Boulder Throw

You slam the hammer into the ground with all your might while commanding the rock around the hammer to rise, and as you lift your hammer the rock it sammed into rises swell giving you an oportuntie to hit the boulder of rick and stone with your hammer to send it flying at your target. Each creature in a 10-foot-radius line centered on that point makes a Dexterity saving throw, taking 4d8 bludgeoning damage on a failed save or half as much damage on a successful one.

If the boulder is sent down a slope it will roll down hit and do the same damage to anyone hit by it while it is rolling.