Fireball

150 feet
Each creature in a 20-foot-radius sphere must
make a Dexterity save. A target takes 8d6 fire
damage on a failed save, or half on a success.
The fire spreads around corners and ignites
flammable objects that aren't being worn or
carried.
At Higher Levels: The damage increases
by 1d6 for each level above 3rd.