Erupting Toadstools

Conjure a patch of explosive mushrooms in a 20-foot radius that create difficult terrain for a turn.Each creature in a 20-foot-radius sphere centered on that point must make a constitution saving throw against your spell casters modifier. A target takes 8d6 poison damage on a failed save, or half as much damage on a successful one.

At Higher Levels. When you cast this spell using a spell slot of 4th level or higher, the damage increases by 1d6 for each slot level above 3rd.