You cause a small crack in the ground to form under one or two creatures within range.  Choose one creature within range, or choose two creatures within range that are within 5 feet of each other and Medium or smaller.  A target must succeed on a Dexterity saving throw or take 1d4 bludgeoning damage and be knocked prone.

This spell’s damage increases by 1d4 when you reach 5th level (2d4), 11th level (3d4), and 17th level (4d4).