Eldritchball

A beam of crackling energy streaks toward a creature within range and then bursts into an explosion of flame. Make a ranged spell attack against the target. On a hit, the target takes 1d10 force damage. (Separate to the first lot of damage) Each creature within a 10-foot radius must make a DC 12 Dexterity saving throw, on a fail the target takes 1d8 fire damage on a failed save, or half as much damage on a successful one. The fire spreads around corners.