Partnered with Trevor Fitzroy to escape from Earth-1191. Once teleported back to Earth-616 through one of Fitzroy's portals, he broke his agreement and refused to work for Fitzroy. Seemingly agreeable, Trevor then offered to let Kroeger use the portal to get back home. Kroeger agreed. However the portal was one way only, and when Kroeger entered it the wrong way, his energy was drained and he was instantly killed.
Was able to emanate some form of energy.