Uraelak's Minor Drain

You drain life energy from a creature you can see within range. The target must succeed on a Constitution saving throw or take 4d4 necrotic damage and you regain hit points equal to half the amount of necrotic damage dealt.

At Higher Levels. When you cast this spell using a spell slot of 2nd level or higher, the damage increases by 2d4 for each slot level above 1st.