Hævn the cursed

Hævn the cursed is a soul trapped serving a demon only being able to manifest in a skull or mask of sorts. He will appear as a floating skull or mask with some sort of hand covering like gloves or armor. His life outside of his spirit form is mostly unknown but what is known is that he was a cult leader who made many sacrifices most of which were children. at one point in his life he was brutally beaten by an old man who he always searches for. at times you can see him floating and depending on his mood he could randomly scream "OLD MAN COME OUT HERE AND FACE ME" after which he will get faster.
the demon he is chained to is still unknown only thing that is certain is that it lives in a void.
=== Abilities ===
his most used ability is a passive ability that cancels all his opponents abilities. While this may seem like a blessing due to his immortality he is cursed to live forever just killing and killing.
The magic book he uses was given by the demon lord he is a slave to. The book uses a type of adapting magic so that his power is double his opponents. But just because the demon lord dosent want to risk losing his book it has its own mind and is just another soul its abilities are to make tendrils come out of the book which it uses to walk and sometimes jump away from danger.
Deaths touch the ability that lets him send people straight to hell if he touches them while this ability is active a black liquid will come out of the ground where several tendrills will drag them down.
Floating since he has no legs he just floats its unknown how but he does.
Dark magic is his main type but sometimes he can copy other types but no matter what they always have a dark aura.