Dazzler was originally intended to be a multi-media tie in character. Marvel writes a comic, a studio makes a movie, everyone profits. The movie deal never made it into production and the character got cancelled and reworked five or six times before Marvel finally decided to just go with the character they had spent so much time working on.
I can see why. Dazzler is a surprisingly deep character for early comics. Her mother left when she was young, she was raised to be a lawyer like her Dad, she secretly yearned to be an entertainer even after accidentally blinding an auditorium full of students during a performance, and then she hid her powers from her family. A number of her early stories was about trying to make it as a performer despite the universe seemingly forcing her to be a hero by throwing complication after complication at her.
Her powers allow her to turn any sound except her own unamplified voice into focused light, which she can then manipulate. She uses this to create holograms, hypnotic lights, lasers, blindness and even projects herself through the air. Over the years she has used technology to help her store sonic energy but more current versions hasn’t needed such a device.
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