Well, I think I can handle one more character, I couldn't resist the idea anyways.
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Name: Black Rock Shooter
Nickname: BRS, Mato Kuroi
Age: ???
Gender: Female
Abilities: BRS cannot die, both because of her high regeneration rate and that technically she has no human organs or an actual soul (yet she's filled with blue blood). She happens to summon her weapons to her, both her Rock Cannon and her Black Blade. Her experience with her weapons is top-notch, and her physical traits are above superhuman. Whenever her signature blue eye flame appears in front of her left eye, she is known to improve her fighting capabilities because of it. She also has telepathy to vocalize her thoughts, as she has no real voice to actually talk verbally.
Species: Other Self
Appearance:
[hider=Black Rock Shooter][img=http://fc03.deviantart.net/fs70/i/2013/130/1/6/black_rock_shooter_by_robintheart-d4d7cv2.jpg][/hider]
[hider=Insane Black Rock Shooter][IMG=http://kazasou.files.wordpress.com/2011/07/konachan-com-101564-black_rock_shooter-insane_black_rock_shooter-kuroi_mato.jpg][/hider]
From: Black Rock Shooter (combination of the OVA and the anime)
Other: As this incarnation of BRS is a combination of the OVA and the anime incarnations, BRS can transform into IBRS if dealt with too much mental and emotional stress. This includes a much more savage personality than the original, much stronger weapons, the complete color change (of her eye flame, eyes, and blood) from blue to purple.