Cone of Flame

A blast of flame erupts from your hand. Each creature in a 60-foot cone must make a Dexterity saving throw. A creature takes 9d8 fire damage on a failed save, or half as much damage on a successful one.

A creature killed by this spell is turned to ash.

At Higher Levels. When you cast this spell using a spell slot of 7th level or higher, the damage increases by 1d8 for each slot level above 6th.