Electric Bolt

You hurl a mote of fire at a creature or object within range. Make a ranged spell attack against the target. On a hit, the target takes 1d10 Lightning damage. 10% chance to do an extra 1d4 damage to a random creature within 10 feet.

This spell's damage increases by 1d10 when you reach 5th level (2d10), 11th level (3d10), and 17th level (4d10). Extra damage increase 1d4 when you reach 5th level (2d4), 11th level (3d4), and 17th level (4d4).