You conjure a fist or foot made of rock and earth, punching it towards a creature within 10 feet of you. Make a melee spell attack. On a hit, the target takes 1d8 bludgeoning damage and must succeed on a Strength saving throw or you either knock it prone or push it 5 feet directly away from you (your choice).   This spell’s damage and distance a target is pushed increases by 1d8 and 5 feet when you reach 5th level (2d8 and 10 feet), 11th level (3d8 and 15 feet), and 17th level (4d8 and 20 feet).