Cursed Bullet

A bullet of negative energy streaks towards an enemy you can see within range. Make a ranged spell attack against the target. On a hit, the target takes 1d12 piercing damage and it must make a Constitution saving throw. On a failed save, it takes an additional 1d6 necrotic damage at the start of it's next turn. It can repeat this save at the end of each of it's turns.

At Higher Levels. When you cast this spell using a spell slot of 2nd level or higher, the initial damage increases by 1d12 and the subsequent damage increases by 1d6 for each slot level above 1st.