Alexis's Bottled Lightning by u/SkyMeom

You release lightning from a bottle. Make a ranges spell attack against a creature you can see within range. On a hit, the target takes 1d6 lightning damage.  When you roll a 6 on the damage roll, you can target another creature with this spell within 30 feet of the original target, making another ranges spell attack.

The spell's damage increases by 1d6 when you reach 5th level, (2d6), 11th level (3d6) and 17th level (4d6).