The adamantium harness was powerful enough to both restrain and pummel the Hulk into submission during a series written by Erik Larsen. The adamantium in his tentacles made besting Iron Man in combat possible, tearing the hero's armor apart with a defeat so harsh that Tony Stark began to doubt his abilities almost enough to allow his persistent problem with alcohol abuse to flare up. The harness is also capable of holding a small jetpack, allowing him to fly to places faster and able to evade Spider-Man more easily. Doctor Octopus is even capable of whirling his tentacles around to deflect small projectiles like bullets.