Caber joined his friend Leir and the other Celtic gods in aiding the Asgardians in their battle against the forces of the Egyptian god Seth. With Leir, Caber next attacked the camp of the Fomorians, the traditional enemies of Avalon. Leir wished to claim Sif as his bride, so Caber followed him to Asgard on Leir's request. Caber and Leir were captured by the Warriors Three. Caber clashed with Heimdall in Asgard, and then later arrived on Earth with Leir and Sif. Caber, Leir, and Sif then traveled to the Black Galaxy and found Thor there. The gods then traveled to Asgard. Caber, Leir, and Hercules then battled Surtur and Ymir. Caber then witnessed Leir's defeat in Leir's duel with Sif.