You empower yourself with the unimpedable motion of a tectonic plate. Make an unarmed strike or melee attack with a weapon you’re holding against one creature within your reach. On a hit, the target suffers the attack’s normal effects, and if the target is Large or smaller, you can choose to push it up to 30 feet directly away from you.   If the target collides with an object or creature, it stops moving, falls prone, and takes 2d8 bludgeoning damage. If it collides with an object, the object takes 2d8 bludgeoning damage. If it collides with a creature, that creature must make a Dexterity saving throw, taking 2d8 bludgeoning damage and being knocked prone on a failed save, or taking half as much damage and not falling prone on a success.