Name: Shade
Age: 19
Species: (very)impure vessel(in more ways than one)
Gender: male
Appearance:

(I own the character)
Weapon: the Voidheart Nail

(I don't own the art)
Natural weapons: his void tendrils, they're more reliable
Boss: yes
Boss abilities: his tendrils, sends out red flame, has some of Ghost's abilities, has a barrage of powerful nail slashes
Abilities: all of Ghost's void powers and the monarch wing ability.
Other: none yet aside from the tiny top hat
Love interest: your OC, if you want, first come first serve, he's like Zenitsu but not as much of a perv.