The daughter of Eric "Blade" Brooks and Safron Caulder, Brielle Brooks was born with no indication that she was a dhampir, like her father. Therefore, Blade asked Doctor Strange to cast a spell that would prevent anyone from ever sensing Brielle through magic. The family lived happily together for a while, but eventually Blade had to return to his usual ways.^[4] Sometime after, Brielle moved with her mother to Atlanta, where she lived a normal life,^[5] with no memory or knowledge of her father.^[4]

During her teenage years, she started manifesting abilities akin to her father's, coinciding with the death of Doctor Strange, which made the spell wear off. When her mother realized this, she called Blade, and Blade and Brielle finally met after years apart.^[6]

Brielle started training with her father,^[4] and, with time, she started joining him on missions.^[7] Around this time, Strange also returned to life and his spell was reactivated, rendering Brielle invisible through magic once again.^[8]

Agatha Harkness, who was interested in the girl, kidnapped her friend Jayden to get her attention. She revealed she saw potential in her and wanted Brielle to join her, but Brielle refused. Surprising Brielle, Harkness respected her wishes and left, but not before giving her a gift, the kitten Walpurgis, born to Harkness's own cat, Ebony.^[8]

On her way home with Jayden, the two were intercepted by Doctor Voodoo, who also invited Brielle to join him. Despite being hesitant at first, Jayden encouraged her and thus she parted with Voodoo and Walpurgis to explore her potential.^[8]

Dhampir Physiology: Brielle has inherited some of her father's abilities, among which are:^[4]

• Superhuman Strength: As a Dhampir, Brielle possesses the strength of a vampire, Brielle once accidentally broke a baseball bat just by swinging it.^[3] She also has sufficient strength to easily rip off a car door with her bare hands, and she's able to hold her own against ordinary vampires with pure strength.^[9]
• Superhuman Durability^[9]
• Superhuman Agility: Brielle's agility, balance, and bodily coordination are enhanced to levels that are beyond the natural physical limits of the finest human athlete. She can leap several feet into the air and is able to move, jump, climb, flip, and run at incredibly fast speeds without difficulty or exhaustion.^[9]
• Contaminant Immunity: Like her father, the enzymes in Brielle's blood also made her immune to normal vampire bites.^[9]
• Regeneration: Brielle, like true vampires, possesses an accelerated healing ability that allows her to heal mild to moderate injuries with much greater speed and efficiency than ordinary humans. She is capable of healing from severe bites or scratch wounds within a matter of minutes to hours depending on the severity of the wound.^[10]

Experienced hand-to-hand combatant: Brielle was shown to be capable of handling herself in combat more than once.^[5][1]

Just like her father, Brielle possesses one weakness common to all vampires: the need to ingest fresh blood to stay alive and keep her self-control intact. However, as a substitute for blood, she can consume special serum pills that provide even better nourishment than blood would provide. If she doesn't drink the serum pills for an extended period of time, she will weaken and her self-control will be stretched.^[10]

• Katana^[4][7]

• The concept of Blade having a daughter was originally going to be introduced in 2015's Blade (Vol. 5).^[11] However, after months of delays, the writer announced he had quit the book due to what he considered were justified criticisms of the fact that he was a white person writing a book with black leads.^[12]
• Brielle appeared to be Christian.^[10]