The opening story arc of the "Hulk" (vol. 2) series that premiered in 2008 established that the Red Hulk is very aggressive, as he murders the Hulk adversaries Wendigo and Abomination; destroys the Helicarrier of the spy organization S.H.I.E.L.D.; defeats several Marvel heroes; and, after causing an earthquake in San Francisco, is finally defeated by the combined efforts of the Hulk and Thor. In a subsequent storyline, the Collector places the character with other villains on a team called the Offenders, an evil version of the Defenders, in a bid to prevent the original Hulk from reuniting with Jarella. In that story, Red Hulk siphons the Power Cosmic from the Silver Surfer, seemingly killing him, steals his board along with Terrax's cosmic ax, and uses the power to go on a killing spree, killing Namor, Tiger Shark, Dr. Strange, Baron Mordo, the Grandmaster, Terrax, a time-displaced Hulk, and Psycho Man. However, when Red Hulk reveals this to Galactus, Galactus swiftly takes back the Power Cosmic from him. Subsequently, almost everyone he killed is brought back to life with no memory of the event.