Voltic Bolt

You hurl a mote of Lightning at a creature or object within range. Make a ranged spell attack against the target. On a hit, the target takes 1d10 Lightning damage. The spell has advantage on a creature wearing metal armor. 

This spell's damag iencreases by 1d10 when you reach 5th level (2d10), 11th level (3d10), and 17th level (4d10).