Sage

Given name: Sage Rosendin
Current name: Jennifer Green
Gender: Female (?)
Age: 19 (?)
Original height: 5'11"
Current height: 6'
Hero name: Repeater
Quirk: Last Laugh
Quirk description: When she is killed, Last Laugh allows Rosendin to possess and take control of her killer's body and use their quirk. This possession appears to last until she is killed or dies of other means, and she is unable to choose whether she possesses the person. This means that she could hypothetically be immortal. Her quirk also heals all wounds, internal or otherwise. She cannot, though, access the mind or memories of the person. However, until she was killed as an innocent bystander during a villain attack, she was thought to be Quirkless. When she is killed, after she possesses the person, her body vanishes.
Quirk weaknesses: If she is completely disintegrated,  it is hypothesized that she would not be able to return. She also has no control over who she possesses, so if she is somehow killed by a weak quirk, she is stuck. Additionally, if her enemies know about her quirk, they can easily avoid it.
Fighting style: As she does not need to fear being killed, her fighting style is remarkably reckless. She is always on the front lines, going all out, even if the villains are relatively weak. If she goes up against an extra-strong opponent, she is even more rash, since she knows that if they accidentally kill her she will gain their powers.
Psychological weaknesses: Rosendin can be a bit... unstable at times. Having gone through tens of lives, she knows what it feels like to die over... and over... and over again. She also tends to be cocky, believing she can win every time.
Fight sequence: I crouched behind a bush, watching the battle unfold before me. Normally I'm not one to hide, but I was getting tired after having fought all night. Surprisingly, I felt sort of attached to this body, and I liked the quirk it had. However, I had heard there was a very powerful villain out there... I shrugged and leaped from my hiding spot.