Elemental Claws

You create two huge beast-like spectral paws with claws around both of your hands. 

When you cast the spell, choose the damage type among: fire, lightning, cold, acid, or poison. For the spell duration, you can use your action to make a melee spell attack with one of the paws. On a hit, the target takes 1d8 + Strength Modifier (minimum of 1) damage of the chosen type. If you use this action, you can attack with the second paw using a bonus action. While you have this spell cast, you cannot wield any other weapons, but can still cast additional spells. 

At Higher Levels: when you cast this spell using a spell slot of 3nd level or higher, the damage increases by 1d8 per spell level above 2nd.