Draconic Claws

Draconic claws and scales cover your arms and hands, giving you a +1 to your AC for the duration. You can immediately make a melee spell attack against a creature within 5 feet of you dealing slashing damage equal to 3d6 plus your spellcasting ability modifier. 

As both an Action and/or a Bonus Action on your later turns, you can repeat the attack against a creature within 5 feet of you.

Using a Higher-Level Spell Slot. The damage increases by 1d6 for each spell slot level above 3.