Arterial Whip

An undulating whip of blood appears in your hand, writhing like a severed artery; you are considered proficient in this weapon. It deals 1d6 + your spellcasting modifier as necrotic damage on a hit and has the finesse, light, and reach properties. Attack rolls made with this weapon are done at advantage if the target is missing hit points.

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