Chromatic Cut

You brandish the weapon used in the spell’s casting and make a melee attack with it against one creature within 5 feet of you. On a hit, the target suffers the weapon attack’s normal effects, and you can cause chromatic energy to leap from the target to a different creature of your choice that you can see within 5 feet of it. The second creature takes 1d8 magical damage. The type of this damage is determined by the roll on the d8, as shown on the table below.

This spell’s damage increases when you reach certain levels. At 5th level, the melee attack deals an extra 1d8 damage to the target on a hit, and the magic damage to the second creature increases to 2d8. Both damage rolls increase by 1d8 at 11th level (2d8 and 3d8) and 17th level (3d8 and 4d8). You can choose the roll on any of the d8s when determining the damage type.