Torrent of Blaze

As you hold your hand, a massive wave of flames shoots forth from your hand. Each creature in a 60-foot cone must make a Dexterity saving throw. A creature takes 12d8 fire damage on a failed save, or half as much damage on a successful one. The fire ignites any flammable objects in the area that aren't being worn or carried.

At Higher Levels. When you cast this spell using a spell slot of 8th level or higher, the damage increases by 3d8 for each slot level above 7th.