As two actions, a fountain of churned earth and stone erupts from a point on the ground within 20 meters. Each creature in a sphere centered on that point must make a Reflex saving throw.
On a failure, it takes 6d6 bludgeoning damage.
On a critical failure, it takes twice as much damage.
On a success, it takes half as much damage.
On a critical success, it takes no damage.
The ground in the spell’s area becomes difficult terrain until cleared. Each 1-meter square portion of the area requires at least 1 minute to clear by hand.
You can increase the damage by 2d6 for each additional mana expended.