Wheel of Inevitability

The wheel is ever turning, inevitable. You create a magical wheel that appears in your space and spins at your feet. When your concentration on this spell ends, the wheel rolls rapidly towards one creature of your choice within range. The target must make a Dexterity saving throw or take 4d6 bludgeoning damage plus an additional 1d6 bludgeoning damage for each full round spent concentrating on the spell.

At Higher Levels. When you cast this spell using a spell slot of 2nd level or higher, the number of rounds you can concentrate on it increases by 1 for each slot level above 1st.