Voxel Field

An empty magical grid of 5x5x5 cubes extends out around you in a 100 foot cube. As an action (during the duration), you can fill up to 3 of these unoccupied grid spaces within 20 feet of you with arcane energy, creating a Voxel. A Voxel can be attacked, and has HP equal to 15 + your spell casting modifier and an AC equal to your spell save DC. Otherwise, it acts as terrain and cannot be moved. After the duration, all Voxels disappear.

At Higher Levels: When you cast this spell using a spell slot of 4th level or higher, the Voxel’s HP increases by 10 for each slot level above 3rd.