World Breaker (HB)

You destroy your surroundings to break your foes. You rip a 5-foot by 5-foot cube of nonmagical terrain from the ground and hurl it at a point you can see within range, where it shatters in a 30-foot cone extending away from you. Each creature in the area must succeed on a Dexterity saving throw or take 4d8 bludgeoning damage and be pushed 15 feet in a straight line away from you.