WALPURGIS
Brielle Brooks, AKA Bloodline, is the partially vampiric daughter of Blade the Vampire Hunter. Shortly after she joined her family’s monster-fighting legacy, Brielle encountered Agatha Harkness, who wanted to take her on as a mystical apprentice.
Around this time, Ebony gave birth to Walpurgis, a kitten-like creature with distinctive purple fur. Bloodline rejected Agatha’s offer, but Agatha gave Bloodline the kitten anyway in MARVEL’S VOICES INFINITY COMIC (2022) #96 by Anthony Oliveira and Julian Shaw.
Although Walpurgis first appeared as a cat, he can take on many other forms, and he’s grown larger than a human on occasion. Like Ebony, Walpurgis possesses multiple mystical abilities, including teleportation and the power to create a localized eclipse by temporarily blocking the Sun.
When Bloodline joined several other young heroes as a student at Avengers Academy, Walpurgis accompanied her and helped the team handle threats like Emplate. Later, Ebony fell ill, leading Walpurgis and Bloodline to travel to another dimension to retrieve a rare flower Agatha needed to treat her cat.