Well, i was too lazy to write normal description. I just have to say i based her on Ronova and she looks like her.

Same i used JJK mechanics as usual and she can manipulate concept of Death and eventually turn to immortal Semi-Goddess.

She can be killed still, you just..have to valorize her and obliterate.

Gallery:

Normal form:

Goddess of Death form (Lasts not that high amount of time but quite imbalanced as Form):

And don't pay much attention to crosses. i can't just remove them