You're the DARK AVENGER!
The Dark Avenger is emotionally dead, at least that's what s/he thinks. S/he used to be a normal, happy person, but then something tragical happened and s/he lost it. Now s/he seeks justice and hunts down those who wronged her/him, and doesn't let anything or anyone get in between her/him and her/his revenge. The thing is that even if the Dark Avenger got her/his revenge, s/he would probably still go on killing and destroying rampantly, because the tragedy that changed her/his life changed her/his soul for good. S/he avenges her/his tragedy over and over again to anyone, or anything. S/he tries to fill the empty gap in her/his heart with the blood s/he spills, knowing that it will never be enough.
Strengths: The Dark Avenger may be also physically strong and blessed with special powers, but her/his greatest assert is still her/his determination. S/he's ready to go as far it takes to get what s/he wants.
Weaknesses: Traumas and surpressed memories of the past. Reminding her/him of the pain that turned her/him into what s/he is, or the happiness s/he felt before it happened may distract her/him.
Famous Dark Avengers: O-Ren Ishii from Kill Bill, Carrie from Carrie, the ghost from the Grudge.
If you ever became a fictional villain, you'd be the Dark Avenger because you feel very angry inside,thinking that the world has hurt you badly, and sometimes you wish you could hurt the world back twice as bad just to let everyone know how you feel. To avoid this, just keep in mind that revenge is never the answer, because hurting others doesn't help you heal yourself, nor will it change the past. If you feel empty inside, filling yourself with hate will only make things first.