Electrify

You touch a willing creature, and they are charged with electrical energy until the spell ends. Whenever they are hit by a melee attack, the attacker must make a Constitution saving throw, taking 2d6 lightning damage on a failed save or half as much damage on a successful one. The spell ends if you dismiss the spell as an action.

At Higher Levels: If you cast this spell using a spell slot of 2nd level or higher, the damage increases by 1d6 for each slot level above 1st.