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wattpad book

okay so yesterday I read a wattpad book that I actually liked and now I can't find it.
it was a draco malfoy fanfic and the MC was called hero potter. bearing in mind the golden trio and etc dont exist. She is badass and on the first day after 5 years she kills a man in the great hall.
It shows flashbacks of her and her friends but she always says that she must distance herself otherwise "they" would kill them too.
she has been through a lot and has been turned into a weapon. She has powers that allow her to do strange things. Her best friend is Phoenix Evans who is dating Blaise Zabini.
There is some smut in it.
please help me find it.