You summon a miniature bolt of electricity and zap it at a creature or metallic object within range. Make a ranged spell attack against the target, made at advantage if the target is made of metal or wearing metallic metal. On a hit, the target takes 1d10 lightning damage. Hit or miss, the bolt of lightning then explodes with a burst of thunder, emitting a thunderous boom from the target that is audible out to a range of 100 feet. The target and each creature within 5 feet of it must succeed on a Constitution saving throw or take 2d6 thunder damage.

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