Hydaelyn

Forcefully draw the life force from a creature you can see within range. The target creature makes a Charisma saving throw against your spell save DC, taking 1d8 necrotic damage on a failure and half as much on a success. You recover hit points equal to half the damage dealt. When you cast this spell using a spell slot of 2nd level or higher, the damage increases by 1d8 for each slot level above 1st.