Eruption

You cause a volcanic eruption. Choose a point you see on the ground within range. The ground within 5ft of the chosen point becomes difficult terrain. A creature standing on the affected area when you cast the spell must make a Dexterity save, taking 4d6 fire damage on a failed save, or half as much on a success. A creature also must make this save when it ends its turn in the affected area.

Also, four fiery globs launch into the air from the eruption site, rising to a height of 20ft before crashing down at four separate points you see within 30ft of the eruption site. A creature within 5ft of an impact must save against the spell's damage as above.

For the duration, you can use a bonus action on each of your turns to cause the volcano to launch three more globs of magma. When the spell ends, the fire and magma disappear, but the difficult terrain of the eruption remains until cleared.

At Higher Levels. When you cast this spell using a slot of 6th or higher, each glob's damage increases by 1d6 for each slot above 5th.