NBB: This story has been claimed by Anti-Harem sect. If you belong to the other sect then you are in the wrong territory.