Crushing Blade

You coat your blade in heavy energy. Make a melee weapon attack against a target in range.  On a hit, the ground below the target is destabilized. If the target doesn’t move, the ground below them becomes difficult terrain for 1 minute, and they take 1d8 force damage.

The damage dealt by the initial and secondary damage is increased by 1d8 force damage at 5th level (1d8 and 2d8), 11th level (2d8 and 3d8) and 17th level (3d8 and 4d8)