Crimson Rose Cafe FC - Bloody Mary

So this is an FC (aka fanmade character) that I'm putting into the Crimson Rose Café for roleplay purposes. She's of the Rise of the Guardians fandom. She's actually supposed to be a persona of mine for a work that and I are planning to collaborate on at some time in the future. Thought she'd be good to use here as well, but not as a persona.

Name: Formerly known as Mary Ann the Noble. Currently goes by Bloody Mary, or simply Mary. She does not remember her surname, nor does she care.

Age: She lost count. As long as she stays in her late teens, she's fine with not knowing.

Race: Spirit (formerly human)

Gender: Female

Height: 183 cm (6'0")

Weight: 48 kg (105.82 lbs)

Personality: Mostly cold, but softens around children. She's a rather dignified individual, though she actively creates trouble every once in a while for the fun of it. She's also surprisingly tender and caring of especially the (physically) younger folk. When fighting, she is vicious and full of surprises.

Hobbies: Visiting children, following children, taking care of children, causing chaos around those who are no longer children.

Appearance: The picture provided. However, this drawing is a rough draft, and will most likely be revised or redone, either by me or my friend. Sorry for not having a front view picture.

Bio: Mary doesn't remember everything in her life. What she does remember is that she was regarded to be a witch by many--though things turned good for her when she discovered a cure to a disease that no one else could remedy. She'd later travel through the woods in order to help treat other towns, and would gain a friend called Willow in the process. She became the wise-woman of the local area (though she was perhaps only in her early teens back then), and treated mostly sick or wounded younger children. Her friend Willow would sometimes stop by to provide the town children with entertainment, and would always drag her along into the woods.
    One night, though, Mary was gravely injured for reasons that she no longer remembers--all she knows is that all four limbs of hers had been broken, along with some other wounds. While Willow had attempted a poultice for her, an accident within the house had trapped both friends in a fire they could not escape. The Man in the Moon took pity on them both, and for their respective deeds of saving lives at some point in the past, he revived them as spirits. Mary became Bloody Mary, Willow became Will-o'-the-Wisp. One coming to the children that call her name, the other beckoning the children that lose their way.
    While they've been surprisingly good with children, horrid myths around them came to rise. Honestly, Mary doesn't blame them--she and Willow have pulled a millennium's worth of pranks already, it's only natural.
    Mary and Willow were later elected to be the next Guardians, after Jack Frost. But the two girls have never been successfully recruited.

Just so you know, Bloody Mary has some powers. She uses blood manipulation (it's not the same as bloodbending, I swear), changing certain body parts to act more like weaponry, teleportation to anywhere through reflective surfaces (though you can get lost temporarily), and underwater (or under any other liquid) breathing. She's also capable of flight (though it's not the speedy kind) and generating certain sounds (like echoes or bells or songs).

That being said, she's got her weaknesses. Children do have to believe in her existence in order for her to remain in power. When she reaches a certain milestone of non-believers, she'll start cracking apart like porcelain or glass. (Child deaths don't count as long as they believed in her up until that point.) She's also weak to winter temperatures, though she doesn't allow that to hinder her so much. She's also one of those Glass Cannon characters, so as long as you time them right, a few strong blows will knock her out cold.

Oh, here's a little thing. Pitch Black seriously annoys her because he wants to recruit her for his own purposes. He is also equally unsuccessful, if not more so, than the Guardians.

Her center is pride. She helps children gain confidence in themselves, or she pushes them to downfall via hubris. The blood she controls (and appears out of nowhere) does wonders on the willpower of any child who has been marked with it.