Mary and Grace Mercy are a pair of psychopathic killer-sisters, who's first victims were their parents. The sister hid their bodies in the storage bins of their apartment building. The killing continued (victims included the people, who cross them and their school administrator, who started investigating them) and the bodies went to the family farm. The police attention was brought on them by killing a rock star. A reward was offered for them and this attracted Deadpool's interest. The sisters were interested killing a superhero and their weapon-of-choice was a car. As they used their cars to crush Deadpool but Mary forgot to buckle her seatbealt and suffered mortal wounds. Grace took Mary to their farmhouse and euthanized her while swearing revenge on Deadpool. She challenged Deadpool to a face-off but Deadpool was still healing from his injuries and instead shot her in the face with a rifle.

Personal information (According to Deadpool Corps: Rank and Foul)

• Occupation: Serial killers; students
• Citizenship: USA
• Place of Birth: Long Island, New York
• Height: 5'6"
• Weight: 133 lbs.
• Eyes: Blue
• Hair: Blond

Abilities

The sisters are efficient in killing with everyday items like hockey sticks, knives, etc. They know how use guns and drive cars.