Arcane Push

You channel immense magical energy into a simple effect, pushing targets. You send a 5 foot wide, 100 foot long line of force forward. Creatures within must make a Strength saving throw. On a failure. The creature is pushed to the end of the line. On a success, they are not moved. If a creature fails the save, and there is something sturdy enough to prevent them from reaching the end of the line, such as a wall or large rock, the creature takes 1d10 Bludgeoning damage for every 10 feet they had left to move.