For suicide squad isekai RP:

Born from the core of a dying planet colliding with a star, Keira wandered many star systems seeing many life forms. She wasn't just searching for life, she was searching for a power source. Keira soon found a life form named. 'Bain' on the planet 'drok'. She waited for him to go to sleep before infecting his dream, and slowly made it into a nightmare, feeding off of his fear. Once Keira was done, she fled from drok's nightmare and went back to wandering around the univeres.

after many MANY years of wandering and feeding off of life form's positive and negitive feelings in dreams, she arrived to Earth and tarrorized the people of brooklin, only to get captured by a vaccume of sorts. When she was realised, she was in a glass contraption on a flying vehicle with people in orange prison suits on. One moment Keira was still in the glass, and the next the glass broke and she was out. the helicopter had crashed on a knew world, but at the heat of the moment, Keira didn't realize this.

A little Info:

She is made out of star dust and space gas.