Chromatic Blast

A bright sphere of energy fires from your open hand at a creature that you can see within range. You choose acid, cold, fire, lightning, poison, or thunder for the type of orb you create, and then make a ranged spell attack against the target. If the attack hits, the creature takes 3d8 damage of the type you chose and each creature in a 15-foot-radius sphere centered on that point must make a Dexterity saving throw. Each creature in range takes 3d8 damage of the chosen type on a failed save, reduced by 1d8 per 5 foot space between itself and the target, or half that on a successful save.

At Higher Levels. When you cast this spell using a spell slot of 2nd level or higher, the single target damage increases by 1d8 and the area target damage increases by 1d4 for each slot level above 1st.