Ivring was a henchman that worked for Cameron Kaiser. Facing financial ruin Kaiser renamed his new casino, Camelot to Joker's Wild, knowing that Joker would try and destroy it. Ivring was hired by Kaiser it infultrate Arkham Asylum and make sure the Joker escaped. When Joker started to feel "sick", Ivring took him to the infirmary and "accidentally" left the door open so he could escape. At the casino Ivring cought Batman but after a short fight Ivring escaped.