Sand Surge

You create a 10-foot-radius Sphere of swirling sand centered on a point within range. The Sphere is Difficult Terrain, and a creature takes 1d6 slashing damage when it enters the spell’s area for the first time on a turn or starts its turn there.

As a bonus action on your turn, you can move the sands up to 20 feet. It lasts for the duration or until a strong wind (such as one created by Gust of Wind) disperses it.

Using a Higher-Level Spell Slot. The sand’s damage increases by 1d6 for each spell slot above 1st level. Additionally, the spell's radius increases by 5ft for every other spell slot above 1st level.