Blooddrinker Beam

Two tendrils, one inky black and one a warm yellow, streak from your fingers at a target.  Make a ranged spell attack against a creature in range.  On a hit, deal 2d6 necrotic damage and regain that many hit points.

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