Blight

Necromantic energy washes over a creature of your choice within range, draining moisture and vitality. The target must make a Constitution saving throw, taking 8d8 necrotic damage on a failure, or half on a success. This spell has no effect on undead or constructs. A plant creature or magical plant has disadvantage on the saving throw and takes maximum damage. A nonmagical plant that isn't a creature withers and dies. The spell leaves its mark visibly, grass within 5 feet of the target yellows and dies, and the target's skin takes on a desiccated, parchment-like quality for several hours. This is the magic of the Blightlands condensed into a single moment.