Azuth's Finger

Your hand is magically wreathed in the arcane blue flame of Azuth, the First Magister. When you cast this spell you can make a melee spell attack against a creature within 5 feet of you. On a hit, the target takes 2d6 magical bludgeoning damage. For the duration of the spell you can continue to use your action to make melee spell attacks against creatures within 5 feet of you as long as you maintain concentration.

Additionally, you can spend one sorcery point to do an extra 1d6 fire, cold, or radiant damage (your choice) when you hit a targeted creature.