Double Breath

You hold a dragon scale in each hand and your hands momentarily turn into dragon heads spouting a breath weapon. Two breath weapons shoot out from your hands, each 5 feet wide and 120 feet long in any direction you choose. Choose acid, cold, fire, lightning, or poison. Each creature in a line must make a Dexterity saving throw. A creature takes 10d6 damage of the chosen type on a fail. If a creature is in both of the spell's lines, it takes damage as if it were in one line.

At Higher Levels. When you cast this spell using a spell slot of 7th level or higher, the damage increases by 1d6 for each slot level above 6th.