Ash Dragon

You launch a dragon of fire in a 10 foot wide 150 foot long beam toward target you can see within range. the dragon turns from that target to as many as four other targets of your choice, each of which must be within 30 feet of the first target. A target can be a creature or an object and can be targeted by only one of the bolts.

Each target makes a Dexterity saving throw, taking 10d8 fire damage on a failed save or half as much damage on a successful one.

At Higher Levels. When you cast this spell using a spell slot of 8th level or higher, the damage increases by 2d6 for each slot level above 7rd.