Chromatic Charge

You brandish a ranged weapon or a thrown weapon you are proficient with, wielding it for the spell's casting, and infuse it with chromatic energy. Choose acid, cold, fire, lightning, poison, or thunder for the type of energy infused. You then make a ranged attack with the weapon against one creature within the range of the weapon. On a hit, the target suffers the weapon attack’s normal effects and becomes charged with chromatic energy until the end of your next turn. While you can see the target, and the target is charged by this spell, you may make a bonus action to cause the energy you hit them with to explode, dealing 1d4 chromatic damage of the chosen type to the target and the spell ends.

This spell’s damage increases when you reach certain levels. At 5th level, the ranged attack deals an extra 1d4 chromatic damage to the target on a hit, and the damage the target takes from the bonus action explosion increases to 2d4 (1d4 and 2d4), both damage rolls increase by 1d4 at 11th level (2d4 and 3d4) and again at 17th level (3d4 and 4d4).