as an action, you dash in a straight line until you choose to stop or hit a solid barrier , during this dash, you are invulnerable and any creatures in the way of the dash must make a con/strength save with a  dc of 10+ you dex mod, if they fail the save, they will take 2d12 bludgeoning damage and 1d6 radiant damage, they are also pushed 5 feet away, if they succeed, they will take no damage but will be pushed back 5 feet