Flaming Sphere

Casting Time: 1 action
Range: 60 feet
Duration: Concentration, up to 1 minute
A 5-foot-diameter sphere of fire appears in an unoccupied space of your choice within range
and lasts for the duration. Any creature that ends
its turn within 5 feet of the sphere must make a Dexterity saving throw. The creature takes 2d6
fire damage on a failed save, or half as much
damage on a successful one.
See PHB, pg. 242.