Electrical Burst

You create a ball of crackling blue electricity and fling it at one creature within range. Make a ranged spell attack against the target. On a hit, the target takes 1d8 lightning damage. Hit or miss, the ball then explodes. The target and each creature within 5 feet of it must succeed on a Dexterity saving throw or take 2d8 lightning damage, as the electricity arcs between them.

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