The issue "The Last Battle!" concluded this character's gang war with the Hammerhead.
The issue "The Last Battle!" concluded this character's gang war with the Hammerhead. This character knocked out Spider-Man's memory with the Nullifier, and he attacked Spider-Man in a giant fishbowl in the first Amazing Spider-Man (*) Annual. In "If This Be My Destiny..!" this villain steals an isotope that is the only cure to a sickness contracted by Aunt May, whom he later married for her inheritance of a Canadian island. This villain took the identity of the Master Planner, caused the death of George Stacy, and founded the Sinister Six. He gained his most notable features in an explosion during his research on nuclear physics. For 10 points, name this member of Spider-Man's rogues gallery who controls four mechanical arms.
The issue "The Last Battle!" concluded this character's gang war with the Hammerhead.
Doctor Octopus (accept Doc in place of Doctor and Ock in place of Octopus; accept any combination of names in Otto Octavius; prompt on Master Planner; even though I purposefully didn’t use any clues referencing it, prompt on the Superior Spider-Man)