Crackling Corona

When you cast this spell, five orbs of lightning begin hovering around your back. As a bonus action you can send out one of these orbs at a creature you can see within 30 feet of you. Make a ranged spell attack when you do, at advantage if the creature is wearing metal armor. On a hit you deal 2d10 lightning damage and the creature makes its next weapon attack with disadvantage, provided it isn't resistant or immune to lightning damage.

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