Earthwake Technique

You slam a fist into the ground, creating a 5-foot fissure that begins moving forward. Each turn that you are concentrating for 1 round, the fissure moves 10 feet in a direction of your choice. When you break concentration for any reason, the fissure erupts in a pillar of stone, dealing 4d8 bludgeoning damage to anyone in its space, or half as much on a successful Dexterity saving throw. Until the fissure erupts, it creates an weak updraft, allowing rito and creatures with a paraglider to take flight.