Bloom and Wither

Within a 10-foot sphere centred on a point within range, you conjure life and death. Each creature of your choice in that area must make a Constitution saving throw. On a failed save, they take 2d6 necrotic damage, or half as much damage on a successful one. As you cast the spell, any nonmagical vegetation in the area decays and withers, turning into black husks.

Furthermore, you can select one creature in that area to regain hit points. This creature can roll one of its unspent Hit Dice and add your spellcasting ability modifier to the roll. The creature then regains hit points equal to the total.