Kinkiller Rare dagger for D&D

Cursed Item +3 to attack & damage (damage is necrotic) after you kill your first enemy dagger "bonds" with you after 7 kills you need to roll 1d6 every noon. Roll 3 or below you need to stab someone physically closest. Stabbing yourself doesn't count. After 14 kills you roll 1d6 at noon but this time at the failed roll you have one hour to kill someone or you die yourself. Upon your death item is magically returned to where found. Impossible to get rid of, every weapon you try to change it with magically turns into this dagger.