PHB: P. 221
Chromatic Orb
1-level Evocation
Casting Time: 1 action
Range/Area: 90 feet
Components: V, S, M
Materials: a diamond worth at least 50 gp
Duration: Instantaneous
You hurl a 4-inch-diameter sphere of energy 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.
Available for: Sorcerer, Wizard