Decay and Regrowth

You interrupt the natural flow of life energies to all within a 10ft radius, centered on a point within range. Each creature of your choosing in that area must succeed a Constitution saving throw or else take an amount of necrotic damage equal to 1d6 plus your spell casting modifier, or half as much damage with a successful save. The total amount of damage dealt becomes of pool of hit points you may distribute to other creatures within that same area of effect, which can include yourself (if you happen to be within the area of effect.)

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 above 2nd.