HELLCAT

Patsy Walker originated from Marvel's romance line of comics in the 1940's, starring her pals n' gals similar to Archie Comics. Patsy and her friend Hedy appeared in the crowd for Reed and Sue Richards' wedding in Fantastic Four Annual #3, although this can arguably be considered just an easter egg (like Stan Lee and Jack Kirby appearing in a comic) rather than pure canon. Therefore, the unequivical first appearance of Patsy Walker in Marvel canon would be Amazing Adventures (2nd series) #14. Over time, it was established that Patsy's mother Dorothy wrote the Patsy comics in-universe, based on her daughter and her friends.

Patsy became Hellcat in Avengers (1st series) #144. The Cat suit was designed with science and magic to enhance the abilities of any woman who wore it. After months of wearing the suit, Patsy found her abilities naturally and permanently enhanced, even without the suit. The original clawed gloves and boots were replaced with more traditional attire, and the retractable claw cable moved to the back of her wrist.

Moondragon recruited Hellcat for training on Titan due to her psychic potential, revealed in Defenders (1st series) #44-46. Patsy demonstrated multiple psychic powers after that, but Moondragon later revealed she had cast some of her own mental power into Patsy, and recovered it for herself in #77. Since that time, Hellcat has only demonstrated intermittent psychic abilities.

Hellcat succumbed to suicide in Hellstorm #14 with the assistance of Deathurge, but was brought back to life thanks to Hawkeye and the Thunderbolts in Thunderbolts Annual 2000 and Avengers Annual 2000. Since then, Hellcat has had certain supernatural senses and abilities in addition to her previous powers and skills.