When Jonathan East discovered that he had the power to project his will onto other people, he became the world's greatest expert on ESP. He conducted many experiments and travelled the world in search of opportunities to refine his abilities. He returned to the US, where he constructed a machine called the "Psycho-Intensifier". He fought Spider-Man by attacking him mentally, as well as through the use of the Synthetic Man, an android into which East could project his consciousness. He was defeated when the Psycho-Intensifier magnified the sound of a doorbell ringing at East's door enough to destroy his brain. [1]


He possessed the ability to levitate objects and cause physical pain through Juju Dolls and project his thoughts.


Psycho-Intensifier that he could use to mentally control others

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