Blight

Necromantic energy washes over a creature of your choice that you can see within range of the spell, draining its moisture and vitality. The target must make a Constitution saving throw. It takes 8d8 necrotic damage on a failure, or half as much on a success. This spell has no effect on undead or constructs.

If you target a plant creature or a magical plant, it makes the saving throw with disadvantage and the spell deals maximum damage to it. If you target a nonmagical plant that isn’t a creature, such as a tree or shrub, it doesn’t make a saving throw; it simply withers and dies.

At Higher Levels. When you cast this spell by spending Mana points equal to a 5th-level spell or higher, the damage increases by 1d8 for each level above 4th.