Conjure Woodland Beings Redux

You summon nature spirits that flit about you for the duration. Until the spell ends, each creature you choose that enters a space within 15 feet of you for the first time on a turn or starts its turn there must make a Wisdom saving throw, taking 4d8 force damage on a failed save or half as much damage on a successful one.

In addition, you can take the Disengage action as a bonus action for the spell's duration. 

At Higher Levels. When you cast this spell using a spell slot of  5th level or higher, the damage increases by 1d8 for each slot level above 4th.