Black Flame

A dark streak flashes from your pointing finger to a point you choose within range and then blossoms with a low roar into an explosion of black flames. Each creature in a 20-foot-radius sphere centered on that point must make a Dexterity saving throw. A target takes 3d8 fire damage on a failed save, or half as much damage on a successful one.

The Black Flames only burn what the caster wants to burn, allies to the caster are immune to the damage caused by the black flames.

At Higher Levels. When you cast this spell using a spell slot of 1st level or higher, the damage increases by 2d8 for each slot level above cantrip.