Bone Spikes

Pointed spikes made of bone erupt from the ground beneath a creature that you can see within range. The target must succeed on a Dexterity saving throw or take 1d8 piercing damage and be considered grappled until the start of your next turn. The target gains no benefit from cover for this saving throw.

The spell's damage increases by 1d8 when you reach 5th level (2d8), 11th level (3d8), and 17th level (4d8).