Crumble and Bloom

You invoke both death and life in the same breath. Choose one creature you can see within range. That creature must make a Constitution saving throw, taking 2d6 necrotic damage on a failed save, or half as much on a successful one.

One creature of your choice that you can see within the sphere then regains hit points equal to the necrotic damage dealt. A creature that has 0 hit points is not healed by this spell.

At Higher Levels. When you cast this spell using a spell slot of 3rd level or higher, the damage increases by 1d6 for each slot level above 2nd.