Vehicular Vortex

You create a floating spiraling sphere of air directly beneath you, lifting you off of the ground by 5 feet. Until the spell ends, you ignore difficult terrain, your movement speed is doubled, and Attacks of Opportunity against you are made at disadvantage.

As a Bonus Action on your later turns, you can cause the vortex to lash out at a target you can touch, dealing 2d8 Force Damage

Using a Higher-Level Spell Slot. The damage increases by 1d8 for every slot level above 3.