Eternal Pain

You cast a curse that if hits that target deals 12d6 necrotic damage. Hit or miss the curse will damage the person makes a DC 18 constitution saving throw, on a fail the target takes 1d8 necrotic every hour until it dies or you are targeted by a spell that removes curses like a remove curse spell. On a successful save the effect happens every 8 hours and makes the damage 1d6 instead of 1d8. A greater restoration spell reduces the damage to 1d4 necrotic damage.