Draconic Bolt

You call upon draconic magics and hurl a mote of elemental energy  at a creature you can see within range. You choose acid, cold, fire, lightning, or poison for the mote and make a ranged spell attack against the target. If the attack hits, the creature takes 1d8 damage of the type you chose. 

This spell's damage increases by 1d8 when you reach 5th level (2d8), 11th level (3d8), and 17th level (4d8).