Red Dragonborn Ancestry

You have resistance to fire damage
Fire breath - Each creature within a 15 feet
cone must make a Dex saving throw. The DC
equals 8 + your Con mod. + your Prof. Bonus.
A creature takes 2d6 damage on a failed save,
and half as much damage on a successful one.
The damage increases to 3d6 at 6th level, 4d6
at 11th level, and 5d6 at 16th level.After you
use your breath weapon, you can’t use it
again until you complete a short or Long Rest.