FireBall

Casting Time: 1 action
Range: 150 feet
Components: V, S, M
(a tiny ball of bat guano and sulfur)
Each creature in a 20-foot-radius sphere centered
on that point must make a Dexterity saving throw.
A target takes 8d6 fire damage
on a failed save, or half as much damage on a successful one.
Increase damage 1d6 for each level hight to 3