Gnomish Furtiveness

You have the uncanny ability to to resist and possibly avoid breath weapon attacks.

Prerequisite: Gnome.

Benefit: When you are subjected to a breath weapon effect that allows you to make a saving throw to take only half damage, you can use your reaction and instead take no damage if you succeed on the saving throw, and only half damage if you fail.

Once you use this feature, you cannot use it again until you take a short or long rest.