Crackling Burst

You blast a creature or object with lightning, which then arcs to a number of other targets up to your spellcasting ability modifier within 30 feet of the primary target.

Each target must make a Dexterity saving throw, taking 5d10 lightning damage on a failed save or half as much damage on a successful save. If the primary target is wearing heavy armor made primarily of metal or is a creature made primarily of metal (such as an iron golem) then the secondary targets have disadvantage on their saving throws.

At Higher Levels. When you cast this spell using a spell slot of 5th level or higher, theamage increases by 1d10 for each slot level above 4th.