Corruption

You inflict a withering curse upon a 5-foot cube centered on any point that you can see within range, withering the plants and darkening the ground with fel power. At the start of each of your turns for the duration, the corruptive curse grows 5 feet in every direction. Whenever a creature starts its turn in a space afflicted by the curse, it must make a Charisma Saving Throw or suffer 1d6 points of Necrotic damage. After the spell has ended - the ground visually stays corrupted but does not hold any damaging properties.

For each level of spell slot used to cast this spell beyond 1st - the Necrotic damage increases by 1d6.