Echoing Strike

As part of the action used to cast this spell, you must make a weapon attack against a creature, otherwise the spell fails. Hit or miss, the target must then make a Dexterity saving throw, taking force damage equal to twice your weapon's damage dice on a failed save, or half as much damage on a successful one.

At Higher Levels. When you cast this spell using a spell slot of 2nd level or higher, the force damage increases by your weapon's damage dice for each slot level above 1st.