chromatic exhale

You choose one target with range and imbue it with the power to spew spit magical energy from its mouth if it has one. make a choice between acid, cold, fire, lightning, or poison. Until the spell ends, the creature can use an action to breath and exhale energy of the type chosen in a 15-foot cone. Every creature in that area of effect must make a Dexterity saving throw, 3d6 damage of the chosen type is dealt on a failed save, or half as much damage on a successful one.

at higher and higher levels: When casting this spell using a 3rd level spell slot or higher, the damage increases by 1d6 for each slot level above 2nd.