During "The War of the Realms" storyline, Gorilla-Man is seen talking to Ursa Major in the Wundagore Zoo in Transia, discussing about an undercover operation he's running for Black Panther, until Ka-Zar picks him up and takes him to Avengers Mountain. He helps Black Panther destroy the enemy forces that were attacking the mountain by activating a weapon inside the Celestial's body, but gets wounded after a few Dark Elves infiltrated the mountain. While recovering, he talks to Odin and it's later revealed that he betrayed the Avengers for Dracula's Legion of the Unliving. He's later seen helping Ka-Zar and Blade in fighting Roxxon's Berserkers when infiltrating their secret base in Antarctica.