Spare

You sacrifice some of your health to mend another creature’s injuries. You take 1d8 necrotic damage, which can’t be reduced in any way, and a creature you touch regains a number of hit points equal to twice the necrotic damage you take. This spell has no effect on types of creatures not listed.

At Higher Levels. 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.