You could add the status to have a horcrux. This ensures random people can't go around becoming immortal and splitting their soul, something which should be very rare. And especially young people.
It should be like Death Eater roleplay however, where if you choose to have a horcrux after graduation people can tell and you fall in the evil category, unable to come to Hogwarts again etc.
when I first read the title I was like: ew, who wants to become a Horcrux just like Harry? But your explanation makes sense. I junst don't know if I like the idea or not.
Customer support service by UserEcho