Breath of Tiamat

You cast a breath of flame that roars out in a large cone, engulfing all in that area in flame.

Each creature in a 45ft cone must make a Dexterity saving throw.

A creature takes 6d10 fire damage on a failed save, and half as much on a successful one.

Any flammable objects in the affected area that are not being covered ignite.

At Higher Levels. When you cast this spell using a spell slot of 4th level or higher, the damage increases by 1d10 for each spell level above 3rd.