Water Blades

You create spectral watery blades along your forearms that last for the duration or until you cast this spell again. When you cast the spell, you can make a melee spell attack against a creature within 5 feet of you as a bonus action. On a hit, the target takes slashing damage equal to 1d8 + your spellcasting ability modifier.

At Higher Levels. When you cast this spell using a spell slot of 2nd level or higher, the damage increases by 1d8 for every slot level above 1st.