Name: Black Jack.
Age: Somewhere in his 30s maybe.
Gender: Male.
Species: Human?
Personality: Black Jack is homicidal, psychopathic, ruthless, sadistic, maniacal, lunatic, manipulative, intelligent and diabolical.
Looks:

Superpowers: Shadow Manipulation
Weapons/Gadgets: Arm blades and throwing knives
Weakness: Holy Light/Objects.
Health: 1,000/1,000
Boss fight Scenario: Black Jack approached you as you felt a chill crawling on your back.