Jocasta before, Taskmaster could not predict what she might be about to do. Jocasta was granted provisional status with the team. During this period, she aided them against threats such as the giant robot Red Ronin, the Yellow Claw, the Berserker, Pyron, and the second incarnation of the Brotherhood of Mutants. At one point, she was electronically deactivated by Iron Man under control by Ultron, but she was reactivated following Ultron's defeat. Jocasta did not believe she was accepted by most of the Avengers, and she was never officially inducted into the team. After she singlehandedly defeated a rogue sentient weather satellite, she left the Avengers following a membership reorganization. She was unaware that they had planned to grant her special substitute member status, which allowed her to remain with the team despite limits imposed on the team's membership roster. Wandering the country, Jocasta discovered that her cybernetic senses and powers were malfunctioning. She sought help from the Fantastic Four and was befriended by them and Alicia Masters. Soon, it became apparent that her malfunctioning powers were the symptoms of a pre-programmed suggestion which compelled Jocasta to rebuild Ultron. She did, but soon teamed up with Fantastic Four member Thing and the robot Machine Man to defeat Ultron. During this time, Jocasta and Machine Man developed feelings for each other. But in a final confrontation with Ultron, Jocasta intentionally detonated a weapon Ultron was holding, knowing she would be caught in the resulting blast. She was destroyed, but Ultron nevertheless survived, until Machine Man reached down his own throat to tear out vital circuitry. The Avengers held a memorial for their fallen ally, and Machine Man attended, realizing love for Jocasta. Jocasta was reassembled some time later by technicians of the High Evolutionary. Jocasta retained enough of her programming to send out a signal to the Avengers. The team had disbanded at the time, but the signal reached reserve members, including Beast, The Captain, the Falcon, Hercules, the Hulk and Yellowjacket. Jocasta helped them fight the High Evolutionary's force and located the man's base deep below the surface of the ocean. Jocasta sacrificed herself once again to blow up the High Evolutionary's command ship by deliberately disrupting the ship's matter/anti-matter drive, which caused an explosion that destroyed the ship and its contents. Before she sabotaged the ship, Captain America assured her that she was a true Avenger. Jocasta's robotic head