Elemental Fury

You create a glowing aura of elemental energy around your hand or a natural weapon, choosing acid, cold, fire, lightning, poison, or thunder damage to attune this field to when casting the spell. For this spell's duration, all weapon attacks you make using the chosen hand or natural weapon deal an additional 2d6 damage plus an additional amount of damage equal to your casting ability modifier of the chosen damage type.

At Higher Levels. When you cast this spell using a spell slot 4th level or higher, grant a +1 round bonus to duration for each slot level above 3rd, and increase the damage by 1d6 for every 2 slot levels above 3rd with which it is cast.