Chromatic Darts

You create a glowing sphere of magic that floats near you for 1 minute. You choose acid, cold, fire, lightning, poison, or thunder for the type of sphere you create. 

While this spell is active, you can use your bonus action to launch a dart from your sphere that hits a creature you can see within range. 

A dart deals 1d4 + 1 damage of the type of sphere you created to its target. 

Any spell or effect such as the spell shield that stops Magic Missle, also stops the darts from this spell.

At Higher Levels. When you cast this spell using a spell slot of 3rd level or higher, the spell creates one more dart for every 2 slot levels above 1st